https://blogs.mathworks.com/iot/2012/06/04/solar-hot-water-temperature-monitoring-with-arduino-thingspeak/?s_tid=feedtopost Hans Scharler is an Internet of Things pioneer. He writes about IoT and ThingSpeak IoT platform features. Tue, 05 Jun 2012 14:51:40 +0000 hourly 1 https://wordpress.org/?v=6.1.1