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HC-SR04 Ultrasonic Sensor
Projectcircuito teamSun Aug 26 2018

HC-SR04 is a low cost ultrasonic sensor for common range measuring needs. The sensor provides 2cm to 400cm of non-contact measurement functionality with accuracy up to 3mm.

Pros
  • Easy setup
  • Low-cost
  • Good accuracy (up to 3mm)
  • Wide range – 2-400 cm.
    • Cons
  • Wide beam
  • Mutual Interference
  • Low read rate due to the velocity of sound
    • HC-SR04 Circuits

    How to wire HC-SR04 to Arduino Uno How to Wire HC-SR04 to NodeMCU How to wire HC-SR04 to Arduino Gemma

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    HC-SR04 Ultrasonic Sensor - component image 0
    HC-SR04 Ultrasonic Sensor - component image 1
    HC-SR04 Ultrasonic Sensor - component image 2
    From DigiKey Electronics