We’d seen it done with buttons, switches, gestures, capacitive touch, and IR remote, but never like this. [electron_plumber] made an LED that can be blown out like a candle, and amazingly it … ...

The Air Force Research LaboratoryResponsible for the flexible Arduino board has been led in conjunction with NextFlex, America’s Flexible Hybrid Electronics Institute. The team has now unveiled ...

You can throw a Raspberry Pi camera and OpenCV at the problem and approach it through software, or you can buy an off-the-shelf RGB sensor and wire it up to an Arduino.