Want to measure solar radiation but cant afford a Pyranometers? Well, make your own device with your Arduino board using this guide.

I decided to make one. I want use Arduino UNO with Ethernets shield, and STC-013 sensor. The data are visible on MQTT Dashboard by Cayenne.

Periodically store celsius values of six TMP36 sensors to a csv file on an SD card and show values on LCD.