OctagonStar Ultrasonic Module HC-SR04 Distance Measuring Ranging Sensor for Arduino(5PCS)

Brand: OctagonStar

Features:

• Using IO trigger for at least 10us high level signal.
• The Module automatically sends eight 40 kHz and detect whether there is a pulse signal back.
• Static current: less than 2mA.Detection distance: 2cm-450cm.
• Working Voltage : 5V(DC),Electrical level output: 5V high.

Details: There are 4 pins out of the module: VCC , Trig, Echo, GND . So it’s a very easy interface for controller to use it ranging. 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: Distance = ((Duration of high level)*(Sonic :340m/s))/2.
Brand Listing, If you buy is not OctagonStar brand product, You Can Apply for a Refund and Compensation.

Package Dimensions: 23x171x45