Hidden Mouse Jiggler

code.py

import time
import board
import digitalio
import storage
import usb_hid
from adafruit_hid.mouse import Mouse
import usb_cdc

#usb_hid.enable(devices=(usb_hid.MOUSE,))        ###AttributeError: 'module' object has no attribute 'MOUSE'

switch = digitalio.DigitalInOut(board.SLIDE_SWITCH)
switch.direction = digitalio.Direction.INPUT

if switch.value:
    print("Hiding Drive and Serial")
#    storage.disable_usb_drive()                ###RuntimeError: Cannot change USB devices now
#    usb_cdc.disable()                          #  <= This seems to work
else:
    print("Debug mode")

mouse = Mouse(usb_hid.devices)

while True:
    print("Looping")
    mouse.move(x=20)
    time.sleep(5)
    mouse.move(x=-20)
    time.sleep(5)

Running this code on a CPB with:

Adafruit CircuitPython 7.0.0-alpha.2-584-g25a44cb77 on 2021-05-15; Adafruit Circuit Playground Bluefruit with nRF52840

The behaviour should be a mouse jiggler with or without visibility of CIRCUITPY drive (and CDC console) depending on the slide switch position.

But:

1. This code fail on usb_hid.enable(devices=(usb_hid.MOUSE,)):

Press any key to enter the REPL. Use CTRL-D to reload.
soft reboot

Auto-reload is on. Simply save files over USB to run them or enter REPL to disable.
code.py output:
Traceback (most recent call last):
File "code.py", line 9, in
AttributeError: 'module' object has no attribute 'MOUSE'

Code done running.

Press any key to enter the REPL. Use CTRL-D to reload.

Adafruit CircuitPython 7.0.0-alpha.2-584-g25a44cb77 on 2021-05-15; Adafruit Circuit Playground Bluefruit with nRF52840

2. It also fail on storage.disable_usb_drive():

Auto-reload is on. Simply save files over USB to run them or enter REPL to disable.
code.py output:
Hiding Drive and Serial
Traceback (most recent call last):
File "code.py", line 16, in
RuntimeError: Cannot change USB devices now

Code done running.

Press any key to enter the REPL. Use CTRL-D to reload.

Adafruit CircuitPython 7.0.0-alpha.2-584-g25a44cb77 on 2021-05-15; Adafruit Circuit Playground Bluefruit with nRF52840

As mentioned, you need to put
usb_hid.enable(devices=(usb_hid.Device.MOUSE,)) and storage.disable_usb_drive() in boot.py. By the time you get to code.py, the USB devices are set already.

And it is usb_hid.Device.MOUSE. That should work.

I will be writing a guide soon.