Hopefully this is easier to setup. I was able to control the robot over a distance of 350 meters. This was very cool and the metal detector detected some screws and wires. This was a lot of fun.

12:22 pm September 9, 2016 By Julian Horsey Using the power of Arduino, Evan Kale has ingeniously transformed a weed wacker into an Arduino-powered metal detector.

The same holds true for a lot of microcontroller designs including [rgco’s] clever metal detector that uses very little other than an Arduino. The principle of operation is simple.

Pin D2 receives a 0-5VDC pulse, generated with a push-button SW1 generated. Fast response time on zero-crossing of 1µs + Arduino digital processing cycles. Topology schematic available in 20250507 - ...

Posted in Arduino Hacks, Raspberry Pi, Robots Hacks Tagged alexa, arduino, arduino nano, dc motor, facial recognition, flywheel, M&M launcher, raspberry pi, servo ...