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HC-SR04 Ultrasonic Distance Sensor

HC-SR04 Ultrasonic Distance Sensor

£2.12 £2.50

A perfect addition to a robot for range finding to avoid walls and other flat objects.
  • Supply voltage: 5 VDC
  • Current consumption: 15mA
  • Working Frequency: 40Hz 
  • Max Range: 4m 
  • Min Range: 0.02m (2cm)
  • MeasuringAngle: 15 degree 
  • Trigger Input Signal: 10uS TTL pulse 
  • Echo Output Signal: Input TTL lever signal and the range in proportion


Distance (cm) = Measured Echo Time (in µsec)/58
Distance (inch) = Measured Echo Time (in µsec)/148

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