Features
- Working Voltage : 5V(DC)
- Sensor angle: Not more than 15 degrees.
- Detection distance: 2cm-400cm.
- Input trigger signal: 10us TTL impulse
- 10 X 365buying HC-SR04 Arduino Ultrasonic Distance Measuring Sensor Module
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| Product Description |
Product Description
HC-SR04 Ultrasonic ranging module provides 2cm-400cm non-contact measurement function, the ranging accuracy can reach to 3mm. The modules includes ultrasonic transmitters, receiver and control circuit. The basic principle of work:Using IO trigger for at least 10us high level signalThe 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. Test distance = (high level timevelocity of sound (340M/S) /2
Amazon.com: Ultrasonic Module HC-SR04 Distance Sensor For Arduino ... NOTE:The link is the documents about Ultrasonic Module HC-SR04 Distance Sensor. https://s3-ap-northeast-1.amazonaws.com/sain-amzn/20/20-019-100/HC-SR04.rar There are ... Arduino THE MAKE CHRONICLES The MAKING of stuff, some Arduino projects and lots of general fun with code and components June 2012 THE MAKE CHRONICLES The MAKING of stuff, some Arduino projects and lots of general fun with code and components
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