1 Arduino Ultrasonic Sensor (HC-SR04) 1 buzzer; Ultrasonic sensor, mounting circuit; It is a very simple circuit. On the one hand, we will have all the alerts, acoustic and visual, and on the other ...

Setup power supply by connecting one end of a jumper wire to 5v pin of the Arduino Uno and the other to the "+" on the breadboard. Connect another wire to the GND pin on the uno and the "-" of the ...

The obstacle detection alarm with ultrasonic sensor using Arduino is designed. When any obstacle is placed on sensor path less than 8 cm, the buzzer will buzz with indication of red LED & also the ...

In this mode, you can interface the HC-SR04 ultrasonic ping sensor with a servo motor and the main board (Only some reward tiers include the extra servo motor PCB and servo motor kit).