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#!/usr/bin/env python
#
# Basic example for Fadecandy, talking directly to the
# Teensy using PyUSB.
#
# Micah Elizabeth Scott
# This example code is released into the public domain.
#
import usb.core
import usb.util
import random
import time
import binascii
dev = usb.core.find(idVendor=0x1d50, idProduct=0x607a)
if not dev:
raise IOError("No Fadecandy interfaces found")
dev.set_configuration()
print "Serial number: %s" % usb.util.get_string(dev, 255, dev.iSerialNumber)
while True:
for index in range(25):
if index == 24:
# Final
control = index | 0x20
else:
control = index
data = chr(control) + ''.join(chr(random.randrange(256)) for i in range(63))
dev.write(1, data)
print binascii.b2a_hex(data)
time.sleep(0.1)
print
time.sleep(2)