Display 3 sensor values from a MQTT topic

This LUA script is for ESP8266 hardware.

Description

MQTT client displaying 3 values on a i2c 128x64 OLED display using U8G library

##Files

• config.lua: Configuration variables
• init.lua: Connect to a wifi AP and then execute main.lua file
• mqtt_function.lua: Generic functions for MQTT broker
• main.lua: Main file

Principle

1. Start a MQTT client and then try to connect to a MQTT broker
2. Subscribe to a topic and update values on the display

Scheme