A real-time object detection and distance measurement system using the HC-SR04 ultrasonic sensor, developed in Embedded C for the LPC1768 microcontroller using Keil μVision.

An alternative signal source is, for example, the inexpensive Grove ultrasonic distance sensor from Seeed Studio, which is available from Elektor. In the case of our son’s car, it was very easy to ...

Create an SR04 object. Then use SR04.measure_centimeter() to get data.

Precision, high-performance A/D converters demand additional technical attention when it comes to interfacing and signal conditioning for various sensor types — unlike more common converters. These ...