mathoudebine / nodemcu-dht22-webserver-mqtt-thingsboard

A NodeMCU Lua program to serve current temperature/humidity as web page and send it to ThingsBoard using MQTT

NodeMCU temperature sensor with MQTT/WebServer output

Lua program for NodeMCU open-source IoT platform.

The code reads temperature and humidity from a DHT11/DHT22 sensor and serves it as HTML data to every browser consulting its IP.

The data is also uploaded to ThingsBoard MQTT broker to be displayed on your web dashboard.

Pre-requisites

• A NodeMCU 2nd generation / v1.0 / V2 board (although it may work on any other board with ESP8266 ESP-12E module)
• NodeMCU latest firmware (>= 2.2.1-master_20190405 / SDK 2.2.1(6ab97e9)) with included modules : dht,http,mqtt,wifi
• DHT11 / DHT22 / AM2302 sensor
• A Thingsboard server / live demo account with an existing device

HowTo

The .ini files have to be edited with your Wi-Fi access point and Thingsboard account configurations

The DHT/AM data wire shall be plugged to D4 pin (or edit source code to use another pin)