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i2c-display-mqtt's Introduction

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

scheme

scheme

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