This is an Arduino-based Proximity Sensor circuit wired using the popular HC-SR04 Ultrasonic ranging module ... and best understood by referring the wiring diagram. If everything goes right,you should ...

So you finally decided to hop on the Arduino bandwagon and start making electronic projects ... (e.g., push button, ultrasonic sensor, keypad), output (e.g., LED, DC motor, LCD), power (e.g ...

Assume that you are moving towards a complex microcontroller project bundled with blinkers, beepers, and a display panel ... have the slave address 0x27. Reference circuit diagram of an ...