#define TRIGGER_PIN 2 // Arduino pin tied to trigger pin on the ultrasonic sensor. #define ECHO_PIN 3 // Arduino pin tied to echo pin on the ultrasonic sensor. #define MAX_DISTANCE 400 // Maximum ...

const int ldrPin = A0; // LDR connected to analog pin A0 const int trigPin = D1; // Ultrasonic Sensor Trig pin const int echoPin = D2; // Ultrasonic Sensor Echo pin ...

A standard electret microphone can detect sub-audio "sounds" when some simple equalization circuitry is added.

T here's no limit to what one can do with a Raspberry Pi. From using it as a laptop to emulating PlayStation 3 games, there ...

Elliot Williams was joined by fellow Europe-based Hackaday staffer Jenny List, to record the Hackaday Podcast as the dusk settled on a damp spring evening. On the agenda first was ...

Creating a GPS tracker is an exciting project, especially for beginners interested in electronics and software development. It’s a project that… ...