PhoneBot - A Bipedal Robot Based on an Old Smartphone
An old smartphone can be turned into a robot — startups have come up with PhoneBot: a bipedal robot that runs on a regular Android phone.
The final transformer is 48 cm long and weighs 1.8 kg. Inside there are 13 motors that allow the robot to follow its owner, fall down and get back up. The entire assembly costs about $400, not including the phone.








