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. An Arduino ...

[Mircemk] has an example that bends both worlds, with a single transistor oscillator and an Arduino. This type of metal detector has a large search coil which forms part of the tuned circuit in an ...

Robot/metal detector circuit diagram. Source: Interesting Engineering Build the PCB as shown, with the components required. Then insert the Arduino RF Nano, and the DC Motor Driver onto the board.

Evan Kale has ingeniously transformed a weed wacker into an Arduino-powered metal detector. This innovative project showcases the versatility and potential of Arduino in creating practical and fun ...

A new Instructables page has been created to make an eco-friendly DIY metal detector using an Arduino Mega just been combined with a 3.2 inch TFT LCD touchscreen to provide a fantastic readout ...

Arduino Earthquake Detector Alarm with Seismic Graph Overview This project utilizes the ADXL335 3-axis accelerometer as a sensor to detect tilting, trembling, or shaking movements indicative of an ...

An Arduino Uno board is used to process the data received from the accelerometer and switch on the corresponding LED to indicate the direction of tilt. Fig. 1 shows the author’s prototype and Fig. 2 ...

One of the essential parts of any home security system is a door detector that lets you know ... The system here uses a cheap Arduino board, a few sensors, and a magnetic contact switch.