Tubbybot is a simple two wheeled bot with no sensors. It it has RGB led which glows the body of the bot and OLED display as its eyes. The Tubby bot can be switched on by using magnet. https://github.com/codelectron/TubbyBot http://codelectron.com/tubby-bot-a-wifismartphone-controlled-two-wheeled-bot-step-by-step-guide/
This is a companion discussion topic for the original entry at https://community.robotshop.com/robots/show/tubby-bot-a-wifi-smartphone-controlled-two-wheeled-bot-step-by-step-guide