def send_join_ack(radio, mfrid, productid, sensorid): # send back a JOIN ACK, so that join light stops flashing response = OpenThings.alterMessage(JOIN_ACK, header_mfrid=mfrid, header_productid=productid, header_sensorid=sensorid) p = OpenThings.encode(response) radio.transmitter() radio.transmit(p, inner_times=2) radio.receiver()