[Dustin Andrews] built this add-on board which works as a proximity sensor. He wanted a standalone sensor for his Arduino projects which would use a single pin as a trigger. This lets him alert the… ...

For this project, you’ll need to write a program that tells the Arduino to trigger the camera and flash when it detects a sound. 2. Piezoelectric Sensor: This sensor will act as your sound detector.

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.