int pirPin = 2; // PIR sensor output connected to pin 2 int ledPin = 13; // LED connected to pin 13 (or relay module) ...

This project uses an HC-SR04 ultrasonic sensor and Arduino UNO to measure the distance of objects in both centimeters and inches. The measured data is displayed on an I2C LCD. The project was ...

Build a Speed Sensor using Arduino with IR speed sensors to accurately measure the speed of moving objects. This tutorial covers circuit design, sensor calibration, speed calculations, and optimized ...

Also note that the Theremin demonstrated here is a stripped-down (and tricky) version of the far-famed proximity-controlled musical instrument – the key difference is that it employs a cheap light ...

Learn how to use the Arduino nRF24L01 module for wireless communication. This beginner-friendly guide covers wiring, code, and troubleshooting to kickstart your Arduino RF projects.

Ultrasonics sensor, IR sensor, Photoresistor sensor, Arduino, Arduino cable Good internet connectivity Arduino IDE Essential tools are a multimeter, soldering iron, solder, and wire cutter. Arduino ...

This video demonstrates how to set up a remote temperature monitoring system using an Arduino Uno R4 WiFi, an LM35 temperature sensor, and the MQTT protocol. The system captures ambient temperature ...

Hi, I'm Bill. I'm a software developer with a passion for making and electronics. I do a lot of things and here is where I document my learning in order to be able to inspire other people to make ...