Introduction - If you have any usage issues, please Google them yourself
Ultrasonic Distance Measurement circuit. As for why the receiver do not have to do the transistor amplifier circuit, because magnification well, CX20106 integrated amplifier, but also with automatic level gain control, magnification to 76dB, the center frequency is 38k to 40k, is exactly the resonant frequency of ultrasonic sensors, feel is appropriate.
Packet : 49636980ceju.rar filelist
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