How to use multiple HCSR04 Ultrasonic Sensor same time with Arduino?
HCSR04 is a distance sensor which uses ultrasonic sound waves to to detect distance. As you know I used a HCSR04 ultrasonic sensor with my...
How to measure height with HC-SR04 Ultrasonic Sensor and Arduino
You know I’m a teacher and I measure my students height every year when school start. Sometimes with my old methods it takes long time...