ArduinoAmstradCPCJoystick/main.py

import serial
import uinput
import struct

ev = (uinput.BTN_SOUTH, uinput.BTN_EAST, uinput.ABS_X + (0, 100, 0, 0), uinput.ABS_Y + (0, 100, 0, 0))
device_p3 = uinput.Device(ev, name="Zockbox3")
device_p4 = uinput.Device(ev, name="Zockbox4")

p3int = 0
p4int = 0 

s = serial.Serial('/dev/ttyACM0', 9600)

def handle_ctrl(controller, byte):
    if byte & 0x20:
        controller.emit(uinput.BTN_SOUTH, 1)
    else:
        controller.emit(uinput.BTN_SOUTH, 0)

    if byte & 0x10:
        controller.emit(uinput.BTN_EAST, 1)
    else:
        controller.emit(uinput.BTN_EAST, 0)

    if byte & 0x08:
        controller.emit(uinput.ABS_X, 100)
    elif byte & 0x04:
        controller.emit(uinput.ABS_X, 0)
    else:
        controller.emit(uinput.ABS_X, 50)

    if byte & 0x02:
        controller.emit(uinput.ABS_Y, 0)
    elif byte & 0x01:
        controller.emit(uinput.ABS_Y, 100)
    else:
        controller.emit(uinput.ABS_Y, 50)


while s.isOpen():
    control = s.read(2)
    for c in struct.unpack('>BB', control):
        i = 3 if c < 64 else 4
        c = c & 0x3f
        ctrl = device_p3 if i == 3 else device_p4
        if i == 3:
            p3int = c
        else:
            p4int = c
        handle_ctrl(ctrl, c)