UK
Haiworld HC-SR04 Ultrasonic Module Distance Measuring Transducer Sensor For Arduino UNO R3 Mega 2560 Nano Robot(Pack of 5)
by HaiworldNew from:
£12.86
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Last refresh Jul/08/2017 11:47 AM
Last refresh Jul/08/2017 11:47 AM
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Brand
Haiworld
Features:
* There are 4 pins out of the module: VCC, Trig (control side), Echo (receiver), out (empty) GND. It's a very easy interface for controller to use it ranging.
* The module automatically sends eight 40 kHz and detect whether there is a pulse signal back. If the signal back, through high level, time of high output IO duration is the time from sending ultrasonic to returning.
* The All process is: pull the Trig pin to high level for more than 10us impulse, the module start ranging; finish ranging, If you find an object in front, Echo pin will be high level, and based on the different distance, it will take the different duration of high level. So we can calculated the distance easily.
* The distance = ((durable of high level) * (Sonic: 340 m/s))/2
MODULE DETAILS:
Voltage: DC5 V;
Static current: less than 2mA;
Output signal: Electric frequency signal, high level 5 V
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