HC-SR04 Ultrasonic distance detection module

Item number 10037 Share
HC-SR04 Ultrasonic distance detection module
€ 2,65€ 2,20 Excl. VAT (NL)
Expected delivery date: Tuesday 7 February. ... pieces in stock Hot item
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Description Links

The HC-SR04 module measures distance to objects by means of ultrasonic reflection. This is done by firing pulses of 40 kHz to the environment, after which the time required to receive the reflected signals is measured. By dividing this time by a constant, the distance can be determined fairly precisely (up to 0.3 cm precision!). Works with all hard surfaces (the sound must be able to be reflected).

Properties:
  • Voltage: 5V
  • Current: <2 mA.
  • Output: Digital, high 5V, low 0V.
  • Sensor angle: around 15 degrees.
  • Detection distance: 2 cm - 450 cm (measurable with; pulse width (uS) / 58 = distance (cm).
  • Precision: up to 0.3 cm
  • Input trigger signal: 10us high
  • Echo signal: High for x uS

Properties

Connection data
Voltage 5 V
Datasheet
Current 2 mA
Lengte21 mm
Breedte45 mm
Hoogte15 mm
Gewicht9,1 g

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Customer questions

Customer Reviews

The Netherlands
Cheap Easy in use Large detection cone Above 2m inaccurate
Classic, and fun to explain pin interrupts with. Sound cone is quite wide, picks up just a little too much in my opinion and quite inaccurate from 2m. Technically somewhat outdated now that there are time-of-flight laser sensors like this one: https://opencircuit.nl/product/vl53l1x-time-flight-distance-sensor-carrier . But it is also 5x as expensive.
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The Netherlands
Old acquaintance.
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The Netherlands
Works very well, fairly easy to program
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The Netherlands
Works fine
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The Netherlands
I use this sensor in my rain reservoir to measure the level of rain water and the humidity is apparently a problem. The measurement fails after a few months. The interior works fine.
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