HC-SR04 sensor ultrasonic distance measurements for Arduino, ESP8266, ESP Easy, Raspberry Pi projects

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HC-SR04 sensor ultrasonic distance measurements for Arduino, ESP8266, ESP Easy, Raspberry Pi projects

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The HC-SR04 sensor allows ultrasonic distance measurements between 2 and 450cm. It is a sensor widely used in robotic and RC projects based on Arduino, ESP8266, Raspberry Pi. It is also supported by ESP Easy firmware for ESP8266 WiFi modules.

The HC-SR04 has 4 pins. Two pins for the power supply (+ 5V, GND), a Trig Input pin (trigger input) and an Output pin (or Echo for some manufacturers) of the PWM digital signal. The output will deliver a pulse train proportional to the measured distance.

Technical characteristics of HC-SR04

  • Measuring range: 2 to 450cm
  • Measurement accuracy: 0.3cm
  • Supply voltage: 5V
  • PWM digital output
  • Weight: 9g

HC-SR04 sensor ultrasonic distance measurements offers

1pcs Ultrasonic Module HC-SR04 Distance Measuring Transducer Sensor for Arduino
$1.03
Geekcreit® Ultrasonic Module HC-SR04 Distance Measuring Ranging Transducer Sensor DC 5V 2-450cm
CHF 3.23
3Pcs Geekcreit® Ultrasonic Module HC-SR04 Distance Measuring Ranging Transducer Sensor DC 5V...
CHF 4.47
10PCS Ultrasonic HC-SR04 Distance Transducer Sensor For Arduino Robot
$8.49
Gowoops 5PCS HC-SR04 Ultrasonic Module Distance Measuring Transducer Sensor for Arduino
$9.99
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-13% Elegoo HC-SR04 Ultrasonic Module Distance Sensor for Arduino UNO MEGA2560 Nano Robot...
$9.99 $11.49
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ESP Easy compatible sensors and actuators offers

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  • This product is available at Ebay, Banggood, Amazon.com.
  • At ebay.com you can purchase 1pcs Ultrasonic Module HC-SR04 Distance Measuring Transducer Sensor for Arduino for only $1.03, which is 90% less than the cost in Amazon.com ($9.99).
  • The lowest price of Gowoops 5PCS HC-SR04 Ultrasonic Module Distance Measuring Transducer Sensor for Arduino was obtained on 1 March 2021 2 h 02 min.

 

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Last Amazon price update was: 5 March 2021 2 h 03 min
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.

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