Esp8266 - esp easy

[affinite]

Ranur


I had this working a few weeks ago.
an extract from my notes ...

Can send over MQTT by using
Publish - ESP/cmd with payload/message - LCD,Lin,Row,”text” or value
where ESP is the NodeMCU device name 
Tested by sending from MQTT app on my pc.

Can also publish using Node-Red flow

1. Config ESP controller to publish data to local or public broker as vessels/self/%tskname%/%valname%
   e.g BoatyMcboatface/electrical/batteries/house/voltage
   
2. Use MQTT In Node to input data from broker
   Set Topic to BoatyMcboatface/electrical/batteries/house/voltage
   
3. Wire MQTT In node to Function node
   Function node Properties
   msg.payload = "LCD,2,1,WiFi..." + msg.payload;
   return msg;
   
4. MQTT Out Node with topic set as ESP Device name/cmd
   

I plan to fit the LCD2004 to display my tank sensor values
Fuel, Fresh and Black - read by ADS1115/ESP8266

Steve