A proximity sensor detects the ball and starts up a pair of 540 R/C motors, ... Posted in Tool Hacks Tagged arduino, proximity sensor, router, VCNL4020, woodworking. Gesture Based Security Lock.

And since the Arduino works as an AVR programmer you don’t need special hardware to program the device. Posted in Microcontrollers Tagged attiny13 , infrared , ir , phototransistor , proximity ...