updates from pi

relay.py

@@ -3,13 +3,16 @@ import time,sys
 from paho.mqtt import client as mqtt_client
 
 #mqtt settings
-broker = '192.168.2.2'
+broker = '192.168.3.2'
 port = 1883
-uname = 'ecyhass'
-pw = 'ecyhass1216'
+#uname = 'ecyhass'
+#pw = 'ecyhass1216'
 topic_sensor = 'garage/door_sensor'
 topic_control = 'garage/door_control'
 client_id = str(210)
+BUTTON_TIME=1  #seconds
+
+RUN=1
 
 #GPIO settings
 relay_pin = 15
@@ -19,25 +22,46 @@ gpio.setmode(gpio.BOARD)
 gpio.setup(relay_pin,gpio.OUT)
 gpio.setup(sensor_pin,gpio.IN,pull_up_down=gpio.PUD_DOWN)
 
-def mqtt_connect():
-    def on_connect(client, userdata, flags, rc):
-        if rc == 0:
-            print("Connected to MQTT Broker")
-        else:
-            print("Failed to Connect MQTT")
+def mqtt_on_message(client, userdata, msg):
+    data=str(msg.payload.decode("utf-8"))
+    print("message received " ,data)
+    if data=="set_low":
+        set_relay(0)
+    if data=="set_high":
+        set_relay(1)
+    if data=="open_door":
+        press_button(client)
+    #if data=="end":
+    #    end()
+    #    client.loop_stop()
 
+def mqtt_on_connect(client, userdata, flags, rc):
+    if rc == 0:
+        print("Connected to MQTT Broker")
+    else:
+        print("Failed to Connect MQTT")
+
+
+def mqtt_setup():
+    #Connect
     client = mqtt_client.Client(client_id)
-    client.username_pw_set(uname,pw)
-    client.on_connect = on_connect
-    client.connect(broker,port)
+    #client.username_pw_set(uname,pw)
+    client.on_connect = mqtt_on_connect
+    while(1): # keep trying until the network is up
+        try:
+            client.connect(broker,port,keepalive=60)
+            break
+        except:
+            print("RELAY:Cant connect.  waiting 1s")
+            time.sleep(1)
+    print("RELAY: Subscribed")
+    #Subscribe
+    client.subscribe(topic_control)
+    client.on_message = mqtt_on_message
     return client
 
-def mqtt_subscribe(client):
-    def on_message(client, userdata, msg):
-        print(f"Received `{msg.payload.decode()}` from `{msg.topic}` topic")
-
-    client.subscribe(topic_control)
-    client.on_message = on_message
+def publish_status(client):
+    client.publish(topic_sensor,str(get_sensor()),retain=True)
 
 def set_relay(value):
     if value==1:
@@ -48,19 +72,25 @@ def set_relay(value):
 def get_sensor():
     return gpio.input(sensor_pin)
 
-def set_from_sensor():
-    set_relay(get_sensor())
+def press_button(client):
+    set_relay(1)
+    time.sleep(BUTTON_TIME)
+    set_relay(0)
 
 def end():
-    gpio.cleanup()
-    exit()
+    print("stop")
+    RUN=0
 
 def main():
-    mqtt_subscribe(mqtt_connect())
-    while(1):
-        continue
-#        set_from_sensor()
-#        time.sleep(.25)
+    print("Start Relay Contorl")
+    client=mqtt_setup()
+    client.loop_start()
+    publish_status(client)
+    while(RUN):
+        time.sleep(5)
+        publish_status(client)
+    gpio.cleanup()
+    exit()