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Jyrki Hämäläinen edited this page Feb 8, 2020
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Welcome to the mqtt-playground wiki!
Sub pages
- Communicating from Arduino through ESP8266 Wifi in AT mode
- Communicating from Arduino through ESP8266 Wifi in Native mode
- Flashing ESP8266
- MQTT and Node Red
- Miscellanious backgrouns stuff
2020-02-08
- Very simple Node Red flow created to connect through MQTT broker running in Raspberry Pi to temperature and humidity measurements and dummy LED heating control done in Arduino UNO.
- Arduino communication is using EspWifi library and MQTT PubSubClient library. They do not work very well together - publishing works, but subscriptions do not.
- Alternative approach identified to use ESP8266 as network protocol gateway - serial communication would just transfer data packages (measurements from arduino and controls from ESP), so no async modem stuff needed there.
- formatting of published and subscribed data packages to JSON could be a nice way - if Arduino JSON library can keep up with the pace.