As an example, here's the driver for small TFT screens of the type that is built into the M5Stack. This is an SPI-attached device: https://github.com/toitware

As an example, here's the driver for small TFT screens of the type that is built into the M5Stack. This is an SPI-attached device: https://github.com/toitware/toit-color-tft/blob/main/src/color_tft.toit https://github.com/toitware/toit-color-tft/blob/main/src/col... If you just have an M5Stack Core2 and want to play with it, then you don't need to write a new driver though. Probably you want the examples from this package: https://pkg.toit.io/package/github.com%2Ftoitware%2Ftoit-m5stack-core2@v1.1.0 https://pkg.toit.io/package/github.com%2Ftoitware%2Ftoit-m5s... (The implementation of that package in the src directory is an example of using an I2C peripheral.)