
Arduino
HC-SR04 Ultrasonic Distance Sensor Audio Alert with Arduino
With an HC-SR04 and a Piezo Buzzer you can create an audio distance sensor like the one many cars have for backing up. Functional Parts in the Project: Arduino Uno – https://store.arduino.cc/usa/arduino-uno-rev3 HC-SR204 Ultrasonic Sensor – https://amzn.to/31AGgYC […]