Ultrasonic distance sensor HC-SR04 2-200cm - justPi
- Product Code:
- 74848706
Properties
- Promotion
- BF40
- Voltage To
- 5.0 V
- Датчик - расстояние от
- 2.0 cm
- Датчик - расстояние до
- 200 см
Features
- Connection
- Digital I / O
General characteristics
- Voltage From
- 5.0 V
Other features
- Brand
- OpenPlatform
Description
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.
The product is compatible with Arduino and Raspberry Pi
- User guide for Arduino
- Library for Arduino
- Example of connecting with Raspberry Pi
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:
- 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 sensorUltrasonic distance sensor HC-SR04 2-200cm - justPi.
Useful links
- Example of connecting to Arduino
- Example of connection with Raspberry Pi
- NewPing library for Arduino with a sample program
- Sample project for Arduino
- Documentation of sensor HC-SR04
