Sensor Online: Buy Ultrasonic

It theoretically measures up to 400cm , but in my experience, it's most reliable for projects like automatic water tank monitors or obstacle-avoiding cars between 2cm and 80cm .

If you have an Arduino or Raspberry Pi, it's a "plug and play" dream using the four standard pins: VCC, Trig, Echo, and GND . The Catch: HC-SR04 Ultrasonic Sensor Module - Quartz Components buy ultrasonic sensor online

Most "packs" come in sets of 5 or 10. This is lucky because, in the world of breadboarding, things occasionally "stop working" after one too many wiring experiments. Performance Highlights: It theoretically measures up to 400cm , but