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Product Description
Product model: AILAVI-180312
Name: Single-cell lithium battery boost fast charging source module
Main control chip: TPS61088A
Identification chip: FP6601Q
Input voltage: 2.8 ~ 4.5V, very suitable for 3.7V polymer lithium battery
Output voltage: The default is 5V, triggering fast charge after 4.5V ~ 12V according to the protocol.
Input rated current: 8A
Output current: 5V3A, 9V2A, 12V2A. Output current is adaptive.
Output power: up to 24W.
Support Agreement: QC2.0, QC3.0, Huawei FCP, DCP Agreement
Efficiency is up to 93% , with a typical value of 90% .
Module size: 47.5 (length) * 16.5 (width) * 8 (height) mm (including USB)
Module net weight: about 7 grams
The FP6601Q chip integrates the HiSilicon fast charge protocol and Qualcomm QC2.0/3.0USB interface fast charge protocol, which can quickly charge devices that support FCP and QC2.0/3.0 protocols. In addition to supporting the USB BC1.2 standard, it also supports FOR Apple and FOR Samsung devices. The chip can automatically detect whether the currently connected device is a QC2.0/3.0 or FCP device to automatically adjust the voltage.

feature of product:
1. Support FCP voltage and current output protocol.
2. Support Qualcomm QC2.0/3.0 classA 5V, 9V, 12V voltage output.
3. Automatically recognize FCP and QC2.0/3.0 fast charge protocol.
4. Support the protocol equipment of Chinese telecom enterprise YD/T 1591.


The TPS61088 is a high power density, fully integrated boost converter with an 11mΩ power switch and a 13mΩ rectifier switch that provides an efficient, small form factor solution for portable systems. With a wide input voltage range of 2.7V to 12V, the TPS61088 supports applications with single or two-cell Li-Ion batteries. The device features 10A switching current capability and is capable of delivering output voltages up to 12.6V.


The TPS61088 uses an adaptive constant off-time peak current control topology to regulate the output voltage. The TPS61088 operates in PWM mode under medium to heavy load conditions. Under light load conditions, the device can select one of the following two modes of operation via the MODE pin. One is a PFM mode that increases efficiency; the other is a forced PWM mode that avoids application problems due to low switching frequency. The switching frequency in PWM mode can be adjusted from 200kHz to 2.2MHz with an external resistor. The TPS61088 also implements a programmable soft start function and an adjustable switching peak current limit. In addition, the device is available with 13.2V output overvoltage protection, cycle-by-cycle overcurrent protection, and thermal shutdown protection.
The TPS61088 is available in a 20-pin 4.50mm × 3.50mm VQFN package.

Product application introduction:
This module can be applied to a single-cell lithium battery to 5V-12V output for general digital product charging, such as mobile phones, Ipad, MP3, PSP and so on. It can be used as a high current output mobile power source only by connecting the battery. It is also possible to supply power to the 5-12V product by setting the output voltage.

Product Description
This electricity sensor is based on TA12-100 current transformer, which can transform AC signals of large current into small amplitude signals. The maximum current that can be detected can reach 5A, and the present current signal can be read via analog I / O port.
Specification:
Type:Sensor Brick
Interface:3PIN
Power Supply:5V
Board Size:30 × 24 × 1.6mm
Package Include:
1 x Analog Current Meter Sensor Module Board

Product features:
Wireless charging transmitter module, compatible with WPC standard wireless receiver Maximum support 5W charging power Support foreign body detection (FOD) function Low static power consumption and high efficiency Dual LED indicator light can remind the module of the status of power on, charging, charging saturation and foreign body detection (FOD) Limit parameter: Rated working voltage: 5V DC Working temperature: - 20 ° ~ 85 ° Storage temperature: - 40 ° ~ 125 ° Note: the limit operating voltage of the product shall not exceed 5.5v DC Operation instructions: 1. When the power is switched on, the green LED on hw-225 will light up. 2. For the mobile phone with wireless charging function, the coil center of the module hw-225 on the back is placed on the coil of the module to charge the mobile phone (note: the deviation of the position of the mobile phone placed on the coil of the module will affect the charging effect). During the charging process, the red LED on the module hw-225 will light up and the green LED will be put out. 3. After charging, red LED goes out and green LED lights up. 4. The wireless charging module has the function of foreign body detection. When there is a metal foreign body on the transmitting coil of the module, the red light LED and the green light LED will flash.

Description:
1. On-board TDA7266 audio power amplifier chip, double track 7W 7W, suitable for 4-8ohm 5-15W speakers
2. The main pin has led chip, convenient external device control, on-board 2 way 5.08(mm) pitch 2P terminal, represent left and right channel output
3. The on-board dial potentiometer, can adjust the output volume
4. Support DC socket, terminal blocks, row needles 3 power input mode, the default is DC socket, working voltage: 3-18V
5. The board size: 52(mm)x33(mm)

Features:
Support devices with RS485 interface: surveillance cameras, video capture device, fingerprint attendance machine, PBX, CNC machine, microcontroller, etc.
Specifications:
Standard: USB2.0 standard, backward compatible, in line with the standard RS485
Direction control: the use of automatic data flow control, auto distinguish and control data transfer direction
Baud rate:300-9216000bps, automatically detecting the serial signal data rate
Load capacity: support multipoint, each converter allows RS485 interface device to connect 32
Interface Protection: TVS tube protection, USB self-recovery protection
Support Windows98/ME/2000/XP/WIN7/Vista, Linux, Mac
Color: green
Size: 75*18*14mm
Net weight: 15 g
Package Include:
1* USB to TTL/RS485 Converter Adapter Module

Product DPescription
Board size: 16mm*18mm
Power supply voltage: 3.3V or 5V
Pin header spacing: 2.54mm (100mil)
The small board integrates all the resistors and capacitors required by the HMC5883L, and data can be read through the IIC interface only by external power supply, ground, SDA, and SCL lines
The shipping headers are not soldered.
Honeywell three-axis electronic compass IC HMC5883L Dcompass. It is a small-size, calibration-free, low-power, low-cost electronic compass (compass) suitable for mobile phones and other handheld devices on the market.
Product introduction:
Digital output: 2C digital output interface, which is very convenient to design and use.
Small size: 3x3x0.9mm LCC package, suitable for mass production.
High precision: 1-2 degrees, built-in 12-bit A/D, OFFSET, SET/RESET circuit, there will be no magnetic saturation phenomenon, there will be no cumulative error.
It supports automatic calibration procedures, simplifies the use steps, and the terminal products are very convenient to use.
Built-in self-test circuit, convenient for mass production test, no need to add additional expensive test equipment.
Low power consumption: power supply voltage 1.8V, power consumption sleep mode-2.5 microampere measurement mode-0.1mA
Main applications: smart phones, sports watches, handheld compasses, automotive electronics, etc.

Function Description:
l The size is exactly the same as most breadboards.
l Small and exquisite figure, suitable for various experimental equipment.
l Suitable for electronic developers to test circuits.

Features:
l Input voltage: 5V
l Output voltage: 5V/3.3V (switchable)
l Output current: less than 500mA
l Interface: Micro USB interface (power supply)
l Chip: 1117-3.3 voltage regulator chip

Product Description
RCWL-0516 is a Doppler radar technology, specialized in the detection of moving objects in the microwave induction module.
The module has the characteristics of high sensitivity, high induction distance, high reliability, large induction angle, wide power supply voltage range, etc. it is widely used in various kinds of human body induction lighting and alarm and so on.
Characteristic:
Using special signal processing control chip RCWL-9196
Wide operating voltage range: 4-28V
Compared with the traditional infrared induction PIR, the penetration detection ability
Blocking time, adjustable distance
Can output 3.3V power supply

Describe
TURN NORMAL SPEAKER INTO BLUETOOTH: Applicable speaker impedance are 4~8ohm, great for turning normal speaker into Bluetooth speaker.
BLUETOOTH AND USB: This amplifier board supports Bluetooth audio input and DC 5V voltage input by Micro USB.
DUAL CHANNEL : Dual channel of 3W 3W power output and 2.54mm, 4pin output connector.
GOOD SOUND QUALITY: Sound quality is very good by using this audio power amplifier module.
BETTER PERFORMANCE: Digital amplifier has a higher overload capacity than analog amplifier, and it won't cause crossover distortion, transient inter modulation distortion ，no worries about the loudspeaker internal resistance.
Specifications:
Audio Input: Bluetooth
Output Power: 2x3W
Suitable Speaker Impedance: 4~8ohm
Input Voltage: 5V DC
Power Supply Connector: Micro USB
Output Connector: 2.54mm, 4PIN
Size: 42 x 25mm / 1.65 x 0.98"

Description
Audio source input mode:
1. Bluetooth receiver
2.USB decoding playback
3. TF card decoding and playback
Supports playback formats: MP3, WMA, WAV, FLAC, APE (only supports FAST encoding format of APE)
Power supply: 5VDC (the original mobile phone charger can supply power with a small USB plug)
The pre-output can directly push the earphones, and can also be connected to the post-amplifier for use

1. In : Input positive
2. Out : Output positive
3. GND: IN-/OUT-
4. Dimensions:45*31*16mm(length*width*height)
5. Input voltage: 9-35V(Maximum limit voltage is 35 v, please leave some leeway to use ,otherwise be damaged)
6. Output voltage: 5V
7. Output current: 5A
8. Output power: 25w

1.Description:
DC Motor Speed Controller,The full name of pulse width modulation is Pulse Width Modulator.Abbreviation PWM.DC motor governor is a device for adjusting the speed of a DC motor.
DC motor speed regulation, industrial conveyor belt speed regulation, lighting and lighting mediation, computer power supply cooling, DC fan, etc., have been widely used.
2.Features:
1>.High power;
2>.Small size;
3>.Low power consumption;
4>.Simple operation;
5>.Dual Driver;
6>.Support independent control for 2 motors;
7>.Support 433MHz remote control(Not include!).
3.Parameters:
1>.Product Name:5A Dual Motor Drive Module
2>.Product Number:ZK-5AD
3>.Working Voltage:DC 3.0V-14V
4>.Input Signal Voltage:DC 2.2V-6.0V
5>.Drive Current:5A
6>.Stand-by Current:10uA
7>.Working Temperature range:-20~85 Celsuis
8>.Working Humidity range:0% -95% RH
9>.Size:38*27*18mm
10>.Mounting hole diameter:2mm
4.Conventional control method
1>.Module can control 2 DC motors separately.
2>.D0 and D1 control Motor 1;
3>.D2 and D3 control Motor 2;
4>.High level signal is DC 2.2V-6.0V;
5>.Low level signal is DC 0.0V-0.7V;
6>.D0~D3 can receive control signal from MCU and other signal source;
7>.Control logic by Drive Logic Table shown as following in description picture.
5.Remote control mode(Don’t Include Remote control):
1>.It can be control by 433MHz Wireless Remote Control Switch Module.User can connect output from 433MHz receiver to input interface at motor drive module.But 433MHz Wireless Remote Control Switch Module is not include in this package! User need to prepare in advance or purchase separately.
2>.Its communication distance will just be about 20~30 meter if control motor.Due to interference from motor.
3>.Inching Mode:Motor rotation when press button and stop rotation when release button.Two motor’s work status are independent of each other.
4>.Self-locking Mode:Motor rotation when press button and stop rotation when press button again.Two motor’s work status are independent of each other.
5>.Interlocking Mode:Motor 1 will stop when Motor 2 is working;Motor 2 will stop when Motor 1 is working;Two motor’s work status are not independent.
6>.When changing the direction of rotation of the motor, please be sure to wait for the motor to completely stop,otherwise the module will be damaged due to excessive current.
7>.More information please refer to data sheet about 433MHz Wireless Remote Control Switch Module.
6.Note:
1>.When changing the direction of rotation of the motor, please be sure to wait for the motor to completely stop,otherwise the module will be damaged due to excessive current;
2>.Please don’t short circuit;
3>.Reverse connection protection is not supported;
4>.433MHz Wireless Remote Control Switch Module is not include in this package! User need to prepare in advance or purchase separately.
7.Application:
1>.Wireless remote control car;
2>.Ship model;
3>.Model airplane;
4>.Wireless temperature and humidity detection;
5>.Intelligent data collection;
6>.Motor drive.
8.Package:
1>.1pc ZK-5AD 5A Dual Motor Drive Module;

Features:
Support sampling frequency (kHz):8 / 11.025 / 12 / 16 / 22.05 / 24 / 32 / 44.1 / 48
Support file format:MP3/WAV
Support Micro SD card, Micro SDHC Card
30 class adjustable volume
UART TTL serial control playback mode, baud rate is 9600bps
Power supply can be 3.2 ~ 5.2VDC
Size:43mm x 25mm

BT201 5.0 Bluetooth module is a 4-in-1 single chip that supports bluetooth, usb flash drive and TF card. The highlight of the chip is that it supports lossless music playback, simple and clear serial port control function, BLE pass-through function and SPP pass-through function.It greatly reduces the development difficulty of embedded bluetooth in other products
Function introduction
1. Support bluetooth audio, BLE data transmission, U disk playback, TF card playback, SPIFLASH. hold MP3, WAV, FLAC, APE format decoding
2. Serial port AT command control.Support to modify baud rate to modify bluetooth name, specify device playback, and cell phone data passthrough
3, support BLE and SPP dual-mode data transmission, at the same time can play bluetooth audio, no conflict
4, support bluetooth call, multi-button control, last music, next music, play pause, tuning volume and other simple functions
5, support to get the full file name of play serial port specified path play, loop or single play
6. Support 128KBS recording function.Recording to TF card or U disk, recording delete playback and so on
7, rich use information, reference PCB, use video tutorial, mobile phone passthrough video tutorial, serial port AT video tutorial
8. Super simple peripheral,5 capacitors can be completed
9, easy docking already existing APP, or develop WeChat applet.Mobile phone control
10. We have made the functional firmware ourselves, which is very flexible. Even if there is a need that cannot be met, we can communicate and develop it
Functional description(Support AT serial command control)
1,16 bit Stereo dac with headphone amplifier, SNR > = 95 db
2, no crystal vibration load capacitor, the chip automatically generates bluetooth MAC address, no rolling burning
Music features:
1, support MP3, WAV, WMA, FLAC, AAC, APE format decoding
2. The maximum support is 128G usb flash drive and TF card, supporting breakpoint memory and track memory functions
Bluetooth features:
1, support bluetooth audio transmission connection mobile phone transmission music, support play pause, up and down switch
2, support bluetooth call function, users can set to cancel, support receive, hang up, dial back, refuse to receive and other functions
3. Bluetooth version 5.0 supports HFP/A2 DP/AVRCP/HSP/ GAVDP/IoP/SPP/BLE with a distance of around 10M
4. The frequency range of Class24dbM is 2.4g -- 2.480g
5. Support pass-through function of BLE. Connect "bt201-ble" to support SPP pass-through function

Features:
DIY Mobile Power Supply, 5V output for charging Phone, MP3, MP4, PSP, etc
Modules nature: non-isolated Buck
With Overcurrent Protection
Rectification: Non-synchronous rectification
Note: Please connect right as the printed : N-,IN ,OUT-,OUT ,or else the Module will be burned
Specifications:
Input voltage: DC 7- 24V
Output voltage: DC 5V
Output current: 3A (max)
Conversion efficiency: 96% (MAX)
Switching frequency: 340KHz
Output ripple: 30mV (max)
Load regulation: ± 0.5%
Voltage regulation: ± 2.5%

Features
The module uses Taiwan-made high-quality control chip, externally expanded ultra-low on-resistance MOSFET, ultra-high efficiency (up to 95% ), and can reach 25W without heat dissipation
This module uses the original Sanyo filter capacitor with low ESR, and at the same time adds a level of LC filter unit in the rear stage, which can make the ripple voltage as low as 40mV, which can be applied to most occasions!
Scope of application
Battery regulator, you can use a 12V battery (10-14V) to output a regulated voltage at 12V.
Solar charging voltage stabilizes, you can stabilize the fluctuating voltage of the solar battery, and can charge the battery to avoid battery overshoot.
Power supply for your electronic equipment, ultra-wide voltage buck-boost design, wide applicable voltage range.
The pre-stage power supply of the system is designed with ultra-wide voltage buck-boost and a wide applicable voltage range.
Instructions/Precautions
This module is an adjustable automatic buck-boost module, and the output voltage can be changed by adjusting the blue adjustable resistor on the module.
The IN- (input negative), IN (input positive), OUT- (output negative), and OUT (output positive) marked on the module must be connected correctly, otherwise the module may be damaged.
This module has a short-circuit protection function. If the output is short-circuited, the system will lock the output to 0. Eliminate the short-circuit and re-power on to re-output.

Spezifikation:
Modell: GT-24
Modul größe: 30,3 × 14,5mm (einschließlich PCB antenne)
Betriebs frequenz b und: 2,4 GHz ~ 2,525 GHz (einstellbar, 1 MHz schritt)
Interface modus: 1*8*1,27mm/2*4*2,54mm (Die patch kann auch verwendet werden mit die universal board und DuPont linie)
Versorgung spannung: DC 2,0-3,6 V (Hinweis: über 3,6 V, die modul dauerhaft beschädigt werden)
Kommunikation ebene: 0.7VCC ~ 3,3 V (VCC bezieht sich auf die modul versorgung spannung)
Gemessen abstand: 1000 m (klar offenen raum, maximale leistung, höhe 2 m, 250 k luft geschwindigkeit)
Übertragen power: 4 stufen einstellbare (maximale 20dBm, ca.. 100 mW bei maximale leistung)
Luft geschwindigkeit 250 k ~ 2 Mbps/3 stufen einstellbare (250 kbps, 1 Mbps, 2 Mbps)
Abschaltung strom: ca.. 30uA (test zustand: CE = 0, power-down modus, VDD = 3,0 V)
Emissions strom: über 90mA (power versorgung kapazität muss größer als 250 m)
Empfangen strom: über 20mA
Antenne form: PCB antenne/ipex träger antenne
Kommunikation interface: SPI maximale geschwindigkeit bis zu 10 Mbps
Übertragen länge: Einzel paket 1 ~ 32 bytes Ebene 3 FIFO
Empfangen länge: Einzel paket 1 ~ 32 bytes Ebene 3 FIFO
RSSI unterstützung: Nicht unterstützt (nur einfache paket verlust statistiken sind unterstützt)
Empfangen empfindlichkeit:-94dBm @ 250kbp
Arbeits temperatur:-40 ~ 85 °C (industrie grade)
Lagerung temperatur:-40 ~ 125 °C (industrie grade)
Eigenschaften:
-Die GT-24 modul ist ein 2,4 GHz, 100 mW, hohe geschwindigkeit (bis zu 2 Mbps fluggeschwindigkeit), hohe stabilität, industrie grade wireless transceiver integrierte daten übertragung modul.
-Das modul kommt mit einem high-leistung PCB antenne, präzise impedanz passenden, und die nRF24L01P RF chip, die hat höhere zuverlässigkeit, mehr power ebenen, und mehr übertragung abstand und geringeren strom als die nRF24L01.
-Auch eingebaute RFX2401 power verstärker chip, eingebaute LNA, erhalt empfindlichkeit erhöht durch 10dBm, arbeiten in der ISM b und von 2,4 GHz ~ 2,5 GHz.
-Das modul hat ausreichende übertragen power, gute spektrale eigenschaften, kleine oberwellen, kleine kanal übersprechen, und ultra-kleine größe. Es ist ein modell von alle Murata raw materialien und industrie grade standards.
-Es hat eine standard abstand von 2,54mm in-line interface und 1,27mm patch interface, die ist bequem für benutzer zu verwenden mit verschiedenen schaltungen.
-Die GT--24 modul kommt auch mit einem eingebauten PCB antenne und eine ipx träger externe antenne, die stark verbessert die modul der freies eigenschaften und gibt dem benutzer die größte freiheit.

Description
Module package (with FLASH memory and peripheral circuits) have DIP16, DIP28, chip packaging has DIP18, SSOP20 and LQFP32 form;
According to external or built-in SPI-Flash's different, play different duration, support 2M ~ 32Mbit of SPI-Flash Memory;
Embedded DSP audio processor speed, fast processing speed;
Built 13Bit/DA converter, and 12Bit/PWM output, good sound quality;
PWM output can directly drive 0.5W/8Ω speakers, push-pull current abundant;
Support DAC / PWM output of two ways;
Support for loading WAV audio formats;
By professional PC operating software, any combination of voice, silence can be inserted, insert the mute does not take up memory capacity, a voice repeated calls have been loaded to multiple addresses;
USB download mode, support for online download / offline download; WT588D voice chip, even in the case of electricity, will also be able to download the data to the normal SPI-Flash;
Supports MP3 control mode, control mode button, 3 × 8 key combination control mode, parallel control mode, front-line serial control mode, three-wire serial control mode, and three-wire serial control I / O port expansion output mode;
Three-wire serial control mode to control the three-wire serial I / O port expansion only to send the data output mode can be switched. Even after switching to the final before switching into a working state after switching mode;
Arbitrary voice playback status display BUSY signal output;
Anti-interference, and can be used in industrial applications;
Section 220 can control the address bits, a single address can be loaded up to 128 bits of voice, the voice within the address bit combination play;
Support the loaded audio player audition;
Voice playback stops immediately enter the sleep mode, the chip to a complete stop state;
15 kinds of key control mode, any key can be set to any of the control mode;
Supporting WT588D VoiceChip PC software, the interface is simple, easy to use. The play can greatly limit the functionality WT588D voice chip;
Simple microcontroller written in a way to get rid of the past, the complicated assembly of thinking;
A single chip to support multiple external memory;
Up to 500 segments can be loaded for editing audio;
Into the quiet time range 10ms ~ 25min;
Chip reset time 5ms;
Voltage DC2.8V ~ 5.5V;
Static sleep current of less than 10uA;
Support load 6K ~ 22KHz audio sampling rate

Description
1. The module uses genuine high-quality relays, the maximum load of the normally open interface: AC 250V/10A, DC 30V/10A;
2. Adopt SMD optocoupler isolation, strong driving ability, stable performance; trigger current 5mA;
3. The working voltage of the module has 5V, 9, 12V, 24V to choose from;
4. Each channel of the module can be triggered by jumpers to set high or low level;
5. Fault-tolerant design, even if the control line is broken, the relay will not act;
6. Power indicator (green), 4-way relay status indicator (red)
7. The interface design is user-friendly, all interfaces can be directly connected through the terminal block, which is very convenient
8. Module size: 73mm * 50mm* 18.5mm (length * width * height)
9. There are 4 fixing bolt holes, the hole is 3.1mm, and the spacing is 67mm*44.5mm
Two module interface:
1. DC : connect to the positive pole of the power supply (the voltage is according to the requirements of the relay, there are 5V.9V.12V and 24V options)
2. DC-: Connect to the negative pole of the power supply
3. IN1-IN4: According to the setting of each channel, the corresponding relay can be controlled at high or low level.
Relay output terminal: There are 12-wire interface, all interfaces can be directly connected to lead, which is convenient for users to use
1. NO1--NO4: The relay is normally open interface, the relay is suspended before being closed, and it is short-circuited with COM after being closed.
2. COM1--COM4 relay common interface
3. NC1--NC4: Normally closed interface of the relay. Before the relay is closed, it is short-connected with COM, and it is suspended after being closed.
High and low level trigger selection terminal:
1.S1-S4 are the high and low level trigger selections of relay 1 to 4 in sequence;
2. When com and low are shorted, the corresponding relay is triggered at low level, and when com is shorted with high, it is triggered at high level

@past
PCF8591 is a single-supply, low-power 8 COMS-type A / D, D / A converter chip, it has a 4-channel analog input channels, all the way to the analog output channels and an I2C bus interface. The device I2C slave address lower three chips A0, A1 and A2, three address pins decision so without adding any hardware with an I2C bus can connect up to eight devices of the same type. The device has a multi-channel analog input, on-chip track-and-hold, 8 A / D conversion and eight D / A conversion functions. A / D and D / A conversion rate determined by a maximum transfer rate of the I2C bus.
Characteristics:
Single power supply;
The normal operating supply voltage range of 2.5V ~ 6V;
Completed through the I2C bus data input / output;
Device address is determined by three address pins;
The sampling frequency is decided by the I2C bus transfer rate;
The 4 Road analog inputs programmable as single-ended or differential inputs;
Can be configured to convert the channel number is automatically increased functionality;
The analog voltage range of VSS ~ VDD;
On-chip track-and-hold function;
8-bit successive approximation A / D conversion;
Multiplication with one analog output D / A converter.
Module Description:
Module chip with PCF8591T, SMD package
Support 4 channel analog voltage the acquisition signal input (voltage input range of 0 - 5V)
Module with power indicator 1 (D1)
A module with DA output indicator (D2), when the DA output voltage reaches a certain value, the indicator light, the higher the voltage value, the brighter lights
The module integrates a Road 0 - 5V voltage input acquisition (through the blue and white potentiometer to adjust the input voltage)
The module Integrated Road the photoresistor (Model: 5537), ambient light intensity by AD collection
Module integrated way thermistor (Model: MF58) ambient temperature by AD collection
PCB size: 48mm * 25mm * 1.6mm
Quality panel corners arc design will not scratch your hand. With a positioning hole aperture 3.1mm, easy to use 3mm Tongzhu fixed
Wiring instructions:
Left 4 pin:
SDA IIC data interface connected microcontroller IO ports (P2.0)
SCL IIC clock interface connected microcontroller IO port (P2.1)
The cathode interface external VCC power 3.3/5V positive power supply
GND Negative interface external 3.3/5V negative supply
Right 8 pin :
AOUT module DA output port
AIN3 analog input signal interface
AIN2 analog input signal interface
AIN1 analog input signal interface
AIN0 analog input signal interface 0
The INPUT3 analog input signal interface 3
INPUT2 thermistor signal input port is connected to
The INPUT1 has photoresistor signal input port connected to the
INPUT0 is connected to the signal input port of the potentiometer

Description
Product name: 3 strings of 12.6V 40A lithium battery protection board
Charging voltage: DC 12.6V~13.6V
Continuous discharge current: Maximum 40A (If the heat dissipation environment is not good, please reduce the load current)
Continuous charging current: up to 20A
Balanced version Product size: 41*61*4mm
Enhanced version Product size: 41*55*4mm
Applicable options: suitable for a 4.2V lithium battery with a nominal voltage of 3.7V and a full charge
(Including 18650, 26650, polymer lithium battery), can be punched below 170W

Note 1: Successful drilling requires 3 10C-20C power batteries, or 6 5C-10C power batteries (recommended power battery models: sony vtc4, vtc4A, vtc5A, vtc6) OV and 12.6V cable, using 3 square millimeters of copper Wire or more (nickel sheet cannot be used)
Note 2: Connect 0V, 4.2V, 8.4V, 12.6V strictly according to the figure. Do not touch any components on the board when soldering wires. Don't short-circuit intentionally.
Note 3: When the battery is welded or charged for the first time, as long as the single battery exceeds 4.2V, the "430" resistor will heat and discharge (discharge to about 4.19V and stop heating). If the "430" resistor is heating up severely, please check whether it is connected to the wrong wire.
Product name: 4 series 14.8V 16.8V 40A lithium battery protection board
Charging voltage: DC 16.8V~17V
Continuous discharge current: Maximum 40A (If the heat dissipation environment is not good, please reduce the load current)
Continuous charging current: up to 20A
Scale version Product size: 45*60*4mm
Enhanced version Product size: 44*55*4mm
Applicable options: suitable for a 4.2V lithium battery with a nominal voltage of 3.7V and a full charge
(Including 18650, 26650, polymer lithium battery), can be punched below 170W

Note 1: The electric drill needs 3 15C-20C power batteries, or 6 10C-15C power batteries (normal 18650 cannot start the electric drill!!!).

Note 2: Wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V strictly according to the diagram, do not intentionally short-circuit.


Note 3: When using a brushed motor load, try to connect non-polar capacitors (withstand voltage above 25V, capacity 10uF-100uF) between the positive and negative poles of the motor to prevent reverse peaks of the motor. Disconnect the MOS tube.

Note 4: 4 sets of batteries are used in series. Please ensure the voltage of each set of batteries. If they are not the same, please fill up each set of batteries separately and then use them in series. In the discharge test, the battery pack with a faster voltage drop is an inferior battery.
Product name: 3S lithium battery protection board 60A enhanced version
(1) Product description: This product is used to charge and discharge three groups of lithium batteries in series, and each group can connect multiple lithium batteries in parallel. it can
Withstand continuous charging current 20A, continuous discharging current 40A, and instantaneous current below 80A. used
During this process, the heat dissipation conditions should be good. If the heat dissipation condition is not good, please reduce the current usage and do not let the board
The child has a noticeable sensation of heat. Overcharge protection, overdischarge protection, and overcurrent protection during charging and discharging
Protection, short circuit protection. This product can be used for electric drills, sprayers, LED lights, and low-power reversing.
Charge and discharge batteries for products such as transformers.
(2) Product parameters:
◆ Product model: HW-552;
◆ Size: 41*60*1mm;
Charging voltage: 12.6V-13V;
◆ Maximum working current: 60A (good heat dissipation conditions);
◆ Continuous charging current (upper limit): 20A;
◆ Continuous discharge current (upper limit): 40A;
◆ Overcurrent protection: 125A;.
◆ Overcharge detection: 12.8V (3 sets of batteries);
◆ Overcharge release: 12.3V (3 sets of batteries);
◆ Over-discharge detection: 2.4V (1 battery);
◆ Over-discharge release: 3.0V (1 battery);
◆ Short circuit protection: Yes;
◆ Working temperature: -40-- 85C;
◆ Storage conditions: -40-- 125C.

Description
Product name: 3 strings of 12.6V 40A lithium battery protection board
Charging voltage: DC 12.6V~13.6V
Continuous discharge current: Maximum 40A (If the heat dissipation environment is not good, please reduce the load current)
Continuous charging current: up to 20A
Balanced version Product size: 41*61*4mm
Enhanced version Product size: 41*55*4mm
Applicable options: suitable for a 4.2V lithium battery with a nominal voltage of 3.7V and a full charge
(Including 18650, 26650, polymer lithium battery), can be punched below 170W

Note 1: Successful drilling requires 3 10C-20C power batteries, or 6 5C-10C power batteries (recommended power battery models: sony vtc4, vtc4A, vtc5A, vtc6) OV and 12.6V cable, using 3 square millimeters of copper Wire or more (nickel sheet cannot be used)
Note 2: Connect 0V, 4.2V, 8.4V, 12.6V strictly according to the figure. Do not touch any components on the board when soldering wires. Don't short-circuit intentionally.
Note 3: When the battery is welded or charged for the first time, as long as the single battery exceeds 4.2V, the "430" resistor will heat and discharge (discharge to about 4.19V and stop heating). If the "430" resistor is heating up severely, please check whether it is connected to the wrong wire.
Product name: 4 series 14.8V 16.8V 40A lithium battery protection board
Charging voltage: DC 16.8V~17V
Continuous discharge current: Maximum 40A (If the heat dissipation environment is not good, please reduce the load current)
Continuous charging current: up to 20A
Scale version Product size: 45*60*4mm
Enhanced version Product size: 44*55*4mm
Applicable options: suitable for a 4.2V lithium battery with a nominal voltage of 3.7V and a full charge
(Including 18650, 26650, polymer lithium battery), can be punched below 170W

Note 1: The electric drill needs 3 15C-20C power batteries, or 6 10C-15C power batteries (normal 18650 cannot start the electric drill!!!).

Note 2: Wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V strictly according to the diagram, do not intentionally short-circuit.


Note 3: When using a brushed motor load, try to connect non-polar capacitors (withstand voltage above 25V, capacity 10uF-100uF) between the positive and negative poles of the motor to prevent reverse peaks of the motor. Disconnect the MOS tube.

Note 4: 4 sets of batteries are used in series. Please ensure the voltage of each set of batteries. If they are not the same, please fill up each set of batteries separately and then use them in series. In the discharge test, the battery pack with a faster voltage drop is an inferior battery.
Product name: 3S lithium battery protection board 60A enhanced version
(1) Product description: This product is used to charge and discharge three groups of lithium batteries in series, and each group can connect multiple lithium batteries in parallel. it can
Withstand continuous charging current 20A, continuous discharging current 40A, and instantaneous current below 80A. used
During this process, the heat dissipation conditions should be good. If the heat dissipation condition is not good, please reduce the current usage and do not let the board
The child has a noticeable sensation of heat. Overcharge protection, overdischarge protection, and overcurrent protection during charging and discharging
Protection, short circuit protection. This product can be used for electric drills, sprayers, LED lights, and low-power reversing.
Charge and discharge batteries for products such as transformers.
(2) Product parameters:
◆ Product model: HW-552;
◆ Size: 41*60*1mm;
Charging voltage: 12.6V-13V;
◆ Maximum working current: 60A (good heat dissipation conditions);
◆ Continuous charging current (upper limit): 20A;
◆ Continuous discharge current (upper limit): 40A;
◆ Overcurrent protection: 125A;.
◆ Overcharge detection: 12.8V (3 sets of batteries);
◆ Overcharge release: 12.3V (3 sets of batteries);
◆ Over-discharge detection: 2.4V (1 battery);
◆ Over-discharge release: 3.0V (1 battery);
◆ Short circuit protection: Yes;
◆ Working temperature: -40-- 85C;
◆ Storage conditions: -40-- 125C.

Description
Product name: 3 strings of 12.6V 40A lithium battery protection board
Charging voltage: DC 12.6V~13.6V
Continuous discharge current: Maximum 40A (If the heat dissipation environment is not good, please reduce the load current)
Continuous charging current: up to 20A
Balanced version Product size: 41*61*4mm
Enhanced version Product size: 41*55*4mm
Applicable options: suitable for a 4.2V lithium battery with a nominal voltage of 3.7V and a full charge
(Including 18650, 26650, polymer lithium battery), can be punched below 170W

Note 1: Successful drilling requires 3 10C-20C power batteries, or 6 5C-10C power batteries (recommended power battery models: sony vtc4, vtc4A, vtc5A, vtc6) OV and 12.6V cable, using 3 square millimeters of copper Wire or more (nickel sheet cannot be used)
Note 2: Connect 0V, 4.2V, 8.4V, 12.6V strictly according to the figure. Do not touch any components on the board when soldering wires. Don't short-circuit intentionally.
Note 3: When the battery is welded or charged for the first time, as long as the single battery exceeds 4.2V, the "430" resistor will heat and discharge (discharge to about 4.19V and stop heating). If the "430" resistor is heating up severely, please check whether it is connected to the wrong wire.
Product name: 4 series 14.8V 16.8V 40A lithium battery protection board
Charging voltage: DC 16.8V~17V
Continuous discharge current: Maximum 40A (If the heat dissipation environment is not good, please reduce the load current)
Continuous charging current: up to 20A
Scale version Product size: 45*60*4mm
Enhanced version Product size: 44*55*4mm
Applicable options: suitable for a 4.2V lithium battery with a nominal voltage of 3.7V and a full charge
(Including 18650, 26650, polymer lithium battery), can be punched below 170W

Note 1: The electric drill needs 3 15C-20C power batteries, or 6 10C-15C power batteries (normal 18650 cannot start the electric drill!!!).

Note 2: Wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V strictly according to the diagram, do not intentionally short-circuit.


Note 3: When using a brushed motor load, try to connect non-polar capacitors (withstand voltage above 25V, capacity 10uF-100uF) between the positive and negative poles of the motor to prevent reverse peaks of the motor. Disconnect the MOS tube.

Note 4: 4 sets of batteries are used in series. Please ensure the voltage of each set of batteries. If they are not the same, please fill up each set of batteries separately and then use them in series. In the discharge test, the battery pack with a faster voltage drop is an inferior battery.
Product name: 3S lithium battery protection board 60A enhanced version
(1) Product description: This product is used to charge and discharge three groups of lithium batteries in series, and each group can connect multiple lithium batteries in parallel. it can
Withstand continuous charging current 20A, continuous discharging current 40A, and instantaneous current below 80A. used
During this process, the heat dissipation conditions should be good. If the heat dissipation condition is not good, please reduce the current usage and do not let the board
The child has a noticeable sensation of heat. Overcharge protection, overdischarge protection, and overcurrent protection during charging and discharging
Protection, short circuit protection. This product can be used for electric drills, sprayers, LED lights, and low-power reversing.
Charge and discharge batteries for products such as transformers.
(2) Product parameters:
◆ Product model: HW-552;
◆ Size: 41*60*1mm;
Charging voltage: 12.6V-13V;
◆ Maximum working current: 60A (good heat dissipation conditions);
◆ Continuous charging current (upper limit): 20A;
◆ Continuous discharge current (upper limit): 40A;
◆ Overcurrent protection: 125A;.
◆ Overcharge detection: 12.8V (3 sets of batteries);
◆ Overcharge release: 12.3V (3 sets of batteries);
◆ Over-discharge detection: 2.4V (1 battery);
◆ Over-discharge release: 3.0V (1 battery);
◆ Short circuit protection: Yes;
◆ Working temperature: -40-- 85C;
◆ Storage conditions: -40-- 125C.

Description
Product name: 3 strings of 12.6V 40A lithium battery protection board
Charging voltage: DC 12.6V~13.6V
Continuous discharge current: Maximum 40A (If the heat dissipation environment is not good, please reduce the load current)
Continuous charging current: up to 20A
Balanced version Product size: 41*61*4mm
Enhanced version Product size: 41*55*4mm
Applicable options: suitable for a 4.2V lithium battery with a nominal voltage of 3.7V and a full charge
(Including 18650, 26650, polymer lithium battery), can be punched below 170W

Note 1: Successful drilling requires 3 10C-20C power batteries, or 6 5C-10C power batteries (recommended power battery models: sony vtc4, vtc4A, vtc5A, vtc6) OV and 12.6V cable, using 3 square millimeters of copper Wire or more (nickel sheet cannot be used)
Note 2: Connect 0V, 4.2V, 8.4V, 12.6V strictly according to the figure. Do not touch any components on the board when soldering wires. Don't short-circuit intentionally.
Note 3: When the battery is welded or charged for the first time, as long as the single battery exceeds 4.2V, the "430" resistor will heat and discharge (discharge to about 4.19V and stop heating). If the "430" resistor is heating up severely, please check whether it is connected to the wrong wire.
Product name: 4 series 14.8V 16.8V 40A lithium battery protection board
Charging voltage: DC 16.8V~17V
Continuous discharge current: Maximum 40A (If the heat dissipation environment is not good, please reduce the load current)
Continuous charging current: up to 20A
Scale version Product size: 45*60*4mm
Enhanced version Product size: 44*55*4mm
Applicable options: suitable for a 4.2V lithium battery with a nominal voltage of 3.7V and a full charge
(Including 18650, 26650, polymer lithium battery), can be punched below 170W

Note 1: The electric drill needs 3 15C-20C power batteries, or 6 10C-15C power batteries (normal 18650 cannot start the electric drill!!!).

Note 2: Wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V strictly according to the diagram, do not intentionally short-circuit.


Note 3: When using a brushed motor load, try to connect non-polar capacitors (withstand voltage above 25V, capacity 10uF-100uF) between the positive and negative poles of the motor to prevent reverse peaks of the motor. Disconnect the MOS tube.

Note 4: 4 sets of batteries are used in series. Please ensure the voltage of each set of batteries. If they are not the same, please fill up each set of batteries separately and then use them in series. In the discharge test, the battery pack with a faster voltage drop is an inferior battery.
Product name: 3S lithium battery protection board 60A enhanced version
(1) Product description: This product is used to charge and discharge three groups of lithium batteries in series, and each group can connect multiple lithium batteries in parallel. it can
Withstand continuous charging current 20A, continuous discharging current 40A, and instantaneous current below 80A. used
During this process, the heat dissipation conditions should be good. If the heat dissipation condition is not good, please reduce the current usage and do not let the board
The child has a noticeable sensation of heat. Overcharge protection, overdischarge protection, and overcurrent protection during charging and discharging
Protection, short circuit protection. This product can be used for electric drills, sprayers, LED lights, and low-power reversing.
Charge and discharge batteries for products such as transformers.
(2) Product parameters:
◆ Product model: HW-552;
◆ Size: 41*60*1mm;
Charging voltage: 12.6V-13V;
◆ Maximum working current: 60A (good heat dissipation conditions);
◆ Continuous charging current (upper limit): 20A;
◆ Continuous discharge current (upper limit): 40A;
◆ Overcurrent protection: 125A;.
◆ Overcharge detection: 12.8V (3 sets of batteries);
◆ Overcharge release: 12.3V (3 sets of batteries);
◆ Over-discharge detection: 2.4V (1 battery);
◆ Over-discharge release: 3.0V (1 battery);
◆ Short circuit protection: Yes;
◆ Working temperature: -40-- 85C;
◆ Storage conditions: -40-- 125C.

Description
Product name: 3 strings of 12.6V 40A lithium battery protection board
Charging voltage: DC 12.6V~13.6V
Continuous discharge current: Maximum 40A (If the heat dissipation environment is not good, please reduce the load current)
Continuous charging current: up to 20A
Balanced version Product size: 41*61*4mm
Enhanced version Product size: 41*55*4mm
Applicable options: suitable for a 4.2V lithium battery with a nominal voltage of 3.7V and a full charge
(Including 18650, 26650, polymer lithium battery), can be punched below 170W

Note 1: Successful drilling requires 3 10C-20C power batteries, or 6 5C-10C power batteries (recommended power battery models: sony vtc4, vtc4A, vtc5A, vtc6) OV and 12.6V cable, using 3 square millimeters of copper Wire or more (nickel sheet cannot be used)
Note 2: Connect 0V, 4.2V, 8.4V, 12.6V strictly according to the figure. Do not touch any components on the board when soldering wires. Don't short-circuit intentionally.
Note 3: When the battery is welded or charged for the first time, as long as the single battery exceeds 4.2V, the "430" resistor will heat and discharge (discharge to about 4.19V and stop heating). If the "430" resistor is heating up severely, please check whether it is connected to the wrong wire.
Product name: 4 series 14.8V 16.8V 40A lithium battery protection board
Charging voltage: DC 16.8V~17V
Continuous discharge current: Maximum 40A (If the heat dissipation environment is not good, please reduce the load current)
Continuous charging current: up to 20A
Scale version Product size: 45*60*4mm
Enhanced version Product size: 44*55*4mm
Applicable options: suitable for a 4.2V lithium battery with a nominal voltage of 3.7V and a full charge
(Including 18650, 26650, polymer lithium battery), can be punched below 170W

Note 1: The electric drill needs 3 15C-20C power batteries, or 6 10C-15C power batteries (normal 18650 cannot start the electric drill!!!).

Note 2: Wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V strictly according to the diagram, do not intentionally short-circuit.


Note 3: When using a brushed motor load, try to connect non-polar capacitors (withstand voltage above 25V, capacity 10uF-100uF) between the positive and negative poles of the motor to prevent reverse peaks of the motor. Disconnect the MOS tube.

Note 4: 4 sets of batteries are used in series. Please ensure the voltage of each set of batteries. If they are not the same, please fill up each set of batteries separately and then use them in series. In the discharge test, the battery pack with a faster voltage drop is an inferior battery.
Product name: 3S lithium battery protection board 60A enhanced version
(1) Product description: This product is used to charge and discharge three groups of lithium batteries in series, and each group can connect multiple lithium batteries in parallel. it can
Withstand continuous charging current 20A, continuous discharging current 40A, and instantaneous current below 80A. used
During this process, the heat dissipation conditions should be good. If the heat dissipation condition is not good, please reduce the current usage and do not let the board
The child has a noticeable sensation of heat. Overcharge protection, overdischarge protection, and overcurrent protection during charging and discharging
Protection, short circuit protection. This product can be used for electric drills, sprayers, LED lights, and low-power reversing.
Charge and discharge batteries for products such as transformers.
(2) Product parameters:
◆ Product model: HW-552;
◆ Size: 41*60*1mm;
Charging voltage: 12.6V-13V;
◆ Maximum working current: 60A (good heat dissipation conditions);
◆ Continuous charging current (upper limit): 20A;
◆ Continuous discharge current (upper limit): 40A;
◆ Overcurrent protection: 125A;.
◆ Overcharge detection: 12.8V (3 sets of batteries);
◆ Overcharge release: 12.3V (3 sets of batteries);
◆ Over-discharge detection: 2.4V (1 battery);
◆ Over-discharge release: 3.0V (1 battery);
◆ Short circuit protection: Yes;
◆ Working temperature: -40-- 85C;
◆ Storage conditions: -40-- 125C.

Description
Product name: 3 strings of 12.6V 40A lithium battery protection board
Charging voltage: DC 12.6V~13.6V
Continuous discharge current: Maximum 40A (If the heat dissipation environment is not good, please reduce the load current)
Continuous charging current: up to 20A
Balanced version Product size: 41*61*4mm
Enhanced version Product size: 41*55*4mm
Applicable options: suitable for a 4.2V lithium battery with a nominal voltage of 3.7V and a full charge
(Including 18650, 26650, polymer lithium battery), can be punched below 170W

Note 1: Successful drilling requires 3 10C-20C power batteries, or 6 5C-10C power batteries (recommended power battery models: sony vtc4, vtc4A, vtc5A, vtc6) OV and 12.6V cable, using 3 square millimeters of copper Wire or more (nickel sheet cannot be used)
Note 2: Connect 0V, 4.2V, 8.4V, 12.6V strictly according to the figure. Do not touch any components on the board when soldering wires. Don't short-circuit intentionally.
Note 3: When the battery is welded or charged for the first time, as long as the single battery exceeds 4.2V, the "430" resistor will heat and discharge (discharge to about 4.19V and stop heating). If the "430" resistor is heating up severely, please check whether it is connected to the wrong wire.
Product name: 4 series 14.8V 16.8V 40A lithium battery protection board
Charging voltage: DC 16.8V~17V
Continuous discharge current: Maximum 40A (If the heat dissipation environment is not good, please reduce the load current)
Continuous charging current: up to 20A
Scale version Product size: 45*60*4mm
Enhanced version Product size: 44*55*4mm
Applicable options: suitable for a 4.2V lithium battery with a nominal voltage of 3.7V and a full charge
(Including 18650, 26650, polymer lithium battery), can be punched below 170W

Note 1: The electric drill needs 3 15C-20C power batteries, or 6 10C-15C power batteries (normal 18650 cannot start the electric drill!!!).

Note 2: Wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V strictly according to the diagram, do not intentionally short-circuit.


Note 3: When using a brushed motor load, try to connect non-polar capacitors (withstand voltage above 25V, capacity 10uF-100uF) between the positive and negative poles of the motor to prevent reverse peaks of the motor. Disconnect the MOS tube.

Note 4: 4 sets of batteries are used in series. Please ensure the voltage of each set of batteries. If they are not the same, please fill up each set of batteries separately and then use them in series. In the discharge test, the battery pack with a faster voltage drop is an inferior battery.
Product name: 3S lithium battery protection board 60A enhanced version
(1) Product description: This product is used to charge and discharge three groups of lithium batteries in series, and each group can connect multiple lithium batteries in parallel. it can
Withstand continuous charging current 20A, continuous discharging current 40A, and instantaneous current below 80A. used
During this process, the heat dissipation conditions should be good. If the heat dissipation condition is not good, please reduce the current usage and do not let the board
The child has a noticeable sensation of heat. Overcharge protection, overdischarge protection, and overcurrent protection during charging and discharging
Protection, short circuit protection. This product can be used for electric drills, sprayers, LED lights, and low-power reversing.
Charge and discharge batteries for products such as transformers.
(2) Product parameters:
◆ Product model: HW-552;
◆ Size: 41*60*1mm;
Charging voltage: 12.6V-13V;
◆ Maximum working current: 60A (good heat dissipation conditions);
◆ Continuous charging current (upper limit): 20A;
◆ Continuous discharge current (upper limit): 40A;
◆ Overcurrent protection: 125A;.
◆ Overcharge detection: 12.8V (3 sets of batteries);
◆ Overcharge release: 12.3V (3 sets of batteries);
◆ Over-discharge detection: 2.4V (1 battery);
◆ Over-discharge release: 3.0V (1 battery);
◆ Short circuit protection: Yes;
◆ Working temperature: -40-- 85C;
◆ Storage conditions: -40-- 125C.

escription
A functional characteristic

1. The photoresistor is used to sense the intensity of light, and it comes with genuine high-quality relays, which can directly control AC or DC loads.

Maximum load capacity of normally open interface: AC 0V-250V/10A, DC 0V--30V/10A;
2
, The sensitivity can be adjusted by the potentiometer, and the threshold of the start relay can be set by adjusting the potentiometer. When it is darker than this threshold, the module relay is closed, and when it is brighter than this threshold, the relay is released;

Intelligent adjustment design, when the relay is activated, automatically fine-tune the action threshold, which solves the problem of repeated actions of the critical value;
4. The module has the function of anti-reverse connection, and the reverse connection of the power supply will not damage the module;
5. Equipped with power indicator (red) and relay status indicator (blue)
6. There are 4 fixing bolt holes for easy installation;
7. Module size:
5.0cm*3.0cm*1.8cm;




Two instructions for use

1. The photoresistor module is sensitive to ambient light and is generally used to detect changes in the brightness of the ambient light;

2. When the module's ambient light is darker than the set threshold, the relay is closed, and the common end is connected to the normally open end (disconnected from the normally closed end). When the ambient light is brighter than the set threshold, the relay is turned off, and the common end Disconnect with the normally open terminal (connect with the normally closed terminal);

3. The three ports of common, normally open, and normally closed are equivalent to a dual-control switch. When the relay coil is energized, the common end and the normally open end are connected, and when there is no power, the common end and the normally closed end are connected;
Three electrical parameters

Working current: less than 90mA at 5V (less than 5mA when the relay is not operating)

Less than 50mA at 12V (less than 5mA when the relay is not operating)

Less than 30mA at 24V (less than 5mA when the relay is not operating)

Working temperature: recommended -20℃—60℃ (limit working temperature range -30℃—70℃)

Load capacity: the maximum load capacity of the relay normally open port: DC 0-30V/10A, AC 0-250V/10A

Maximum load capacity of relay normally closed port: DC 0-28V/10A, AC 0-125V/10A

escription
A functional characteristic

1. The photoresistor is used to sense the intensity of light, and it comes with genuine high-quality relays, which can directly control AC or DC loads.

Maximum load capacity of normally open interface: AC 0V-250V/10A, DC 0V--30V/10A;
2
, The sensitivity can be adjusted by the potentiometer, and the threshold of the start relay can be set by adjusting the potentiometer. When it is darker than this threshold, the module relay is closed, and when it is brighter than this threshold, the relay is released;

Intelligent adjustment design, when the relay is activated, automatically fine-tune the action threshold, which solves the problem of repeated actions of the critical value;
4. The module has the function of anti-reverse connection, and the reverse connection of the power supply will not damage the module;
5. Equipped with power indicator (red) and relay status indicator (blue)
6. There are 4 fixing bolt holes for easy installation;
7. Module size:
5.0cm*3.0cm*1.8cm;




Two instructions for use

1. The photoresistor module is sensitive to ambient light and is generally used to detect changes in the brightness of the ambient light;

2. When the module's ambient light is darker than the set threshold, the relay is closed, and the common end is connected to the normally open end (disconnected from the normally closed end). When the ambient light is brighter than the set threshold, the relay is turned off, and the common end Disconnect with the normally open terminal (connect with the normally closed terminal);

3. The three ports of common, normally open, and normally closed are equivalent to a dual-control switch. When the relay coil is energized, the common end and the normally open end are connected, and when there is no power, the common end and the normally closed end are connected;
Three electrical parameters

Working current: less than 90mA at 5V (less than 5mA when the relay is not operating)

Less than 50mA at 12V (less than 5mA when the relay is not operating)

Less than 30mA at 24V (less than 5mA when the relay is not operating)

Working temperature: recommended -20℃—60℃ (limit working temperature range -30℃—70℃)

Load capacity: the maximum load capacity of the relay normally open port: DC 0-30V/10A, AC 0-250V/10A

Maximum load capacity of relay normally closed port: DC 0-28V/10A, AC 0-125V/10A

escription
A functional characteristic

1. The photoresistor is used to sense the intensity of light, and it comes with genuine high-quality relays, which can directly control AC or DC loads.

Maximum load capacity of normally open interface: AC 0V-250V/10A, DC 0V--30V/10A;
2
, The sensitivity can be adjusted by the potentiometer, and the threshold of the start relay can be set by adjusting the potentiometer. When it is darker than this threshold, the module relay is closed, and when it is brighter than this threshold, the relay is released;

Intelligent adjustment design, when the relay is activated, automatically fine-tune the action threshold, which solves the problem of repeated actions of the critical value;
4. The module has the function of anti-reverse connection, and the reverse connection of the power supply will not damage the module;
5. Equipped with power indicator (red) and relay status indicator (blue)
6. There are 4 fixing bolt holes for easy installation;
7. Module size:
5.0cm*3.0cm*1.8cm;




Two instructions for use

1. The photoresistor module is sensitive to ambient light and is generally used to detect changes in the brightness of the ambient light;

2. When the module's ambient light is darker than the set threshold, the relay is closed, and the common end is connected to the normally open end (disconnected from the normally closed end). When the ambient light is brighter than the set threshold, the relay is turned off, and the common end Disconnect with the normally open terminal (connect with the normally closed terminal);

3. The three ports of common, normally open, and normally closed are equivalent to a dual-control switch. When the relay coil is energized, the common end and the normally open end are connected, and when there is no power, the common end and the normally closed end are connected;
Three electrical parameters

Working current: less than 90mA at 5V (less than 5mA when the relay is not operating)

Less than 50mA at 12V (less than 5mA when the relay is not operating)

Less than 30mA at 24V (less than 5mA when the relay is not operating)

Working temperature: recommended -20℃—60℃ (limit working temperature range -30℃—70℃)

Load capacity: the maximum load capacity of the relay normally open port: DC 0-30V/10A, AC 0-250V/10A

Maximum load capacity of relay normally closed port: DC 0-28V/10A, AC 0-125V/10A

Description
DHT Pro Shield for D1 mini DHT22 Single-bus Digital Temperature and Humidity Sensor
Technical specifications:
Temperature: 40～80°(0.5°)
Humidity: relative humidity (RH 0-99.9±2%
Shipping list:
1. Long female needle X2
2. Short female needle X2
3. Normal female needle Xc2
4.DHT Pro Shield X1

Description
Screen Size: 64x48 pixels (0.66” Across)
Operating Voltage: 3.3V
Driver IC: SSD1306
Interface: IIC(I2C)
IIC Address: 0x3C or 0x3D

Module Description:
1, original CP2102 chip, generate the COM after install the driver.
2, standard MICRO MINI - USB line input by computer USB interface, with 3.3 V and 5 V voltage output power
3, with self recovery fuse.In the case of accidental short circuit, which can effectively protect your downloader and computer USB port
4 send and receive, onboard status indicator lights, lights, right after install the driver state will normally on lights, transceiver indicator light will flash, when communication with LED lights.
5, support from 300 BPS baud rate between ~ 1 MBPS
6, communication format support: 1) 5,6,7,8 bits of data;2) support 1,1.5, 2 stop bits.3) odd, even, mark, space, none
7, support operating system: Windows vista/xp / 98/8.1/7, Mac OS X/OS - 9, Linux
8, USB interface for MICRO MINI USB
9, SMD components welding for formal company, stable quality, beautiful appearance
10, with DTR trigger signal output, can be directly to the arduino pro mini ATMEGA328P arduino mainboard download program communication, etc.
11, module size: 16 mm * 20 mm super small.

Features:
1. The embedded USB transceiver, without external circuit
2. It contains the clock circuit, without an external circuit
3. Reset circuit embedded on electricity
4. Output voltage regulation can be within 3.3 V voltage
5. Accord with the requirement of USB2.0 specification
6. SUSPEND pin support USB state hung
7. Asynchronous serial data bus controller interface compatible with all shake hands and modulation signal
8. Support data format for the data of 8, 1, 2, and stop bit parity bit
9. The connotation of the 512 - byte receive buffer and 512 words

Product Description
With excellent performance ASIC chip function generator ICL8038, add a small amount of resistive and capacitive components, can produce sine, triangle and square wave, and the frequency of the signal, duty cycle, adjustable distortion sine wave.
Model: ICL8038
Input 12V DC
Frequency range 50-5KHz,
Size:6cm*4.5cm*0.2cm
Weight:26g

Notice:
Requires a certain DIY ability, you need to weld the kit yourself

Description:
ICL8038 pin functions:
1 foot, 12 foot: sine waveform adjusting terminal;
2 foot: sine wave output;
3 foot: triangle wave output;
4 foot, 5 foot: the frequency and duty cycle (or waveform asymmetry) adjustment;
6 foot: V , the positive power supply;
7 foot: offset; 8 foot: frequency adjustment input terminal;
9 foot: square wave output.
This is an open collector output terminal, work should take a load resistor to the corresponding positive power supply terminal from the pin, to get a TTL-compatible square-wave output, the load resistance must be connected to 5V power supply;
10 foot: timing capacitor terminal;
11 foot: V-, negative power supply terminal or the ground. Use positive and negative power supply, 11 feet to the negative supply, the output waveform are symmetrical with respect to 0V; use a single positive power supply, 11 feet grounded, the output waveform is unipolar, uniform voltage is VCC / 2;
13 feet, 14 Feet: Empty foot.
The kits are designed for a frequency range is 50-5KHz, two bands with a switch S to switch, RP1 is the frequency adjustment, RP2 is the duty cycle adjustment, RP3 is a sine wave distortion adjustment. Circuit uses 12V single power supply, input from the X1; X2, X3 is a waveform output side, you can use oscilloscope to observe three output waveforms.


Package Included:
1 set function signal generator module electronic kit

Features:
Sound quality is very good by using this module.
Mono digital audio power amplifier chip.
30W output and low power consumption.
Applicable speaker impedance: 4/6/8 ohm(8 ohm is the best).

Specifications:
Amplifier Chip: TPA3110
Working Voltage: DC 8-26V
Output Power: 1*30W
Applicable Speaker Impedance: 4/6/8 ohm(8 ohms Best)
PCB Board Size: 42 * 30mm / 1.65 * 1.18in
Weight: 10g / 0.35oz

Package List:
1 * TPA3110 PBTL Mono Amplifier Board

Product Description
Description of 2 series lithium battery boost charging board
The 2 series lithium battery boost charging board is a double link series lithium battery synchronous boost charging module with high integration and high reliability. The charging efficiency is 94% at the input voltage of 5V, bat voltage 8.4v and charging current of 1.2A. Charging integrates various protection functions: input overvoltage, input undervoltage, output overvoltage, output short circuit, chip over temperature, and maximum charging time of 24 hours.
Parameter function description
1. working range of input voltage: 4.6v-5.5v
2.5v/2a input synchronous boost charging
3. input adaptive charging
4. support two 4.2V batteries
5. Ed displays the charging status, and supports the display of two color lights
6. self contained trickle / constant current / constant voltage charging mode
7. 24 hour time out protection for charging
8. output over current, over voltage and short circuit protection
9. input over voltage and undervoltage protection
10. input voltage withstand voltage 13V
11. OTP over temperature protection
12. size: 28mm * 17mm

Description
MOSFET is an electronic device with good switching characteristics, which is widely used in circuits that require electronic switches, such as switching power supplies and motor drives, and lighting dimming. Relay is another module with switching characteristics that everyone is very familiar with, but because the working principle of relay is generally to achieve the purpose of opening and closing by mechanical contacts, this will inevitably lead to a very short switching time, the relay Unable to work, in addition, the banging sound made by the contact switch is also an annoying thing in some situations.

The 4-way MOSFET switch we designed can provide up to 4 sets of electronic switches, which are used to control different circuit modules. Affected by the working principle of MOSFET, the electronic building blocks can only be used to control DC circuits, such as DC LED screens, etc., and are not suitable for the control of AC circuits. In extreme cases, the MOSFET switch can be used to control a 100V/33A DC circuit, but the minimum DC voltage for control is recommended not to be less than 9V.

In the circuit connection, the connection of the controlled end is slightly more troublesome. Take the control of a 12V LED strip as an example, first connect the power supply between the positive pole ( ) and the negative pole (-);

Then connect the positive pole of the LED strip to the positive pole ( ) of the module, and connect the negative pole of the LED strip to switch 1 (S1);

If there are other LED strips that need to be controlled, you only need to connect the positive pole of the LED strip to the positive pole ( ) of the module, and the negative pole of the LED strip is connected to switch 2 (S2), switch 3 (S3), and switch in turn. 4 (S4) on;

The connection of the control terminal is much simpler. We only need to connect the corresponding control port to the Arduino sensor expansion board through the sensor cable, and then the 12V LED strips can be controlled by the Arduino. In the experiment, we connected two LED strips.

The test code is as follows:

int s1Pin = 6;
int s2Pin = 7;

void setup() {
pinMode(s1Pin, OUTPUT);
pinMode(s2Pin, OUTPUT);
}

void loop() {
int i;
digitalWrite(s1Pin, HIGH);
digitalWrite(s2Pin, HIGH);
delay(500);

digitalWrite(s1Pin, LOW);
digitalWrite(s2Pin, LOW);
delay(500);
for (i = 0; i <10; i ) {
digitalWrite(s1Pin, HIGH);
delay(500);
digitalWrite(s1Pin, LOW);
delay(500);
}
for (i = 0; i <100; i ) {
digitalWrite(s2Pin, HIGH);
delay(50);
digitalWrite(s2Pin, LOW);
delay(50);
}
}

Features:
Product size: 50*26*15mm
Propeller diameter: 75mm
Working voltage: 5V
L9110 drive, can control the positive and negative with the installation hole, compatible with the steering wheel of the steering gear to control the high quality propeller, high efficiency. It can easily blow out the lighter flame of 20cm and can be used for the production of fire fighting robot.
Module function test:
Hardware requirements
Controller × 1
USB data cable × 1
9110 fan module × 1
The module is connected to the development board:
The VCC of the module is connected to 5V, GND is connected to GND, INA is connected to digital interface 9, and INB is connected to digital interface 8, as shown below:

Product Description
Note: the bluetooth module is not welded to the adapter plate
Bluetooth Stereo Audio Module Transmission BK8000L AT Commands SPP Bluetooth Speaker Amplifier DIY
Bluetooth specification Bluetooth V2.1
Supply voltage DC2.8-4.2V, le2.9V automatic shutdown, le3.1V alarm
Bluetooth protocol HFPV1.5, A2DPV1.2, AVRCPV1.4, HSP1.2, GAVDP1.2, IOP
Working current le60mA
Standby current <500uA
Temperature range -40oC ~ 85oC
Wireless transmission range le10 meters
Transmission power Class2 4dbm
Sensitivity -80dBm <0.1% BER
Frequency Range 2.4GHz ~ 2.480GHz
External Interface Serial (TTL), connected to the PC need MAX232
SBC decoding audio performance
Module size 25x13.5x1.8mm
Adapter plate size 31x25mm

Product Description
The PCB Is Red
76-108MHz FM Stereo Radio DIY Kit Wireless FM Receiver Module Frequency Modulation Electronics Soldering Practice Project DC 2.7V-3.3V
Note: Please don't use 18650 battery, if not it will damage the item.
Description:
- The YFM-2 type radio circuit is very simple.
- The total number of components does not exceed 19.
- Although the number of components is not large, it includes two types of components: SMD and DIP which are suitable for novices and friends who want to practice soldering of SMD components.
Features:
1>.Built-in digital automatic gain control (AGC) circuit
2>.Support the global frequency band 76-108Mhz
3>.DIY manual welding
4>.Simple and easy to operate
5>.Support radio memory function
Parameter:
1>.Item name: FM Stereo Radio Module DIY Kit
2>.Item Mode:YFM-2
3>.Work Voltage:DC 3V
4>.Work Current:19mA
5>.Work Frequency:76-108Mhz
6>.Output impedance:32ohm
7>.Work Temperature:-40℃~85℃
8>.Work Humidity:0% ~95% RH
9>.Size(Installed):57*32*20mm
Applicable:
1>.Training welding skills
2>.Student school
3>.DIY production
4>.Project Design
5>.Electronic competition
6>.Graduation design
7>.Crafts collection
8>.Home decoration
9>.Souvenir collection
Installation Tips:
1>.User needs to prepare the welding tool at first.
2>.Please be patient until the installation is complete.
3>.The package is DIY kit.It need finish install by user.
4>.The soldering iron can't touch the components for a long time(1.0 second), otherwise it will damage the components.
5>.Pay attention to the positive and negative of the components.
6>.Strictly prohibit short circuit.
7>.Install complex components preferentially.
8>.Make sure all components are in right direction and right place.
9>.It is strongly recommended to read the installation manual before starting installation!!!
Installation Steps(Please be patient install!!!):
1>.Step 1: Install 1pcs SOP-16 RDA5807PF at U1.There is a dot on one corner of the IC and there is a rectangle pad on PCB where the Pin1 of IC can place on.These two marks are corresponding to each other and are used to specify the installation direction of the IC.
2>.Step 2: Install 1pcs 30K ohm Resistor at R1.
3>.Step 3: Install 1pcs 0.1uH Inductor at L1.
4>.Step 4: Install 2pcs 1uH Inductor at L2,L3.
5>.Step 5: Install 1pcs 32.768KHz Crystal Oscillator at Y1.
6>.Step 6: Install 1pcs 24pF Ceramic Capacitor at C1.
7>.Step 7: Install 1pcs 0.01pF(103) Ceramic Capacitor at C2.
8>.Step 8: Install 1pcs 0.022pF(223) Ceramic Capacitor at C3.
9>.Step 9: Install 5pcs 6*6*5mm Switch at S1-S5.
10>.Step 10: Install 1pcs 100uF 16V Electrolytic Capacitor at C4,C5. Please pay attention to the positive and negative poles. The shorter pin is the negative pole.
11>.Step 11: Install 1pcs 3.5mm Audio Jack at J1.
12>.Step 12: Connect battery box.Pay attention to positive and negative.
13>.Step 13: Use a cable tie to fasten the battery box.
14>.Step 14: Connect to power supply and enjoy the effect.

Product Description
Electronic Compass Compass Module QMC5883 Triple
Axis Compass Three-axis Magnetic Field Sensor
Description:
*High quality immersion gold pcb machine welding processes, quality assurance
*Name: QMC5883 module (three-axis magnetic field module)
*Model: GY-271
*Chip: QMC5883
*Power supply :3.3-5v
*Means of communication: IIC communication protocol
*Measuring range: ± 1.3-8 Gauss
*chematics, manuals and reference documentation of relevant data
51, the AVR microcontroller test code

Product Description
Size: 35*30(MM)
Adjustable frequency
Over current short circuit shut off self-locking
The output voltage can be regulated, and the effect is good!
The output current can reach about 1A, driving 20 3205 effect tubes is no problem
Power supply 8-12V
If the product is updated, no notice will be given unless the function is changed! Pin description
1. Positive power supply
2. Signal output
3. The negative pole of the power supply
4. Signal output
5. Optocoupler input anode
6. Optocoupler output negative
7, signal off short foot
8. Signal feedback pin

Product Description
1 RS422 interface, two-way communication. A B Y Z ultra-long distance transmission 1000 meters
2 The module has 15KV ESD protection.
3 Add a 10 ohm current-limiting and over-current protection resistor on the board.
4 The module has a TVS diode. Anti-lightning and anti-peak voltage.
5 The module has 120 ohm terminal resistance, which can effectively reduce the interference of long-distance communication echo.
6 There is a power indicator light and a data transceiver indicator light. The data status has a panoramic view.
7 Module TTL side Use 5v DC power supply RXD TXD compatible with 5V logic signal.
The 8 module adopts the original imported MAX490 chip, the stability and communication speed far exceed the domestic products, up to 2.5MBPS.
9 Module size: 5.0cm*2.7cm

Introduction
AT89C2051-based of four electronic clock kit
Kit Model: YSZ-4
Supply voltage: 3V-6V
PCB Size: 52mm * wide 42mm
Function:
1. Seconds correction (for precise School)
2. Switch to every minute independent display interface
3. whole point of time (8-20 o\'clock chime can be turned off)
4. Two alarm settings (you can turn off the alarm function)
Kit Features:
A. 0.56 inch special red digital clock for display;
B. Import AT89C2051 for master chip;
C.1.2mm thick PCB made from military grade FR-4 board;
D. accurate travel time, travel time error range error -1 to 1 seconds every 24 hours.
Package included:
100% Brand New
1x Electronic Clock DIY Kits
NOTE:
This produce is DIY kits, not the end product! We don\'t provide technical assistance please make sure you are familiar with the product before purchasing.

Specifications:
Product name: ATX power supply board
Model: XH - M229
Compatible with the port: ATX (compatible with partial BTX type)
The PIN number: 24 pin
Switch: Yes
Number of sets of output: Four sets of different voltage
Size: 12.8x4.8cm/5.04x1.89"
Quantity: 1 Pcs

Product description
Conversion can use a few chips is 1.8 V, such as winbond w25q64, macro mx25u1635 flourishing, mx25u6435 etc to burn written in 3.3 V programmer for conversion. These chips are normally used for apple computer motherboard.

Applicable as main 1.8 V chip:
winbond
W25q10ew w25q20ew, w25q20bw w25q40ew, w25q40bw, w25q80ew, w25q80bw, w25q16dw, w25q16fw, w25q32dw, w25q32fw, w25q64dw, w25q64fw, w25f128fw
In the macro
Mx25u5121e mx25r512f, mx25u1001e mx25r1035f, mx25u2033e, mx25r2035f, mx25u4035,
Mx25u4033e mx25u4032e, mx25r4035f mx25u8035, mx25u8035e, mx25u8033e, mx25u8032e,
Mx25r8035f mx25u1635e, mx25v1635f mx25u1635f, mx25r1635f, mx25u3235e, mx25u3235f,
Mx25r3235f mx25u6473f, mx25u6435f mx25r6435f, mx25u12873f, mx25u12835f,
Mx25u25635f mx25u51245g, mx25um51245g mx66u51235f
Such as...

Description:
Channels: 4 channels
Amplifier Chip: PAM8403
Working Voltage: DC5V
Output power: 3W*4
Product size: 46*29*13MM
Package included:
1 x Mini PAM8403 Digital Audio Amplifier Board

0.1 second (small) ~ 999 minutes (large) continuously adjustable

This product is easy to use and powerful, but buyers please read the operating instructions of this product in detail. It is a very practical product.



Module highlights:

1. Wide voltage power supply (6~30V) supports micro USB 5.0V power supply, which is very convenient to use;

2. The interface is clear and simple, powerful, easy to understand, and almost meets all your needs;

3. There is a key emergency stop function (STOP key), with reverse connection protection, reverse connection does not burn;


4. Different OP, CL, LOP parameters can be set, these parameters are independent of each other and saved separately;

5. All set parameters are automatically saved after power-off.



Operating mode:

P1: After the signal is triggered, the relay is turned on for OP time, and then turned off; during OP time, the following operations

P1.1: The signal is invalid when triggered again

P1.2: The signal is triggered again to re-timing

P1.3: The signal triggers the reset again, the relay is disconnected, and the timing stops;

P-2: Give the trigger signal, after the relay is turned off for CL time, the relay is turned on for OP time, after the timing is completed, the relay is turned off;

P3.1: Give the trigger signal, after the relay is turned on for the OP time, the relay will disconnect for the CL time, and then cycle the above actions, give the signal again in the cycle, the relay will disconnect, and stop timing; the number of cycles (LOP) can be set;

P3.2: There is no need to trigger signal after power-on, the OP time of relay is on, the CL time of relay is off, the above actions are cycled; the number of cycles (LOP) can be set;

P-4: Signal holding function. If there is a trigger signal, the timer is cleared and the relay remains on; when the signal disappears, the relay is disconnected after timing the OP; during the timing, there is another signal, and the timer is cleared;

Product parameters:

1: Working voltage: 6-30V support micro USB 5.0V power supply

2: Trigger signal source: high-level trigger (3.0V-24V) The signal ground and the system ground are not in the same ground to improve the anti-interference ability of the system (also can be short-circuited to the common ground)

3: Output capacity: can control equipment within DC 30v 5A or AC 220v5A

4: Quiescent current: 20mA working current: 50mA

5: Service life: more than 100,000 times; working temperature: -40—85°C; size: 6.2*3.8*1.7cm

6: With optocoupler isolation, enhanced anti-interference ability, industrial grade circuit board, set parameters forever after power failure

memory.

Special attention: The relay output is a passive contact, uncharged output, and controls the on-off function of a line.

Features:
8x8 dot matrix LED
8 step adjustable intensity
Shipping list:
1.For WEMOS Matrix LED Shiled x1PCS
2. Pins x2PCS

Product Description
1. Signal voltage at the drive end: 3.6-24V
2. Output voltage range: 3.6-30V (The output current depends on the specific situation but not 10MA, the total power is certain, and the voltage and current are inversely proportional)
3. The jumper cap can realize whether the output terminal is high-potential output or pull-down output.
4. The 4 817 channels on the board are all independent, which can realize simultaneous control of different voltages, etc.
5: Board size: length: 48mm; width: 38mm; long side hole distance: 42mm; wide side hole distance: 32mm
When encountering the need for isolation control and voltage conversion in actual work, this module will be used.
It can realize 3.3V or 5V control 3.6---24V voltage level interface. After the control terminal is turned on, the controlled terminal will also be turned on.
The photoelectric isolation has strong anti-interference ability. Later, it can drive high-power transistors, MOS tubes and other occasions that require high-voltage drive, and can also directly drive low-power 24V relays to work.
If it is a pulse signal, please note that the limit of 817 is below 4KHZ, please do not use this module for control signals greater than 4KHZ, it will not work properly.

Product Description
1. Signal voltage at the drive end: 3.6-24V
2. Output voltage range: 3.6-30V (The output current depends on the specific situation but not 10MA, the total power is certain, and the voltage and current are inversely proportional)
3. The jumper cap can realize whether the output terminal is high-potential output or pull-down output.
4. The 4 817 channels on the board are all independent, which can realize simultaneous control of different voltages, etc.
5: Board size: length: 48mm; width: 38mm; long side hole distance: 42mm; wide side hole distance: 32mm
When encountering the need for isolation control and voltage conversion in actual work, this module will be used.
It can realize 3.3V or 5V control 3.6---24V voltage level interface. After the control terminal is turned on, the controlled terminal will also be turned on.
The photoelectric isolation has strong anti-interference ability. Later, it can drive high-power transistors, MOS tubes and other occasions that require high-voltage drive, and can also directly drive low-power 24V relays to work.
If it is a pulse signal, please note that the limit of 817 is below 4KHZ, please do not use this module for control signals greater than 4KHZ, it will not work properly.