Interfacing HC-SR04 Ultrasonic Sensor with Raspberry Pi

Contents1 Working of HC-SR042 Voltage Divider3 Connection Diagram4 Distance Calculation4.1 Calibration5 Python Programming6 Output7 Reading accuracy Ultrasonic distance sensors are designed to measure distance between the source and target using ultrasonic waves. We use ultrasonic waves because they are relatively accurate across short distances and don’t cause disturbances as they are inaudible to human ear. … Continue reading Interfacing HC-SR04 Ultrasonic Sensor with Raspberry Pi