HC-SR04 Ultrasonic Distance Sensor

The standard hobbyist ultrasonic distance sensor — 2 to 400 cm range, 5 V operation, simple trigger/echo timing interface. Works on every micro-controller with two GPIO pins.

Cheap, ubiquitous, and the right call for a first robotics project. We stock the standard 4-pin form factor. Request a quote — volume discounts available for kits.