Fomu keyboard test

keytest.py

import time
 
import microcontroller
import digitalio
from adafruit_hid.keyboard import Keyboard
from adafruit_hid.keyboard_layout_us import KeyboardLayoutUS
from adafruit_hid.keycode import Keycode
 
# A simple neat keyboard demo in CircuitPython
 
# The pins we'll use, each will have an internal pullup
keypress_pins = [microcontroller.pin.TOUCH1, microcontroller.pin.TOUCH2]
# Our array of key objects
key_pin_array = []
# The Keycode sent for each button, will be paired with a control key
keys_pressed = [Keycode.A, "Hello World!\n"]
control_key = Keycode.SHIFT
 
# The keyboard object!
keyboard = Keyboard()
keyboard_layout = KeyboardLayoutUS(keyboard)  # We're in the US :)
 
# Make all pin objects inputs with pullups
for pin in keypress_pins:
    key_pin = digitalio.DigitalInOut(pin)
    key_pin.direction = digitalio.Direction.INPUT
    key_pin.pull = digitalio.Pull.UP
    key_pin_array.append(key_pin)
 
# led = digitalio.DigitalInOut(board.D13)
# led.direction = digitalio.Direction.OUTPUT
 
print("Waiting for key pin...")
 
while True:
    # Check each pin
    for key_pin in key_pin_array:
        if not key_pin.value:  # Is it grounded?
            i = key_pin_array.index(key_pin)
            print("Pin #%d is grounded." % i)
 
            # Turn on the red LED
            # led.value = True
 
            while not key_pin.value:
                pass  # Wait for it to be ungrounded!
            # "Type" the Keycode or string
            key = keys_pressed[i]  # Get the corresponding Keycode or string
            if isinstance(key, str):  # If it's a string...
                keyboard_layout.write(key)  # ...Print the string
            else:  # If it's not a string...
                keyboard.press(control_key, key)  # "Press"...
                keyboard.release_all()  # ..."Release"!
    time.sleep(0.01)

I tested this and it works on the Fomu Hacker. It just starts very slowly for me (+30s).

The required libraries are available here: https://circuitpython.org/libraries
The circuitpython bitstream is also available there.