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Devantech SRF04 Ultrasonic Range Finder (#28015)
The Devantech SRF04 ultrasonic range finder provides precise, non-contact distance measurements from about 3 cm (1.2 inches) to 3 meters (3.3 yards). It is very easy to connect to BASIC Stamps or the Javelin, requiring only two I/O pins.1 The SRF04 library makes this device very simple to use and is an ideal ponent for robotics applications. The SRF04 works by transmitting an ultrasonic (well above human hearing range)...