Ultrasonic Sensor Distance Module HC SR04 For Arduino And Nano Robots XBee ZigBee Projects High Precision 2cm To 500cm Less Than 15 Degree Beam IO Trigger 10us 10 Pack For DIYers And Makers Prototyping

Ultrasonic Distance Sensor Module HC-SR04 Pack (10pcs)
✔️ 5V DC, 2cm to 500cm range, beam under 15 degrees, 0.3 cm resolution, trigger 10µs, 10-pack

The HC-SR04 ultrasonic distance sensor module is a compact 5V device used to measure distance by sending an ultrasonic pulse and timing its return. It’s a handy fit for Arduino, Nano, Raspberry Pi and other microcontrollers for obstacle sensing and range finding.

✅ 2 cm to 500 cm range with 0.3 cm resolution
✅ Beam angle under 15 degrees for focused sensing
✅ Trigger input requires at least 10 µs high-level signal
✅ Quiescent current under 2 mA; operates on 5V DC
✅ Pack size: 10 sensors per pack

💡 What is the working principle and typical use case for an ultrasonic distance sensor in DIY projects?

It uses a pulse-echo method to measure distance by timing an ultrasonic burst and reading the echo, handy for obstacle sensing and range measurement.

- Time-of-flight measurement with ultrasonic pulses - 5V logic compatibility with common microcontrollers - Range 2 cm to 500 cm for indoor projects