3. WCH

Functions

This wch board has these functions working at this moment:

• digitalWrite
• digitalRead
• analogWrite
• analogRead

Coming soon there will be more functions like:

• Serial
• SPI
• I2C
• USB
• Touch
• BLE periferico
• BLE host
• Low power

PINOUTS.

PORT_A There are 16 pins in the portA of which 16 are I/O digital pins, only 14 are analog inputs and there are 4 PWM channels for analog outputs.

PORT_B There are 24 pins in the portA of which 24 are I/O digital pins, no analog inputs and there are 9 PWM channels for analog outputs.

Warnings

You must not use these pins:

• PB10 and PB11 only because are connected to the USB-C and if you put a LOW/HIGH signal you will provocate a short circuit.

You must be very careful with these pins:

• PB6 is connected to the reset button, you must only use it as an input.