1. Introduction
2, Characteristics
1, There are digital IO pin headers (pins from D2 to D13) and analog IO (pins from A0 to A5) pin headers.(Can meet the need for using Dupont line plug-in expansion modules).There is also a reset interface pin for developers to use.
2, There are 2 4P PH2.0 sockets. One 4P header.
3, It has a 3.3V power pin that can be used for modules with small external current requirements.
A reset button and a button connected to the development board's D2 pin
5, equipped with a DC power input port with PH2.0 2P specification interface, the input voltage range is 6-12V.
3, Expansion Board Parsing
Digital IO pin (D2-D13)
You can specify these IO ports as digital outputs, that is, output high level or low level.The D3 pin can be used as a hardware interrupt pin.D3, D10, D11 pins can output analog signals.
Analog IO pin (A0-A5)
You can specify these IO ports for simulated input and simulated input. The simulated input returns a value of (0-1023). The simulated output value is (0-255).
G/V/A4(SDA)/A5(SCL) 4P socket
This socket is convenient for mating with some modules that use a PH2.0 4P interface. (Compatible module: HS-S63-L)TCS342 color sensor, HS-F14LTM1650 four-digit LED digital tube module, HS-F15LTM637 four-digit clock digital tube module, HS-F19LOLED display, HS-F21LLCD1602 display, )
GND/A1/A0/VCC 4P socket
The socket is convenient for connecting with some modules that use a PH2.0 4P interface. (Compatible module: HS-SR04L)Ultrasonic Sensor)
D1 (TX) / D0 (RX) / GND / VCC 4P Header
This interface is set as a serial communication interface.