Changing SPI pins RP2040

[maxgerhardt]

Are you using the ArduinoCore-mbed or Arduino-Pico in your platformio.ini?

For ArduinoCore-mbed see

Change Pi Pico Serial and I2C Pins and use both I2C Ports

The constructors for these classes are already there, you just have to use them to create new objects. for SPI for I2C for Serial Test out this program #include <Arduino.h> #include <Wire.h> #include <SPI.h> // available pins per https://forum.arduino.cc/t/pi-pico-arduino-ide-pin-mapping-for-gpio-in-ide/903691 // default "Wire" object: SDA = GP4, SCL = GP5, I2C0 peripheral // our new wire object: #define WIRE1_SDA 2 // Use GP2 as I2C1 SDA #define WIRE1_SCL 3 // Use GP3 as I2…

(You would need to construct a new SPI object and pass it into the RadioHead lib for it to use it).

For Arduino-Pico see

Simple SPI communication example for Raspberry Pi Pico using Arduino Framework

In the Arduino-Pico core, the pins for the default SPI objects are reassignable per docs. With ArduinoCore-mbed, you’re out of luck. Easier to adapt the library to accept a SPI*.

(You can simply call SPI.setSCK(xxx); etc to change all pins.)