Multiple Buzz! controler on one Raspberry Pi.

super_multi.py

"""
    Turn on all the LEDs from each Buzz! controler one after the other.
    Work with both kind of wired Buzz! controler.

    Require to install hid library, not an easy task.
"""

import hid
import time

from random import randrange

vid = 0x054c #  idVendor           0x054c Sony Corp. / Logitech
#pid = 0x1000 #  idProduct          0x1000 Wired Buzz!
pid = 0x0002 #  idProduct          0x0002 Logitech Trebek(tm) controllerV1


all_off = b'\x00\x00\x00\x00\x00\x00\x00\x00'
all_on =  b'\x00\x00\xff\xff\xff\xff\x00\x00'

blink = [
    b'\x00\x00\xff\x00\x00\x00\x00\x00',
    b'\x00\x00\x00\xff\x00\x00\x00\x00',
    b'\x00\x00\x00\x00\xff\x00\x00\x00',
    b'\x00\x00\x00\x00\x00\xff\x00\x00',
    ]

button_release = b'\x00\x00\x00\x00\xf0'

button = [
    b'\x00\x00\x01\x00\xf0',
    b'\x00\x00 \x00\xf0',
    b'\x00\x00\x00\x04\xf0',
    b'\x00\x00\x00\x80\xf0',
    ]

if True:
    # First see what's connected that we know about
    devices = []
    for d in hid.enumerate(0, 0):
        print("Adding: ", d)
#       if ((d['vendor_id']==vid) & (d['product_id']==pid)):
        if (d['vendor_id']==vid):
            devices.append(d['path'])

    print("All devices:", devices)

while True:

    for index, device in enumerate(devices):

        try:
            h = hid.Device(path=device)
            print("Index: ", index, "Device manufacturer: ", h.manufacturer, "Product: ", h.product)

            h.write(all_off)           # Clear the Buzz Controller LEDs
            h.nonblocking=1            # Make sure we are not blocked on read

            time.sleep(1)
            h.write(all_on)           # Clear the Buzz Controller LEDs
            time.sleep(1)

        except hid.HIDException:
            print("Cannot write ... sleep and retry")
            time.sleep(1)