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#!/bin/python3
from bluepy.btle import Peripheral, ADDR_TYPE_PUBLIC, BTLEDisconnectError
import threading
import time
import sys
mac = sys.argv[1]
dev = None
messages = []
def verify_connection():
global dev
while dev == None or dev.getState() == 'disc':
try:
dev = Peripheral(mac, ADDR_TYPE_PUBLIC)
except BTLEDisconnectError as e:
continue
def makemsg(r, g, b, l=0):
return bytes([
int(g > 0), g,
0x00, 0x00,
int(b > 0), b,
int(r > 0), r,
int(l > 0), l,
])
def keep_alive():
while True:
global messages
messages.append((0x0001, bytes(10)))
time.sleep(10)
def user_input():
for line in sys.stdin:
r, g, b, l = [ int(x, 16) for x in [ line.strip()[i:i+2] for i in range(0, 8, 2) ] ]
messages.append((0x002a, makemsg(r, g, b, l)))
threading.Thread(target=keep_alive).start()
threading.Thread(target=user_input).start()
verify_connection()
while True:
if len(messages) < 1: continue
message = messages.pop(0)
verify_connection()
dev.writeCharacteristic(message[0], bytearray(message[1]))
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