This is an Arduino-based Proximity Sensor circuit wired using the popular HC-SR04 Ultrasonic ranging module,used here for non-contact object detection purpose. The HC-SR04 module includes ultrasonic ...

Note: Verify voltage compatibility for the ECHO signal with your board. Use a level shifter or voltage divider if required. The sketch triggers the sensor, reads the echo pulse duration, converts it ...

An ultrasonic range finder is a useful tool in a variety of real-life and robotic applications, such as in obstacle-avoidance and distance-measurement systems. The ultrasonic range finder measures the ...