def on_message(mosq, obj, msg):
signal = msg.topic.split('/')[1]
value = msg.payload
print "MQTT received " + signal + ": " + str(value)
# Create the Hardwire Signal if it doesn't exist yet
if signal in signals:
pass
else:
signals[signal] = Signal(signal, value)
# Update signal value, converting to boolean if necessary
if value in ["True", "true", "T", "t"]:
signals[signal].value = True
elif value in ["False", "false", "F", "f"]:
signals[signal].value = False
else:
signals[signal].value = value
# Register a signal handler for checkbox. Every time the checkbox is clicked,
# this function executes and sets the GPIO output value to the checkbox value.
@checkbox.on_change()
def set_ouput(name, value):
"""Handle changes to the value of output_pin."""
print "Setting P8_10 to " + str(value)
if value:
GPIO.output("P8_10", GPIO.HIGH)
else:
GPIO.output("P8_10", GPIO.LOW)
# Run the Hardwire server.
server.run()
while True:
try:
# Poll the input pin and update the corresponding Hardwire signal.
# For a more advanced approach, use the BBIO event callback
# functionality.
sleep(0.1)
if GPIO.input("P8_14"):
status.value = True
else:
status.value = False
except KeyboardInterrupt:
server.stop()
GPIO.cleanup()
sys.exit(0)
