Comments on A Twitter Powered Gumball Machine Built on ThingSpeak + Arduino Hans Scharler is an Internet of Things pioneer. He writes about IoT and ThingSpeak IoT platform features.2019-05-20T14:52:33Zhttps://blogs.mathworks.com/iot/2012/06/27/a-twitter-powered-gumball-machine-built-on-thingspeak-arduino/feed/atom/WordPress