PicoGrubKeyBoard

Pi Pico - CircuitPython Program to act as Keyboard for GRUB boot

A small Python script for Raspberry Pi Pico using CircuitPython and the adafruit_hid library to provide keyboard input to the Linux GRUB bootloader. This is useful in my case because I'm using Logi Mx Keys Bluetooth connected keyboard which is not active at that point in the boot sequence.

Persistence

This version supports persistence of the selected boot image. This requires installing the included boot.py file which prevents makes the storage READ ONLY via the USB interface. This can be disabled using a REPL connection such as that provided by the Mu editor and entering the following commands:

import os
os.listdir("/")
os.rename("/boot.py","/boot.bak")

Required Libraries

• adafruit_display_text
• adafruit_hid
• adafruit_debouncer.mpy
• adafruit_rgbled.mpy
• adafruit_st7789.mpy
• adafruit_ticks.mpy
• simpleio.mpy