Send soil moisture value to a MQTT broker

This LUA script is for ESP8266 hardware.

Description

Read soil moisture sensor YL-69.

Send data every 5 secs to MQTT broker.

Files

• config.lua: Configuration variables
• init.lua: Connect to a wifi AP and then execute main.lua file
• main.lua: Main file
• ntp.lua: Network time protocol lib

Principle

1. Start a MQTT client and then try to connect to a MQTT broker
2. Publish data every 5 secs to broker

Scheme

The box is avaible to print here : http://www.thingiverse.com/thing:1660436