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 ...

Learn how to build a WiFi-enabled Arduino Weather Monitoring System that reads temperature, humidity, pressure, air quality, and more using sensors like DHT11, BMP180, and MQ135. This hands-on project ...

8. Wire up the Ultrasonic Sensor: Connect the HC-SR04 ultrasonic sensor to your breadboard, then connect the appropriate pins (VCC, GND, Trig and Echo) to the Arduino Uno using jumper wires. 9. Upload ...