doorbell: 5s threshold for MQTT notifications

doorbell/klingel_sender_nano_serial/doorbell.py

@@ -20,6 +20,11 @@ logger.info('Initializing')
 
 
 arduino = serial.Serial('/dev/Doorbell', 9600, timeout=.1)
+# for ESP32
+#arduino.setDTR(False)
+#arduino.setRTS(False)
+
+last_ring = time.time()
 
 while True:
     data = arduino.readline()[:-2] #the last bit gets rid of the new-line chars
@@ -35,7 +40,9 @@ while True:
             try:
                 response = urllib.request.urlopen('http://192.168.178.60/bell/on', timeout=5).read().decode('utf-8')
 
-                # send MQTT
+                # send MQTT if last ring was more than 5 seconds ago
+                if ((time.time() - last_ring) > 5):
+                    last_ring = time.time()
                     headers = {
                         "Authorization": "Bearer eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJjYjY5NjA5NmY0N2E0NmZlOGEzYjczOGYzYmUzOTk5ZSIsImlhdCI6MTY2MTM0NDgxOSwiZXhwIjoxOTc2NzA0ODE5fQ.z9fzbVOA1Pbur3Zb07481n-SoYesj8cetw-CX6WPmTs",
                         "Content-Type": "application/json"