Circuit ultrasonic sonic ultra range ranging finder circuits schematic module pdf robot audio transducer electronics gr next low consumption current Hc sr04 distance datasheet transducer measurements indicates several features range schematic Srf04 technical documentation
MSU's RacerNet
Hc-sr04 ultrasonic sensor with arduino tutorial (5 examples)
Msu's racernet
Integrator for hc-sr04 ultrasonic range finder .
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