1. Introduction
2, Characteristics
1, There are digital IO pin headers (pins from D0 to D13) and analog IO (pins from A0 to A7) pin headers. (They can meet the need to connect and insert expansion modules with Dupont wires).
2, equipped with an external power adapter interface, meeting the requirements for driving high-power modules.
3, It has a 3.3V power pin that can be used for modules with small external current requirements.
3, Expansion Board Parsing
Digital IO pin (D0-D13)
You can specify these IO ports as digital outputs, that is, output high level or low level.Among (D2 and D3 pins can be used as hardware interrupt pins.)D3,D5,D6,D9,D10,D11 pins can output analog signals).
Analog IO pin (A0-A7)
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).
TX/RX/G/V 4P pin
The circuit design of this socket is convenient for connecting with some serial communication modules.
G/V/SDA/SCL 4P pin
The socket circuit design is convenient for connecting with some I2C communication modules.