Kereskedelmi, irodai és ipari

- DS1302 main performance index
In The real time clock has The ability of calculating The prior to The 2100 second, minute, hour, day, week, month, year, and The ability to adjust a leap year
- Wide working voltage: 2.0 ~ 5.5 V
- When The working voltage is 2.0 V, The current is less than 300 na
- Read/write clock or RAM data have two transmission way: Single - byte/many bytes group
8 feet - 8 feet DIP the assembly or optional SOIC encapsulation "according to the surface of the assembly

 
2004 204 20X4 Character LCD Display Module Blue Backlight.
Condition: brand new
Blue backlight
Fully assembled and tested Serial LCD 20x4 Module
Display Format: 20 Characters x 4 lines
Supply voltage: 5V
The module can be easily interfaced with a MCU
The module is a low-power consumption character LCD Module with a built-in controller
 
 

10Pcs DC-005 Black DC Power Jack Socket Connector DC005 5.5*2.1mm 2.1 socket Round the needle
 
 
 

LM2596 LM2596S DC-DC 4.5-40V adjustable step-down power Supply module 
 
Name : LM2596 DC-DC Buck module
Input voltage :4V ~ 35V
The output voltage : 1.23V ~ 30V
Output Current :3A( Max)
Conversion efficiency:92% ( MAX )
Output ripple: <30mV
Switching frequency: 150KHz
Working temperature: -forty Five~ 85
Size :43mm * 21mm * 14mm(Long*Width*Hight)
Features:
1. the range of input voltage: 3.2 V to 40 V dc (input voltage must be higher than to the output voltage of 1.5 V above. Can't booster)
2. the range of output voltage: 1.25 V dc to 35 V voltage adjustable, high efficiency (92% ) largest maximum output current is 3A.
 
Instructions:
1. Power (3-40V), power indicator light, the module is working properly.
 
2. Adjust the blue potentiometer knob (clockwise rotation generally boost,counter-clockwise rotationTurn down) and reach with a multimeter to monitor the output voltage required voltage.
 
Note:
 
  Current work long hours is recommended for use in less than 2.5A, while adding bulkHeat sink (10W output above),because it is the step-down module, in order to ensure stable output Set,please keep the minimum 1.5V differential.
 

 
 
 
 

Driver chip: SSD1327 Module interface: I2C Display color: white Gray scale: 16 bits High resolution: 128×128 Viewing angle: greater than 160° Operating voltage: 3.3V / 5V Suitable For Arduino /For Raspberry Pi / For STM32

Features:
 
    100% Brand New.
    Size: 48mm x 29mm x 21mm.
    Display color: Red & Blue LED (dual display).
    Display: 0.28" LED digital.
    Operating voltage: DC 4.5 ~ 30V.
    Measure voltage: DC 0 ~ 100V.
    Minimum resolution (V): 0.1V.
    Refresh rate: ≥500ms / times.
    Measure accuracy: 1% (± 1 digit).
    Minimum resolution (A): 0.01A.
    Operating Current: <20mA.
    Measure current: 10A (direct measurement, built-in shunt).
    Operating temperature: -10 to 65°c.
    Operating Humidity: 10 to 80% (non-condensing).
    Mounting cutout: 45.5mm x 26.5mm.
Package Content:
    1 x DC 0-100V Voltmeter Ammeter
 
 

MC-38 1pair Wired Door Window Sensor 330mm Wire Lengthen Randomly Magnetic Switch Home Alarm System N.C Type

2 Channel
Name: IIC I2C level conversion module 5-3v system compatible
Model: ICC I2C
Power supply :5V-3V
AVCC connect to 5V system power
ASCL connect to 5V system SCL
ASDA connect to 5V system SDA
AGND connect to 5V system GND
BVCC connect to 3V system power
BSCL connect to 3V system SCL
BSDA connect to 3V systems SDA
BGND connect to 3V system GND
4Channel
If you've ever tried to connect a 3.3V device to a 5V system, you know what a challenge it can be.bi-directional logic level converter is a small device that safely steps down 5V signals to 3.3V AND steps up 3.3V to 5V at the same time.This level converter also works with 2.8V and 1.8V devices.What really separates this Logic level converter from our previous versions is that you can successfully set your high and low voltages and step up and down between them safely on the same channel.Each level converter has the capability of converting 4 pins on the high side to 4 pins on the low side with two inputs and two outputs provided for each side.
The level converter is very easy to use.The board needs to be powered from the two voltages sources (high voltage and low voltage) that your system is using.High voltage (5V for example) to the HV' pin, low voltage (3.3V for example) to LV', and ground from the system to the GND' pin.
Dimensions:0.63 x 0.52" (16.05 x 13.33mm)
Documents:
Schematic
Eagle Files
Datasheet (BSS138)
Hookup Guide
GitHub
Product Video

Multi-function mini boost module
Basic parameters
The output voltage can be set to 5V/8V/9V/12V, the default is 12V
Input voltage range: 2.5V~VOUT-0.5V
Output performance: Take 3.7V lithium battery input as an example, it can output 5V1.2A, 8V0.7A, 9V0.6A, 12V0.5A. Make sure that the input current and output current do not exceed 1.5A.
Voltage setting description
The front side of the PCB can be seen with the words A and B. The output voltage can be changed by using the soldering iron to change the pad on and off. In the following table, 0 means the pad is disconnected and 1 means the pad is connected.
A B VOUT
0 0 5V
0 1 8V
1 0 9V
1 1 12V
The pad next to the LED indicator can also be turned off to turn off the indicator.
Product size: 22 × 11 × 3.6mm

0.96 inch oled IIC Serial White OLED Display Module 128X64 I2C SSD1306 12864 LCD Screen Board for Arduino
 
Interface type: IIC interface

Pin definition: GND, VCC, SCK, SDA

1:GND(OLED power supply)

2:VDD (OLED 3.3~5V)

3:SCK(OLED IIC Clock line)

4:SDA(OLED IIC Cable

 



 

The module is a low-power consumption character LCD Module with a built-in controller.
The module can be easily interfaced with a MCU.
Description:
This LCD display module can be widely used in various fields
Working Voltage: 5V
Blue backlight, black characters
Display Format: 8 characters x 2 lines
Module Size (L x W x H): Approx. 2.28 x 1.26 x 0.4 inch / 5.8 x 3.2 x 1.05 cm
Viewing Area: Approx. 1.5 x 0.63 inch / 3.8 x 1.6 cm
Character Size: 2.96 x 5.56mm
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.

Blue/Green 12V LY6W Lead Acid Battery Capacity Indicator LCD Digit Display Meter Lithium Battery Power Detector Tester Voltmeter

Description
Module name :250W boost constant current module
Module properties: non-isolated step-up module (BOOST)
Input voltage: DC8.5V-48V
Input current: 10A (MAX) exceeds 8A please enhance heat dissipation
Quiescent current: 10mA (12V liter 20V, the output voltage, the higher
the current will increase too quiet)
Output voltage: 10-50V continuously adjustable
Constant] range: 0.2-8A
Temperature: -40 to 85 degrees (ambient temperature is too high, please enhance heat dissipation)
Operating frequency: 150KHz
Conversion efficiency: up to 96%
Overcurrent protection: There
Input reverse polarity protection: Yes,
Installation: 4 3mm screw holes
Connection method: Connection Output
Module size: Length 70mm width 36mm height 13mm
Single module: 50 g
Applications:
1, DIY a power supply, 12V can input and output can 12-50V adjustable.
2, the power supply for your electronic device, according to your
system can set the output voltage value.
3, as the car power supply for your laptop, PDA or a variety of digital
products supply.
4, DIY a mobile notebook power supply: 12V coupled with high-capacity
lithium battery pack, so you can go where light where books.
5, solar panel regulator.
6, to the battery, rechargeable lithium batteries.
7, driving high-power LED lights.

ESP32-DevKitC V4 Getting Started Guide [] This guide shows how to start using the ESP32-DevKitC V4 development board. For description of other versions of ESP32-DevKitC check ESP32 Hardware Reference. What You Need ESP32-DevKitC V4 board USB A / micro USB B cable Computer running Windows, Linux, or macOS You can skip the ESP32-DevKitC V4 Getting Started Guide [] This guide shows how to start using the ESP32-DevKitC V4 development board. For description of other versions of ESP32-DevKitC check ESP32 Hardware Reference. What You Need ESP32-DevKitC V4 board USB A / micro USB B cable Computer running Windows, Linux, or macOS You can skip the introduction sections and go directly to Section Start Application Development. Overview ESP32-DevKitC V4 is a small-sized ESP32-based development board produced by Espressif. Most of the I/O pins are broken out to the pin headers on both sides for easy interfacing. Developers can either connect peripherals with jumper wires or mount ESP32-DevKitC V4 on a breadboard. To cover a wide range of user requirements, the following versions of ESP32-DevKitC V4 are available: different ESP32 modules ESP32-WROOM-32 ESP32-WROOM-32D ESP32-WROOM-32U ESP32-SOLO-1 ESP32-WROVER ESP32-WROVER-B ESP32-WROVER-I ESP32-WROVER-B (IPEX) male or female pin headers. For details please refer to Espressif Product Ordering Information. Functional Description The following figure and the table below describe the key components, interfaces and controls of the ESP32-DevKitC V4 board.

 
 

GY-302 BH1750 BH1750FVI light intensity illumination module 3V-5V
 
 

The WeMos D1 mini is minimal ESP8266 wifi board.
11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire supported(except D0)
1 analog input(3.2V max input)
a Micro USB connection
Compatible with Arduino
Compatible with nodemcu
lots of Shields

 
 

Description:
TDA2030A audio amplifier circuit, often using V-5-pin single in-line plastic package structure. The integrated circuit is widely used in car stereo receiver tape recorders, medium-power audio equipment, with small size, large output power, distortion and other characteristics. And has an internal protection circuit.
Feature:
1. onboard TDA2030A audio power amplifier chip
2. mono 18W amplifier circuit design
3.on-board speaker wiring blocks
4.onboard 10K adjustable resistance, you can adjust the volume of amplification
5. Onboard power indicator
6. the chip has been the main pin leads, you can directly enter the audio signal
7. the working voltage: 6 ~ 12V
8.The peak output current is 3A

 
 

16-Bit Remote Bidirectional I/O Port:
- I/O pins default to input
• High-Speed I2C Interface (MCP23017):
- 100kHz
- 400kHz
- 1.7MHz
• High-Speed SPI Interface (MCP23S17):
- 10 MHz (maximum)
• Three Hardware Address Pins to Allow Up to
Eight Devices On the Bus
• Configurable Interrupt Output Pins:
- Configurable as active-high, active-low or
open-drain
• INTA and INTB Can Be Configured to Operate
Independently or Together
• Configurable Interrupt Source:
- Interrupt-on-change from configured register
defaults or pin changes
• Polarity Inversion Register to Configure the
Polarity of the Input Port Data
• External Reset Input
• Low Standby Current: 1 μA (max.)
• Operating Voltage:
- 1.8V to 5.5V @ -40°C to 85°C
- 2.7V to 5.5V @ -40°C to 85°C
- 4.5V to 5.5V @ -40°C to 125°C

This is a small vibration motor suitable as a non-audible indicator. When the input is high, the motor vibrates, just like your silent mode phone.
Feature:
- Rated voltage: 5.0VDC
- Operating voltage: 3.0 - 5.3VDC
- Rated speed: 9000 rpm minimum
- Rated current: up to 60 mA
- Starting current: up to 90 mA
- Starting voltage: DC3.7V
- Insulation resistance: 10Mohm
- Compatibility: Compatible with UNO R3/ Mega2560
- Great for DIY projects

Stable and reliable chipset CP2102
USB specification 2.0 compliant with full-speed 12Mbps.
Standard USB type A male and TTL 5pin connector. 5pins for 3.3V,TXD,RXD,GND & 5V
All handshaking and modem interface signals
Baud rates: 300 bps to 1.0Mbps.
Byte receive buffer; 640 byte transmit buffer.
Hardware or X-On/X-Off handshaking supported.
Event character support Line break transmission.
USB suspend states supported via SUSPEND pins.
Temperature Range: -40° to 85°.
Supports Windows 98SE, 2003, XP, Vista, Window7, Mac OSX , Linux 2.6.x and 2.4.36
Maximum baud rate 115200 perfect support! No longer distressed STC12 Series, STC11, STC15 series Burn!

DC 3V-6V bis 400kV 400000V Boost Step up Power Module High Voltage Generator
 
 

35 w mono digital amplifier module
1. The Operating voltage: 10 to 30 VDC
2. It use 24 v 2 a power supply voltage output
3. It speaker impedance: 8 ohms Best (4 ohms 6 ohms also be 2)
Specification:
Color: As the picture shows
Size: Approx. 43 * 31 mm
The Original Box: No
 

 
1.This protection board is 3s 4s 5s in common use lithium battery protection board (you can adjust for how many strings to be used), the default delivery is 5S ternary lithium.
2.Specified chip, stable performance, support disconnection protection, over-current protection, over discharge protection, overcharge protection, with balance, etc.
3.Common use for “same port” and “different port”, the protection board uses 15 high-power of ultra-low resistance MOS tube (discharge of 8, charging of 7), in the same port mode can support the discharge current 60A, charging current 60A; different port mode discharge current 80A, charging current 60A.
4.Can use for LMO.Ternary lithium battery.LCO(3.7V)battery packs etc.
Parameter:
FOR Li-POLYMER  LiMnO Protect Parameter(3.6V/3.7V)
Single cell battery overcharge protect voltage : 4.21-4.29 V 
Single cell battery overcharge  protect recover voltage : 4.14-4.24 V 
Overcharge protect delay : 1.5-2.5S 
Single cell battery over-discharge  protect voltage : 2.72-2.88 V  
Single cell battery over-discharge  protect recover voltage : 2.9-3.1 V  
Over charge protective current:100A
Over discharge protective current:100A
Over-discharge protect delay : 0.5-1.5S 
Temperature protect : Yes,have Temperature control interface.
Disconnect protect : Yes 
Shortage protect : Yes 
Shortage delay : 100-600 uS 
Shortage protect recover mode: Off load release.
Contact discharge current:80A
Synopline discharge current:60A
Charging current:60A
balance function:yes
Ampere balance (Current) : 60MA 
Current balance accuracy : 4.14-4.24V

 

Description:
This is a set of transmitter and receiver in one of the photoelectric sensor. The detection distance can be adjusted upon request. The sensor has a detection distance and the visible light interference, cheap, easy to assemble, easy to use features of robot obstacle avoidance, and assembly line piece can be widely used in many occasions.
Electrical Characteristics:
U: 5VDC
I: The 100mA
Sn :3-80CM
Size:
Diameter: 17MM
Sensor length: 45MM
Lead Length: 45CM
Applications:
A production line goods automatic counting device
2, multi-functional reminder
3, the maze robot
Red: connected 4.5-5V power supply high
Yellow: connected microcontroller output TTL level to the microcontroller
Green: GND 0V power low
Photoelectric sensor (photoelectric switch) NPN normally open
Model: E18-D80NK the.
The technical parameters of the photoelectric switch E18:
1, the output current, output, DC / SCR / Relay Control: 100mA/5V supply
2 Current consumption DC <25mA
3, response time <2ms
4, point angle: more than15 °, the effective distance is adjustable from 3-80CM
5,To detect objects: a transparent or opaque body
6, the working environment temperature: -25 °C ~ 55 °C
7, the standard detection object: sunlight 10000LX is the following incandescent 3000LX below
8, Case Material: Plastic

Aluminum shell USB ISP USBISP USBASP ASP Programmer for 51 ATMEL AVR WIN7 64 (Random color)

CJMCU-ADS1115 ultra-compact 16-precision ADC ADC module development board
FEATURES DESCRIPTION
23 ULTRA-SMALL QFN PACKAGE: The ADS1113, ADS1114, and ADS1115 are
2mm × 1,5mm × 0,4mm precision analog-to-digital converters (ADCs) with 16
WIDE SUPPLY RANGE: 2.0V to 5.5V bits of resolution offered in an ultra-small, leadless
LOW CURRENT CONSUMPTION: QFN-10 package or an MSOP-10 package The ADS1113 / 4/5 are designed with precision, power, and.
Continuous Mode: Only 150A ease of implementation in mind The ADS1113 / 4/5.
Single-Shot Mode:. Auto Shut-Down feature an onboard reference and oscillator Data are
PROGRAMMABLE DATA RATE: transferred via an I2C-compatible serial interface; four
8SPS to 860SPS I2C slave addresses can be selected. The
INTERNAL LOW-DRIFT ADS1113 / 4/5 operate from a single power supply
VOLTAGE REFERENCE ranging from 2.0V to 5.5V.
INTERNAL OSCILLATOR The ADS1113 / 4/5 can perform conversions at rates
INTERNAL PGA up to 860 samples per second (SPS). An onboard PGA is available on the ADS1114 and ADS1115 that
I2C INTERFACE: Pin-Selectable Addresses offers input ranges from the supply to as low as
FOUR SINGLE-ENDED OR TWO ± 256mV, allowing both large and small signals to be
DIFFERENTIAL INPUTS (ADS1115) measured with high resolution. The ADS1115 also
features an input multiplexer (MUX) that provides two PROGRAMMABLE COMPARATOR differential or four single-ended inputs.
(ADS1114 and ADS1115)
The ADS1113 / 4/5 operate either in continuous
APPLICATIONS conversion mode or a single-shot mode that
PORTABLE INSTRUMENTATION automatically powers down after a conversion and greatly reduces current consumption during idle
CONSUMER GOODS periods. The ADS1113 / 4/5 are specified from -40 ° C
BATTERY MONITORING to 125 ° C.

Description:
Chip: SIM800L
Voltage: 3.7-4.2V
Support networks: China Mobile, China Unicom and global quad-band network
Module size: 2.5cmx2.3cm
TTL serial port for serial port, you can link directly to the microcontroller. No need MAX232
Power module automatically boot, homing network
Onboard signal lights all the way . It flashes slowly when there is a signal, it flashes quickly when there is  no signal
 
Package Included:
1 X SIM800L GPRS GSM Module

Product Introduction:
1.Size: 4.1*1.6cm
2.Board Thickness:1.6mm
3.Operating Frequency:2.405-2.485GHz
4.Wireless Transmission Speed Rate:250Kbaud
5.Power Consumption:<20mA (receiving);<25mA (transmission)
Features:
1.Lead Out 8 IO Ports
2.Debug Pin
3.Matching Firmware To Achieve Analyzer Function

 
Brand new
Size: about 56mm*45mm*1.2mm
Over voltage range: 4.25-4.35v±0.05v
Over discharge voltage range: 2.3-3.0v±0.05v
Maximum operating current: 0-25A
Maximum transient current: 34-40A
Quiescent current: less than 30uA
Internal resistance: less than 100mΩ
Working temperature: -40--- 50°
Storage condition: -40-- 80°
Effective life: more than30000h
Short circuit protection: Yes, delayed self recovery
 
 
Precautions:
 
Strictly according to the diagram wiring: 0V(B-)3.7V(B1)7.4V(B2)11.1V(B ), Do not deliberately short circuit.
After the line is connected, Need to charge first, then have output.
When the battery is connected in series with 3 groups, Please ensure that the voltage of each battery is the same. If not same, please fill in each set of batteries and then use.
Do not mix the good battery and the battery.
The capacity of the battery internal resistance is closer will be better.
Attention: Do not mix the good battery and poor battery to use. The internal resistance of 3 battery capacity are closer will be better. Please buyers know the professional knowledge of this module before buying
 
 
Note:
 
Due to different producing batches, product details might be a little different. If you minding the difference, please buy it carefully.
Please allow 1-5mm differs due to manual measurement.
Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated sam

 
 

Descirption:
This module is a plant watering alarm - as simple as that. You put it into the soil near a plant and it emits a tiny chirp when the soil is dry, reminding you to water the plant. Chirp uses capacitive humidity sensing as opposed to resistive humidity sensing, this means, it does not make an electric contact with the soil, avoiding electrode corrosion and soil electrolysis and resulting in better accuracy and longer battery life.
Special care has been taken not to make it yet another source of annoyance - Chirp will be silent when it's dark and will restrict itself from making too much noise.
The alarm level can be set for each plant individually. As water is consumed by the plant, Chirp will detect the low moisture level and will start to emit rare short chirps. As more water evaporates, Chirp will increase the alarm rate. Chirp can detect if it's day or night by measuring the amount of ambient light and will not make noise when it's dark.
1.Size:140*15mm
2.Work voltage:3V
Package Included:
1 x CJMCU Plant Watering Alarm Alerter Humidity Moisture Sensor Module Soil Sensor

10pcs AMS1117-3.3 AMS1117 LM1117 1117 3.3V 1A Voltage Regulator

 

Standard: USB2.0 standard, backward compatible, in line with RS485 standard
 
Direction control: automatic data flow control technology, automatic identification and control data transfer direction
 
Baud Rate :300-9216000bps, automatically detect the serial data rate signal
 
Load capacity: supports multipoint, each converter allows connecting 32 RS485 interface device
 
Interface protection: TVS tube protection, USB self-recovery protection
 
Support Windows98/ME/2000/XP/WIN7/Vista, Linux, Mac
 
Supports devices with RS485 interface: surveillance cameras, video capture device, fingerprint attendance machine, PBX, CNC machine, SCM, etc.
 
 
New products, industrial grade USB to 485 modules, 485 chips to facilitate the replacement for the 485 chip hardware debug easy to burn out the case easier to use.
 
USB to 485 programs on the market to analyze the
 
Option One: CH341 485; shortcomings unstable and prone to cause your computer to black;
 
Option Two: PL2303 RS232 RS485; This program is first converted into the serial port using the PL2303, then turn into a serial port 485; advantage of low cost, there may be unstable shortcomings industrial applications, high speed does not fit.
 
Option Three: FT232 485; advantages: industrial-grade applications, speed, anti-jamming capabilities are very good, very suitable for industrial areas, the individual's application. Disadvantages: high cost.
 
 
 

Typical Applications
? Single chip USB to UART (RS232, RS422 or RS485)
? USB to FIFO
? USB to FT1248
? USB to JTAG
? USB to SPI
? USB to I2C
? USB to Bit-Bang
? USB to Fast Serial Interface
? USB to CPU target interface (as memory)
CJMCU-FT232H is a single channel USB 2.0 Hi-Speed (480Mb/s) to UART/FIFO IC. It has the capability of being configured in a variety of industry standard serial or parallel interfaces. The FT232H has the following advanced features:
? Single channel USB to serial / parallel ports with a variety of configurations.
? Entire USB protocol handled on the chip. No USB specific firmware programming required.
? USB 2.0 Hi-Speed (480Mbits/Second) and Full Speed (12Mbits/Second) compatible.
? Multi-Protocol Synchronous Serial Engine (MPSSE) to simplify synchronous serial protocol (USB to JTAG, I2C, SPI (MASTER) or bit-bang) design.
? UART transfer data rate up to 12Mbaud. (RS232 Data Rate limited by external level shifter).
? USB to asynchronous 245 FIFO mode for transfer data rate up to 8 Mbyte/Sec.
? USB to synchronous 245 parallel FIFO mode for transfers upto 40 Mbytes/Sec
? Supports a proprietary half duplex FT1248 interface with a configurable width, bi-directional data bus (1, 2, 4 or 8 bits wide).
? CPU-style FIFO interface mode simplifies CPU interface design.
? Fast serial interface option.
? FTDI’s royalty-free Virtual Com Port (VCP) and Direct (D2XX) drivers eliminate the requirement for USB driver development in most cases.
? Adjustable receive buffer timeout.

be used for multimeter, converted to lithium battery charging
 
For example: VIN Port input 5V solar panels, BAT port can output 4.2V to charger 3.7V 18650 battery
Note: The OUT Port can output an adjustable voltage.
 
Specifications:
Input voltage: 4.5-8V DC
Output voltage: 4.3-27V DC (Continuously adjustable)
Charging voltage: 4.2V DC
Charging current: Max. 1A
Discharging current: Max. 2A
Size: 3.3x2.3cm/1.3x0.91"

 
Working parameters:
Pyroelectric human body infrared sensor module, model: SR-602
Sensing distance: up to 5 meters; recommended 0-3.5M.
Output: high level, H=3.3V, L=0V
Power supply DC: 3.3V-15V
Quiescent current: 20uA
Features and uses:
This module has high sensitivity, fast response, small static power consumption, small size, easy to install, and is installed.
The lens, the pin header has been soldered, and the power supply is provided without debugging. Can be used for body sensor lights, alarms, security,
Access control on-demand imaging, automatic equipment for agriculture, forestry and mining.
Key points:
1. The high level time of the output of this product is adjustable, 2.5 seconds to 1 hour, the output time set at the factory.
It is 2.5 seconds, and you can change one chip resistor if you need to change it. Please read the resistance value corresponding to the typical delay time.
Refer to the relevant form below.
2. Blocking time, 2 seconds, not adjustable.
3. The factory is defined as repeatable trigger and cannot be changed.
4. The supply voltage of this module is 3.3V to 15V, and the limit voltage is 2.8V to 18V.
5. Module output timing is: output high level for 2 seconds after power-on, then go low, enter standby
status. If the delay time is changed, the time when the module outputs a high level after power-on will increase accordingly, which can be understood as
The startup time after entering the normal working state after the electric power will increase.
6. After installing the photosensitive element, it does not work during the day, work at night, does not contain photosensitive components, and works all day ( There are no photodiodes on the module,please purchase separately if needed. Recommended: ordinary F3 photodiode )
It is considered that there is no photosensitive element installed.
7. This module is very sensitive, pay attention to the installation position, try to avoid the heat source radiation source (air outlet / direct sunlight)
8. The sensitivity of this module is adjustable, and you need to change a chip resistor. Please read the relevant table below for details.
grid.
9. When soldering with 220V ordinary soldering iron, it is necessary to unplug the power supply before welding. It is recommended to use
24V low voltage soldering iron, such as domestic white light 936.
10. If you follow the MCU and connect the lamp, please read the reference circuit diagram below.

Battery Shield For D1 mini single lithium battery charging & boost
 
 

 
The module is a 12-pin display module with a 4-point common digital tube (0.36 inch) with a clock point. The driver chip is TM1637. It only needs 2 signal lines to enable the MCU to control the 4-bit 8- Segment digital tube.
The module features are as follows:
Display device is 4-digit yang red digital tube
Digital tube 8-level grayscale adjustable
Control interface level can be 5V or 3.3V
4 M2 screw positioning holes for easy installation
Project

Minimum value

Typical value

Maximum

Unit
Voltage

3.3

5

5.5

VDC
Current (@5V)

-

30

80

mA
Size

42X24X12

Mm
Weight

8

g
Control interfaceA total of 4 pins (GND, VCC, DIO, CLK), GND is ground, VCC is the power supply, DIO is the data input and output pin, CLK is the clock signal pin;
Digital Tube: 4-digit common anode with a 0.36-inch digital tube with a score point, highlighted in red;
Positioning hole: 4 M2 screw positioning holes, the hole diameter is 2.2mm, which makes the module easy to install and position, and realize the module combination;
Overview of the library routines:
1. ClockDisplay: Use the timer 1 of the MCU on the motherboard to time and let the 4-digit display display.
2. NumberFlow: 0~9, A, b, C, d, E, F and other 16 characters flow from right to left.
3. StopWatch: Use the timer 1 of the MCU on the motherboard to time, and use the button to realize the stopwatch function.
 
Experiment equipment:
An Ard uino compatible motherboard Cat duino (not familiar with open source hardware can be understood as the Atmega328P microcontroller development board) and a mini USB cable;
1 4-digit digital tube display module;
4 male to female DuPont lines for connecting the control interface of the module and the Cat duino development board;
Experimental procedure:
1. Use 4 male to female DuPont lines 4-digit digital display module Connected to Cat duino, as shown in the following table and figure
Cat duino

Cable

4-digit digital display module
GND

black line

GND
5V

Red line

VCC
D2

Yellow line

DIO
D3

White line

CLK
 
2. Connect the Catduino with mini USB. If you are using the motherboard for the first time, its USB to serial driver can find the USB Drivers from the drivers in the Ard uino IDE directory.
3. Reopen the Ard uino IDE and click the Open button on the toolbar to open the NumberFlow routine in DigitalTube.
Select the serial port, board name, click the Burn button, you can burn. This routine can make 16 characters from 0~9, A, b, C, d, E, F, etc. flow from right to left.
The function of adjusting the gray scale of the digital tube is the set() function in the class TM1637, and the input parameter is 0~7. The larger the number, the higher the brightness.