Kereskedelmi, irodai és ipari

Product parameter
Onboard module: onboard ESP8266 WiFi module, 5 clients can be connected at the same time in AP mode
Way of working:
1. The mobile phone is mounted on the WiFi module;
2. The mobile phone and WiFi module are mounted on the same router, and the relay is controlled through the mobile phone APP.
Transmission distance:
1. In an open environment, the maximum transmission distance of the mobile phone when it is mounted on the WiFi module is 400M;
2. When the WiFi module and the mobile phone are mounted on the router at the same time, the transmission distance depends on the signal strength of the router.
On-board relay: On-board 5V, 10A/250V AC 10A/30V DC relay, which can be activated continuously for 100,000 times
Baud rate: 9600, 8, 1, 0, 0
Others: The module has diode effusion protection, and the response time is short

Product parameter
Onboard module: onboard ESP8266 WiFi module, 5 clients can be connected at the same time in AP mode
Way of working:
1. The mobile phone is mounted on the WiFi module;
2. The mobile phone and WiFi module are mounted on the same router, and the relay is controlled through the mobile phone APP.
Transmission distance:
1. In an open environment, the maximum transmission distance of the mobile phone when it is mounted on the WiFi module is 400M;
2. When the WiFi module and the mobile phone are mounted on the router at the same time, the transmission distance depends on the signal strength of the router.
On-board relay: On-board 5V, 10A/250V AC 10A/30V DC relay, which can be activated continuously for 100,000 times
Baud rate: 9600, 8, 1, 0, 0
Others: The module has diode effusion protection, and the response time is short

Product information
1: Ultra-thin product: to reduce the height of hybrid integrated circuit components, and replace the traditional plug-in Y-CAP with patch Y-CAP.
2: Using chip Y-cap back-attachment (board height <2.6mm) process design, using HIC two-sided space intensive design, effectively reducing the total area and thickness of HIC, and realizing miniaturization of hybrid integrated circuit products.
3: Optimize design and impMrove reliability: by designing the chip Y-cap back to keep it away from other power-type components on the front, avoiding Y-cap temperature rise due to heat release and thermal breakdown failure caused by poor heat dissipation ; At the same time, avoid inter-electrode arc discharge when the distance between the components is too close.
4: Realize the effect:
(1) Chip Y-capSMD reel and tape packaging, suitable for SMT automatic surface mounting, instead of PCB plug-in installation.
(2) Improve customer production efficiency and save labor and system costs.
(3) Improve the consistency level of customer product quality, and avoid the low probability of plug-in technology, false welding and other defects
Y2 102M 300VAC SMD Safety Ceramic Capacitor for AC 
capacitor classed sub-class Y2
Nominal capacity 1000PF
Capacity of tolerance M(±20% )
Rated Voltage: 300VAC ( Y2)

Features:
Raspberry PI B version Triple GPIO Multiplexing Board
Package Contents
100% Brand New
Raspberry Pi 2 model B/B Triple GPIO Multiplexing Expansion Board

Product information
1: Ultra-thin product: to reduce the height of hybrid integrated circuit components, and replace the traditional plug-in Y-CAP with patch Y-CAP.
2: Using chip Y-cap back-attachment (board height <2.6mm) process design, using HIC two-sided space intensive design, effectively reducing the total area and thickness of HIC, and realizing miniaturization of hybrid integrated circuit products.
3: Optimize design and impMrove reliability: by designing the chip Y-cap back to keep it away from other power-type components on the front, avoiding Y-cap temperature rise due to heat release and thermal breakdown failure caused by poor heat dissipation ; At the same time, avoid inter-electrode arc discharge when the distance between the components is too close.
4: Realize the effect:
(1) Chip Y-capSMD reel and tape packaging, suitable for SMT automatic surface mounting, instead of PCB plug-in installation.
(2) Improve customer production efficiency and save labor and system costs.
(3) Improve the consistency level of customer product quality, and avoid the low probability of plug-in technology, false welding and other defects
Y2 221K 300VAC SMD Safety Ceramic Capacitor for AC 
capacitor classed sub-class Y2
Nominal capacity 220PF
Capacity of tolerance K(±10% )
Rated Voltage: 300VAC ( Y2)

Product information
1: Ultra-thin product: to reduce the height of hybrid integrated circuit components, and replace the traditional plug-in Y-CAP with patch Y-CAP.
2: Using chip Y-cap back-attachment (board height <2.6mm) process design, using HIC two-sided space intensive design, effectively reducing the total area and thickness of HIC, and realizing miniaturization of hybrid integrated circuit products.
3: Optimize design and impMrove reliability: by designing the chip Y-cap back to keep it away from other power-type components on the front, avoiding Y-cap temperature rise due to heat release and thermal breakdown failure caused by poor heat dissipation ; At the same time, avoid inter-electrode arc discharge when the distance between the components is too close.
4: Realize the effect:
(1) Chip Y-capSMD reel and tape packaging, suitable for SMT automatic surface mounting, instead of PCB plug-in installation.
(2) Improve customer production efficiency and save labor and system costs.
(3) Improve the consistency level of customer product quality, and avoid the low probability of plug-in technology, false welding and other defects

Suitable for a single lamp bead voltage of 3V, multiple parallels uses, the maximum drive output is about 1A, using SI2302 NMOS tube, onboard lithium battery charging management and Seiko protection chip, special 4KHZ frequency PWM, single-channel DC LED light-touch Control step-less dimming IC, basically no flicker; with automatic power supply switching function, when the external power supply is no longer powered by the battery, it is powered by the external power supply while charging the battery; when the external power supply is unplugged, it will automatically switch to the battery power supply. Ensure that the battery can be charged and fully charged correctly; and with a low-power LDO to provide the operating voltage for the touch chip, it can calmly deal with any complex working environment.

Product information
1: Ultra-thin product: to reduce the height of hybrid integrated circuit components, and replace the traditional plug-in Y-CAP with patch Y-CAP.
2: Using chip Y-cap back-attachment (board height <2.6mm) process design, using HIC two-sided space intensive design, effectively reducing the total area and thickness of HIC, and realizing miniaturization of hybrid integrated circuit products.
3: Optimize design and impMrove reliability: by designing the chip Y-cap back to keep it away from other power-type components on the front, avoiding Y-cap temperature rise due to heat release and thermal breakdown failure caused by poor heat dissipation ; At the same time, avoid inter-electrode arc discharge when the distance between the components is too close.
4: Realize the effect:
(1) Chip Y-capSMD reel and tape packaging, suitable for SMT automatic surface mounting, instead of PCB plug-in installation.
(2) Improve customer production efficiency and save labor and system costs.
(3) Improve the consistency level of customer product quality, and avoid the low probability of plug-in technology, false welding and other defects
Y2 471K 300VAC SMD Safety Ceramic Capacitor for AC 
capacitor classed sub-class Y2
Nominal capacity 470PF
Capacity of tolerance M(±20% )
Rated Voltage: 300VAC ( Y2)

CH340C ESP8266 ESP-01 Prog WIFI Downloader
This downloader uses CH340CUSB to serial port chip, and adds ESP8266 automatic download circuit, which is very convenient for users to download programs, upgrade firmware, serial debugging, etc. to ESP-01/01S. It supports Arduino IDE, ESP8266 Flasher and Espressif FLASH-DOWNLOAD -TOOLS and other download software software can be downloaded with one button, no wiring, no need to press any buttons. The WiFi module will automatically enter the download mode.

CH340C ESP8266 ESP-01 Prog WIFI Downloader
This downloader uses CH340CUSB to serial port chip, and adds ESP8266 automatic download circuit, which is very convenient for users to download programs, upgrade firmware, serial debugging, etc. to ESP-01/01S. It supports Arduino IDE, ESP8266 Flasher and Espressif FLASH-DOWNLOAD -TOOLS and other download software software can be downloaded with one button, no wiring, no need to press any buttons. The WiFi module will automatically enter the download mode.

CH340C ESP8266 ESP-01 Prog WIFI Downloader
This downloader uses CH340CUSB to serial port chip, and adds ESP8266 automatic download circuit, which is very convenient for users to download programs, upgrade firmware, serial debugging, etc. to ESP-01/01S. It supports Arduino IDE, ESP8266 Flasher and Espressif FLASH-DOWNLOAD -TOOLS and other download software software can be downloaded with one button, no wiring, no need to press any buttons. The WiFi module will automatically enter the download mode.

Product information
1: Ultra-thin product: to reduce the height of hybrid integrated circuit components, and replace the traditional plug-in Y-CAP with patch Y-CAP.
2: Using chip Y-cap back-attachment (board height <2.6mm) process design, using HIC two-sided space intensive design, effectively reducing the total area and thickness of HIC, and realizing miniaturization of hybrid integrated circuit products.
3: Optimize design and impMrove reliability: by designing the chip Y-cap back to keep it away from other power-type components on the front, avoiding Y-cap temperature rise due to heat release and thermal breakdown failure caused by poor heat dissipation ; At the same time, avoid inter-electrode arc discharge when the distance between the components is too close.
4: Realize the effect:
(1) Chip Y-capSMD reel and tape packaging, suitable for SMT automatic surface mounting, instead of PCB plug-in installation.
(2) Improve customer production efficiency and save labor and system costs.
(3) Improve the consistency level of customer product quality, and avoid the low probability of plug-in technology, false welding and other defects
Y1 102M 400VAC SMD Safety Ceramic Capacitor for AC 
capacitor classed sub-class Y1
Nominal capacity 1000PF
Capacity of tolerance M(±20% )
Rated Voltage: 400VAC ( Y1)
Product structure:
Dimensions(mm)
L

7.8±0.1

W1

2.5±0.05
W

5.4±0.1

T

0.13±0.05
H

2.38±0.05

H1

0.05±0.03
L1

9.6±0.2

L3

0.5±0.1
L2

8.4±0.2


No.

Part name

Material

Model
①

Coating

Epoxy molding compound  (Conforming to UL94V-0 standard )

/
②

Electrode

Silver

/
③

Solder

Sn-Pb-AgSolde

/
④

Lead wire

Copper alloys

/
⑤

Dielectric

Ceramic

All series
Pin structure:

This downloader supports 3.3V and 5V STC full series MCU programming
With the functions of USB to TTL and USB to serial port, it can be used to upgrade USB to TTL electronic products without affecting normal serial communication debugging!
The highest baud rate 115200 is perfectly supported! No need to worry about the burning of STC12 series, STC11 series and STC15 series!
Each comes standard with 4 Dupont lines

Ramps 1.6 is based on Ramps 1.4 & Ramps 1.5 Optimized by Biqu
The structure is almost the same as the Ramps 1.5, the difference is that the Ramps 1.6 has a new 2pin connector, the connection is simpler and more convenient, and it will not be easily burned, more importantly, the Ramps 1.6 has a good heat sink above the MOS tube , to provide a better cooling function.
In addition, the Ramps 1.6 has more power than the Ramps 1.5, with a maximum power of up to or 270W, while the Ramps 1.5 can only reach 200W, or less than 200W.
1. It can be extended to LCD and other components.
2. There are heater and fan MOSFET outputs and 3 thermistor interfaces
3,5A Additional Safety and Component Protection Fusion
4. Additional 11A fuse for heating bed control
5. Applied to 5 stepper driver boards
6. The design of the board pin socket can be easily replaced or removed for future design
7. I2C and SPI pins are available for future expansion
8. Servo connectors are used to connect limiters, motors and light-emitting diodes. These connectors are gold plated, rated 3A, and are very compact.
9. When the heater has output, the LED light is on
10. Select 2 motors to connect to Z Prusa Mendell

Ramps 1.6 is based on Ramps 1.4 & Ramps 1.5 Optimized by Biqu
The structure is almost the same as the Ramps 1.5, the difference is that the Ramps 1.6 has a new 2pin connector, the connection is simpler and more convenient, and it will not be easily burned, more importantly, the Ramps 1.6 has a good heat sink above the MOS tube , to provide a better cooling function.
In addition, the Ramps 1.6 has more power than the Ramps 1.5, with a maximum power of up to or 270W, while the Ramps 1.5 can only reach 200W, or less than 200W.
1. It can be extended to LCD and other components.
2. There are heater and fan MOSFET outputs and 3 thermistor interfaces
3,5A Additional Safety and Component Protection Fusion
4. Additional 11A fuse for heating bed control
5. Applied to 5 stepper driver boards
6. The design of the board pin socket can be easily replaced or removed for future design
7. I2C and SPI pins are available for future expansion
8. Servo connectors are used to connect limiters, motors and light-emitting diodes. These connectors are gold plated, rated 3A, and are very compact.
9. When the heater has output, the LED light is on
10. Select 2 motors to connect to Z Prusa Mendell

Ramps 1.6 is based on Ramps 1.4 & Ramps 1.5 Optimized by Biqu
The structure is almost the same as the Ramps 1.5, the difference is that the Ramps 1.6 has a new 2pin connector, the connection is simpler and more convenient, and it will not be easily burned, more importantly, the Ramps 1.6 has a good heat sink above the MOS tube , to provide a better cooling function.
In addition, the Ramps 1.6 has more power than the Ramps 1.5, with a maximum power of up to or 270W, while the Ramps 1.5 can only reach 200W, or less than 200W.
1. It can be extended to LCD and other components.
2. There are heater and fan MOSFET outputs and 3 thermistor interfaces
3,5A Additional Safety and Component Protection Fusion
4. Additional 11A fuse for heating bed control
5. Applied to 5 stepper driver boards
6. The design of the board pin socket can be easily replaced or removed for future design
7. I2C and SPI pins are available for future expansion
8. Servo connectors are used to connect limiters, motors and light-emitting diodes. These connectors are gold plated, rated 3A, and are very compact.
9. When the heater has output, the LED light is on
10. Select 2 motors to connect to Z Prusa Mendell

Description:
1. has the signal output instructions.
2. single signal output.
3. effective signal output for low level.
4. sensitivity adjustable pure tone ().
5. have the field cuts have signal output
6. circuit boards output switch quantity! (can be directly by SCM)

NOTE: It's DIY kit, not assembled products
information download link: www77.zippyshare.com/v/E55KSgcn/file.html
Description:
This
circuit voltage can be from 0 v, output current can be ma from 2 to 3 a
continuously adjustable, set the output current, if the experiment
circuit exceeds the current (including short circuit), the circuit
protection immediately, not cause danger such as burning device, it is
electronic manufacture's right-hand man. It is never afraid of the
fireworks! Like making all kinds of audio circuit friend, often due to
the different working voltage and circuit have a headache, this circuit
can also two series into a dual power supply, can meet the needs of all
sorts of use.
Feature:
Input voltage: 24V AC
Input current: 3A maximum
Output voltage: 0 to 30V continuous adjustable
Output current: 2mA - 3A continuously adjustable
output voltage ripple: minimum 0.01%
All straight inserted element, make easy, only an adjustable components ( used to adjust the voltage of 0 v )
LED
indicator for output over current, when the current exceeds the set
data circuit protection, LED lighting, over load and short circuit
protection Minimum current (2mA) under the measurable leds and zener
diode
Notice:
Power
production belongs to the high voltage large current circuit, please be
sure to carefully, otherwise may cause harm to the personal safety
Package included:
1 x Adjustable DC Regulated Power Supply DIY Kit

Parameters:
Voltage:3.3-5Vwith Anticonnect circuit
Output: the default simulation (can be set high and low level output)
Send for Arduino  reads code

Parameters:
Voltage:3.3-5Vwith Anticonnect circuit
Output: the default simulation (can be set high and low level output)
Send for Arduino  reads code

Product Parameters
Size: 33*24mm
Weight: 10g
Voltage: 3.3V, 5V
Ports: Digital Level
Output load voltage :0-24V
Output load current: <5A (1A above need to add heat sink)
Platform: , MCU, ARM, raspberry pie
Using original IRF520 Power MOS, you can adjust the output PWM
drive up to 24V allows the load, such as LED lights, DC motors, miniature pumps, solenoid valves
PWM dimming LED can be used to achieve stepless dimming, variable speed motor
Package Included:
5 x TOP MOSFET Button IRF520 MOSFET Driver Module for ARM Raspberry pi

GA12-N20 deceleration motor smart car 3V6V12V micro DC gear deceleration motor low speed motor
3V: 35 rpm
6V: 70 rpm
9V: 105 rpm
12V: 140 rpm
ps: the same product. Different voltage, different speed

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Packet Plus ) can be traced only befor it arrive your country,please
choose Standard category logistics if you want a full tracking info.
The
PCF8575C is controlled through an I2C interface and features 16-bits of
quasi-bidirectional input/output pins. This is IC allows the user to
expand up to 16 I/O using only two I/O for control!
Features:
Chip:PCF8575C
I2C to Parallel-Port Expander
Open-Drain Interrupt Output
Low Standby-Current Consumption of 10 µA Max
Compatible With Most Microcontrollers
400-kHz Fast I2C Bus

Warm prompt: Dear buyer, Our cheapest transportation services Economic
category logistics (SunYou Economic Air Mail ,China Post Ordinary Small
Packet Plus ) can be traced only befor it arrive your country,please
choose Standard category logistics if you want a full tracking info.
The
PCF8575C is controlled through an I2C interface and features 16-bits of
quasi-bidirectional input/output pins. This is IC allows the user to
expand up to 16 I/O using only two I/O for control!
Features:
Chip:PCF8575C
I2C to Parallel-Port Expander
Open-Drain Interrupt Output
Low Standby-Current Consumption of 10 µA Max
Compatible With Most Microcontrollers
400-kHz Fast I2C Bus

Features:
LCD display module with blue blacklight.
Wide viewing angle and high contrast.
Built-in industry standard HD44780 equivalent LCD controller.
Commonly used in: copiers, fax machines, laser printers,
      industrial test equipment, networking equipment such as routers and storage devices.
LCM type: Characters
Can display 2-lines X 16-characters.
Voltage: 5V DC.
Module dimension: 80mm x 35mm x 11mm.
Viewing area size: 64.5mm x 16mm
Package including:
1pcs 1602 16x2 HD44780 Character LCD Display Module Blue Blacklight

Features:
LCD display module with blue blacklight.
Wide viewing angle and high contrast.
Built-in industry standard HD44780 equivalent LCD controller.
Commonly used in: copiers, fax machines, laser printers,
      industrial test equipment, networking equipment such as routers and storage devices.
LCM type: Characters
Can display 2-lines X 16-characters.
Voltage: 5V DC.
Module dimension: 80mm x 35mm x 11mm.
Viewing area size: 64.5mm x 16mm
Package including:
1pcs 1602 16x2 HD44780 Character LCD Display Module Blue Blacklight

Description:
E18-D80NK
is a set of transmitter and receiver in one of the photoelectric
sensor. Detection distance can be adjusted according to requirements.
The sensor has many advantages such as long distance detection, low
visible light interference, cheap price, easy assembly, and easy to use.
It can be widely used in robot obstacle avoidance, pipeline line piece
and many other automation products.
Application:
1. Automatic production line of goods counting equipment
2. Multi-function reminder
3. Take the maze robot
Technical Parameters:
1. Output Current DC / SCR / Relay Output: 100mA / 5V power supply
2. Current consumption DC <25mA
3. Response time <2ms
4. Pointing angle: 15 °, the effective distance 3-80 CM adjustable
5. Detection of objects: transparent or opaque body
6. Working temperature: -25°C ~ 55 °C
7. Standard detection object: the following incandescent 3000LX below 10000LX sunlight
8. Housing material: plastic
Electrical Characteristics:
Sensing range: 3-80cm
Sensing object: Translucency, opaque
Supply voltage: DC5V
Output operation: Normally open (O)
Output: DC three-wire system (NPN)
Pin Definitions:
Red -> positive
Black ----> signal
Blue -> negative

AHT20 BPM280 temperature, humidity and air pressure module
Product overview
This product uses a new digital temperature and humidity sensor AHT20 and BPM280 composition, I2C mainstream output, supports simultaneous online access to multiple I2C electronic devices or modules, voltage DC2.8V-5V can be used, voltage adaptation is easy, power consumption Small, simple circuit, accurate temperature measurement point. The transmission speed is stable and fast. Small size. Use 4P GROVE rehearsal cable connection, which is convenient for users to use quickly,
PCB module size: 16MM*16MM*1MM
Working voltage: recommended DC2.0V~5V

3W High-Power 850 infrared LED
   Onboard photoresistor, the ambient light detector
   Onboard adjustable resistor, for controlling the ambient light threshold of toggling the infrared LED
   Allows adding night vision function to RPi Camera (E) or RPi Camera (F)
   How to Use
   Connect the Infrared LED Board to the camera PCB by screws
   The screw holes are used for both attachment and power supply
   Adjust the adjustable resistor to set a proper ambient light threshold, which toggles the infrared LED automatically
   When ambient light is lower than threshold value, the infrared LED is on, vice vers

Product introduction:
The INMP441 is a high performance, low power, digital output, omnidirectional MEMS microphone with bottom port.
The The complete INMP441 solution consists of a MEMS sensor, signal conditioning, analog to digital converter, anti-aliasing filter, power management and industry standard 24-bit I2S interface. The I2S interface allows the INMP441 to be directly connected to digital processors such as DSPs and microcontrollers without the need for an audio codec for use in the system. The INMP441 has a high signal-to-noise ratio and is an excellent choice for near field applications. The INMP441 has a flat wideband frequency response that results in high definition of natural sound.
Product Features:
1. Digital I2S interface with high precision 24-bit data
2. High signal to noise ratio is 61 dBA
3. High sensitivity - 26 dBFS
4. Stable frequency response from 60 Hz to 15 kHz
5. Low power consumption: low current consumption 1.4 mA
6. High PSR: -75 dBFS
Interface definition:
SCK: Serial data clock for I2S interface
WS: Serial data word selection for I2S interface L/R: Left/Right channel selection.
When set to low, the microphone outputs a signal on the left channel of the I2S frame.
When set to high level, the microphone outputs signals on the right channel
SD: Serial data output of the I2S interface.
VCC: Input power, 1.8V to 3.3V.
GND: power ground
This product provides tutorials for using ESP32 modules with I2S functionality.
Connect to ESP32:
INMP441 ESP32
1.SCK >> GPIO14
2.SD >> GPIO32
3.WS >> GPIO15
4.L/R >> GND
5.GND >> GND
6.VDD >> VDD3.3
What is the difference between an omnidirectional microphone and a unidirectional microphone: First of all, I understand that the sound divergence is all-round. One person speaks and diverge in the air. As for how far it can pass, it depends on many factors.
1.directional microphone, the general pickup radius is very small, 30 cm is a big one, single use, put it on the mouth, the sound quality is very good, because it is not picked up again. The shape is generally goose neck wheat, a rod, a curved rod, to your mouth, directivity, just listen to your voice. With a single-point microphone, the sensitivity is limited to a certain range. Sensitivity is too high, causing sharp whistling, etc., involving many other devices As for why not make a big pickup radius, there is a reason. Later
2.omnidirectional microphone, the general pickup radius is very large, one meter two meters three meters five meters have, compared with ten centimeters, this level is very different, it is not just picking a person's voice, but Multiple people, five six, seven eight or even ten. Omnidirectional microphones are highly sensitive, The omnidirectional microphone pickup radius is too large, and it will also pick up more ambient noise, so the sound quality is not as good as the single-point microphone, unless you do a good noise reduction. There is definitely a difference between collective use and single-person service. But omnidirectional wheat has a benefit, the wiring is simple, not one by one. Suitable for small meetings, ad hoc meetings, some remote discussions, remote operations.
3.single-point wheat generally supports local amplification, Omnidirectional microphones generally do not support local amplification. It should be noted that because of such high sensitivity, the local amplification whistling is very scary, and the current technology is difficult to deal with.

2 series lithium battery boost charging board
The 2-string lithium battery boost charging board is a dual-cell series lithium battery synchronous boost charging module with high integration and high reliability. The input voltage is 5V, the BAT voltage is 8.4V, and the charging efficiency is 94% when the charging current is 1.2A. . Charging integrates various protection functions: input over-voltage, input under-voltage, output over-voltage, output short-circuit, chip over-temperature, and a maximum charging time of 24 hours.
Parameter function description
1. Input voltage working range 4.6V~5.5V
2.5V/2A input synchronous boost charging
3. Enter adaptive charging
4. Support two 4.2V batteries
5. ED displays the charging status, supports two-color light display
6. Comes with trickle/constant current/constant voltage charging mode
7. Charge 24 hours timeout protection
8. Output over current, over voltage, short circuit protection
9. Input overvoltage and undervoltage protection
10. Input withstand voltage 13V
11.OTP over temperature protection
12. Size: 28MM*17MM

STM8S core board highlights:
This development board uses MicroUSB to get power, which is compatible with smart phone data cables. The data cable is simple and easy to get, instead of USB MINI cable. The USB MINI cable is not easy to find and has been gradually eliminated. This is what distinguishes this module from other home products. Important features.
Ultra-low price, user-friendly design, and a full set of information, allowing you to save money, time, effort, and worry!
STM8S core board main features:
1. Use STM8S003F3P6 as the master IC.
2. You can use the 2.54 pin on the board to get power or the pad to get power. When using the pad to get power, the input voltage range is 4.5V-15V, and it can output 3.3V to the outside through the pin at the same time!
Note: The 5V pin header is connected to the input power supply of the module.
3. Lead out all the pins, the pin label is marked next to the pin, with a reset button, a power indicator, and a program demonstration indicator. Although the sparrow is small, it has all the internal organs.
4. Support SWIM debugging mode.

Standard: Conforms to USB2.0 standard, backward compatible, conforms to RS485 standard
Direction control: using data flow automatic control technology to automatically determine and control the data transmission direction
Baud rate: 300-9216000bps, automatic detection of serial port signal rate
Load capacity: support point-to-multipoint, each converter can be allowed to connect 32 RS485 interface devices
Interface protection: TVS tube protection, USB self-recovery protection
Support Windows98/ME/2000/XP/WIN7/Vista, Linux, Mac
It can support equipment with RS485 interface: surveillance cameras, video capture devices, fingerprint attendance machines, program-controlled switches, CNC machines, single-chip computers, etc.

AC current transformer Current sensor module 0-5A 3p/4p interface Current sensor module
3-wire electronic building block interface, input 5V-GND. S pin is the output analog voltage value. You can use jumpers to select the output parallel resistance to adjust the output analog value range. See the product manual for details. - Transformers can only sense alternating current
Electrical characteristics
Parameter

Min.

Typical

Max.

Unit
Transformation coefficient

-

1000:1

-

-
Input current

0

-

5

A
Output current

0

-

5

mA
Sampling resistor

-

200

-

Ω
Sampling voltage

0

-

1

V
Working frequency

20

-

20000

Hz
Working temperature

-55

-

85

℃
Dielectric strength

-

6

-

KAC/1min

Adopt PL2303HXD chip, support xp win7 win8 win10 operating system and Android system.
Not only the power light PWR, but also the TXD and RXD indicator lights, the RTS and CTS positions are reserved to facilitate the intuitive understanding of whether the product is working without the instrument;
After connecting to the computer and installing the driver, the computer will expand a COM port (the specific COM slogan can be seen in the port in the hardware, and the driver can be viewed in the computer device manager=》port after the driver is installed), and the corresponding software It can debug, upgrade or update the software of various TTL interface equipment systems such as mobile phones, GPS, walkie-talkies, set-top boxes, wireless modems, PDAs, routers, DVDs, hard disks, and single-chip microcomputers (such as STC).
Shipping list:
PL2303HXD module 1

Product description:
This module can be applied to a single-cell lithium battery with a 5V-12V output for charging general digital products, such as mobile phones, iPad, MP3, PSP, etc. It can become a high-current output mobile power supply just by connecting the battery. You can also supply power for 5-12V products by setting the output voltage.
Product parameter
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, after triggering fast charge, it is between 4.5V and 12V according to the agreement.
Input rated current: 8A
Output current: 5V3A, 9V2A, 12V2A. The output current is adaptive.
Output power: maximum 24W.
Support agreement: QC2.0, QC3.0, Huawei FCP, DCP agreement
The efficiency is up to 93% , with a typical value of 90% .
Input wiring method: solder wire, use thicker wire as much as possible
Module size: 47.5 (length) * 16.5 (width) * 8 (height) mm (including USB)
Module net weight: about 7 grams
Supplementary chip related information:
Tianyu FP6601Q chip integrates HiSilicon fast charge protocol and Qualcomm QC2.0/3.0 USB 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 Apple and 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 class A 5V, 9V, 12V voltage output.
3. Automatically recognize FCP and QC2.0/3.0 fast charge protocol.
4. Support YD/T 1591 protocol equipment of Chinese telecom company.
TPS61088 is a high-power-density fully integrated boost converter, equipped with an 11 mΩ power switch and a 13 mΩ rectifier switch, which can provide efficient small-size solutions for portable systems. The TPS61088 has a wide input voltage range of 2.7V to 12V, which can support applications that use single-cell or two-cell lithium batteries. The device has 10A switching current capability and can provide output voltages up to 12.6V.
TPS61088 uses an adaptive constant off-time peak current control topology to adjust the output voltage. Under medium to heavy load conditions, TPS61088 works in PWM mode. Under light load conditions, the device can select one of the following two operating modes through the MODE pin. One is the PFM mode that can improve efficiency; the other is the forced PWM mode that can avoid application problems due to low switching frequency. The switching frequency in PWM mode can be adjusted from 200kHz to 2.2MHz through an external resistor. TPS61088 also implements a programmable soft-start function and an adjustable switch peak current limit function. In addition, the device also provides 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.
Precautions:
The module does not have reverse connection protection, so remember not to connect the wrong polarity of the input terminal.
The input voltage range is 2.8~4.5V, 5V input is not allowed.
Lithium batteries must be equipped with a protection board, and the protection board has a continuous current of at least 5A.
This module can be powered by a single-cell lithium battery, or multiple cells in parallel.
Shopping list:
1 x TPS61088 boost fast charging source module

Features:
1. This is a USB-TTL conversion cable, which uses the PL-2303HXD conversion chip internally, the cable length is 1M, and supports windowsXP/WIN/7/8
2. 6 wires have been drawn, leading to RTS CTS TXD RXD GND 5V:
Red: 5V
White: RX
Green: TX
Black: GND
Yellow; RTS
Blue CTS
3. It can be used for various equipment development, debugging, burning, upgrading, flashing and so on.
4. No crash, undead serial port, stable performance, which is also the purpose of customizing this conversion line.
5. This line is very different from the domestic conversion line on the market. For the convenience of research and development, save trouble. The treasure of R&D personnel.