Home temperature, relative humidity and light measurement test using an ESP8266 with DHT11 and a photoresistor. LUA only, with NodeMCU firmware. The video channel is not mine, but interesting.
Click on 'More Information" :-)
Pellet Boiler monitored by a Yoctopuce Yocto-Knob to allow more advance control & notifications. Four temperature sensors and one light sensor to monitor the alarm LED are connected.
Nov 2014, Now using TalkBack to control boiler from mobile phone.