Arduino parking sensor: beeps faster as you get closer

T1Covered by 1 source · first reported by Raspberry Pi / Arduino / Adafruit at 30 Sept, 19:08 UTC

Compoden published a beginner Arduino project on Hackster that turns an ultrasonic sensor into a tabletop parking sensor. An HC-SR04 measures distance and a passive buzzer beeps faster as an object moves closer. Past the chosen detection range, the buzzer stays silent. The parts list is short: a 5V…

Sources

• T1Arduino parking sensor: beeps faster as you get closerRaspberry Pi / Arduino / Adafruit30 Sept, 19:08