I use the core below - here are the instructions for the legacy Arduino IDE I'll cover the new Arduino 2 IDE, which was very easy to setup Raspberry Pi Pico Arduino core, for all RP2040 boards Documentation See along with the examples for...
The is a 16-bit, general purpose parallel I/O port expander for I2C bus applications. The 16-bit I/O port functionally consists of two 8-bit ports (PORTA and PORTB). The MCP23017 can be configured to operate in 8-bit or 16-bit modes. Lets look at the pinout [caption...

More info on the Arduino Yun can be found at the Arduino Yun pinout This is a fantastic pinout, I advise you to visit the site listed in the.

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