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Ultrasonic distance sensor HC-SR04 2-200cm - justPi
Ultrasonic sensor operating in the range from 2 cm to 200 cm. It is powered with voltage of 5 V. The output is a signal whose duration is proportional to the measured distance.
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Product description: Ultrasonic distance sensor HC-SR04 2-200cm - justPi
Ultrasonic sensor working in the range of 2-200 cm. Powered with voltage of 5 V. The output is a signal whose duration is proportional to the measured distance.
Video
Directions of ultrasonic sensor HC-SR04
To begin the measurement, you must specify the output pulse voltage on the pin TRIG (high state 5V) for 10 s. The module measures distances using sound wave with a frequency of 40 kHz. To the microcontroller, a signal is sent, in which distance depends on the duration of high state and it can be calculated by the formula:
test distance = (high level time × velocity of sound (340m/s) / 2
where:
where:
- test distance: - the measured distance
- high level time: - duration of high state
- velocity of sound: - velocity of sound waves' emission in air - 340 m/sec
In short, to get the result in centimeters, use the formula:
distance[cm]= ( high level time[us]* 34 ) / 1000 / 2
HC-SR04 sensor specification
- Supply voltage: 5 V
- Average current consumption: 15 mA
- Measuring range: from 2 cm to 200 cm
- Output: frequency signal
- Working frequency: 40 kHz
- Dimensions: 45 x 20 x 15 mm
Details inthe documentation.
Accessories for HC-SR04 - justPi sensor
Useful links
| Name | Value |
|---|---|
| Voltage to | 5.0 V |
| Voltage from | 5.0 V |
| Interface | Digital I / O |
| Sensor - distance to | 200 cm |
| Sensor - distance from | 2.0 cm |
| Width | 5.5 cm |
| Height | 5 cm |
| Depth | 1.8 cm |
| Weight | 0.009 kg |
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30 days to return, without giving a reason
If the product does not meet your expectations, you have 30 days from receiving the parcel to withdraw from the contract. The product only has to be complete. The right of return belongs to consumers (a purchase unrelated to business activity).
Complaints
If the product turns out to be faulty, you can make a claim under the guarantee or the statutory warranty. We handle claims without delay, at the latest within 14 working days of receiving the report together with the goods.
Question: The sensor reads 2 - 400cm, not up to 200cm. That's what the documentation says.
Instructions and documents
GPSR data
Product information
This product is a component intended for further assembly or prototyping. It is not a finished product within the meaning of the product safety regulations.
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