This is an Arduino-based Proximity Sensor circuit wired using the popular HC-SR04 Ultrasonic ranging module,used here for non-contact object detection purpose. The HC-SR04 module includes ultrasonic ...

Instead, it relies on an ultrasonic distance sensor to detect a hand (or foot) waved in front of the door. An Arduino Leonardo runs the show, sounding a buzzer when the ultrasonic sensor is triggered.

Static ultrasonic distance measurement device for accurately parking a vehicle in garage. Handy for older vehicles that don't feature parking assist technology. The hardware requirements are kept at a ...

Power: Solder the red wire of the servo to the positive terminal of the bread board. Ground: Brown or black wire ground can be connected to the negative side of the breadboard. Signal: To the SCK we ...