Remove serial gateway and update entity IDs.

customise.yaml

@@ -64,8 +64,8 @@
     !secret linode_mail_server_sensor:
       friendly_name: !secret linode_mail_server_friendly_name
 
-    sensor.temperatureandhumidity_3_0:
+    sensor.temperatureandhumidity_3_0_2:
       friendly_name: "Greenhouse Humidity"
 
-    sensor.temperatureandhumidity_3_1:
+    sensor.temperatureandhumidity_3_1_2:
       friendly_name: "Greenhouse Temperature"

packages/mysensors.yaml

 ---
 mysensors:
   gateways:
-    - device: /dev/ttyUSB0
-      persistence_file: '/config/mysensors.json'
     - device: mqtt
       persistence_file: '/config/mysensors-mqtt.json'
       topic_in_prefix: 'mysensors/out'