HC-SR04 Ultrasonic Distance Sensor

The classic HC-SR04 ultrasonic distance sensor. Send a trigger pulse and time the echo to measure distance – the go-to sensor for obstacle-avoiding robots.

Specifications

• Supply: 5V
• Static current: <2mA
• Range: approx. 2–400cm
• Effective angle: ≤15°
• Pins: VCC, Trig, Echo, GND
• Options: sensor or mounting bracket