“Doubutsu Sentai Zyuohger (JP HP)”‘s transformation item “Zyuoh Changer” is shaped like a cellphone. Therefore we added a real phone ability by Twilio, Raspberry pi, 3G SIM, and Lightblue Bean. It took as long as 3 months to create this. It was a hard work (After published this article, I realized Qiita is not the place to announce this sort of case study.)