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HC-SR04 Ultrasonic Distance Sensor

HC-SR04 Ultrasonic Distance Sensor


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 ¦sec)/58
Distance (inch) = Measured Echo Time (in ¦sec)/148

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