Oct 17

Using Homie for a temperature sensor

This entry is part 2 of 3 in the series esp8266

Reading time: 2 – 2 minutes

The second episode of ESP8266 programming series. In the next video I describe how to code a firmware for ESP8266 using Arduino IDE. The purpose of that firmware is create a temperature sensor and publish the reading in a MQTT broker.

Schema of the system:


Pictures of the system, I used ESP12E Devkit and some cheap parts:




References in Aliexpress where I bought the hardware:

thermistor psu

Firmware source code is publishied in my github account: temperature sensor source code for ESP8266.