In the Maker Shed: PING))) Ultrasonic range finder

In the Maker Shed: PING))) Ultrasonic range finder

The PING))) ultrasonic sensor in the Maker Shed provides a low-cost and easy way of measuring distance. This sensor provides all the data form just a single pin connected to your favorite micro-controller. I have used these in several projects, and they work great. Check out the link for a lot more information on this cool little sensor.


  • Range – 2cm to 3m (~.75″ to 10′)
  • Supply Voltage: 5V +/-10% (Absolute: Minimum 4.5V, Maximum 6V)
  • Supply Current: 30 mA typ; 35 mA max
  • 3-pin interface (power, ground, signal)
  • 20 mA power consumption
  • Narrow acceptance angle
  • Simple pulse in / pulse out communication
  • Indicator LED shows measurement in progress
  • Input Trigger – positive TTL pulse, 2 µs min, 5 µs typ.
  • Echo Pulse – positive TTL pulse, 115 µs to 18.5 ms
  • Echo Hold-off – 750 µs from fall of Trigger pulse
  • Burst Frequency – 40 kHz for 200 µs
  • Size – 22 mm H x 46 mm W x 16 mm D (0.85 in x 1.8 in x 0.6 in)

More about the PING))) Ultrasonic range finder



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