import serial

channels = [
    192,  # pan
    0,  # tilt
    134,  # dimmer
    255,  # R
    255,  # G
    255,  # B
    0,  # W
    1,  # movement speed
    0,  # RST
]

ser = serial.Serial("/dev/ttyUSB0", 115200)

payload = bytearray()
payload.extend(5 * [0])
payload.extend(channels)

ser.write(payload)
ser.flush()

print(ser.read_all())