HELP NEEDED CIRCUIT FOR ULTRASONIC MOTION DETECTOR
时间：04-10
整理：3721RD
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Hi ppl...
I want to make an ultrasonic motion detector ..I have acquired 40 khz transducers(RX and TX)..How can i use RX transducer to trigger an alarm when ever a motion is detected..what kind of citrcuit is required to accomplish this task..plizz help me ..I have got one circuit thru Google but i am not able to make out what the OPamps are doing in that Circuit ..
I want to make an ultrasonic motion detector ..I have acquired 40 khz transducers(RX and TX)..How can i use RX transducer to trigger an alarm when ever a motion is detected..what kind of citrcuit is required to accomplish this task..plizz help me ..I have got one circuit thru Google but i am not able to make out what the OPamps are doing in that Circuit ..
can you plizz help me its urgent
hey u can look up at https://www.edaboard.com/viewtopic.p...otion+detector