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Recent content by abated_mars

  1. A

    Build a motion detector

    microwave motion sensor schematic hello SINISA . .I am looking for detail explanation about the envelop detector part of the circuit?How is the LM324 -1 is detecting the motion and how is LM324 -3 able to set the threshhold
  2. A

    Urgent Exam help!!What will be o/p of the circuit????

    yaa It is a part of Ultrasonic receiver circiut ..I am also searching for its answer..If u get to know plizz do let me knw
  3. A

    Build a motion detector

    motion sensor schematic hey i m working on a similar ciruit for ultrasonic motion detector the circuit in pdf..I am having problem in understanding the first stage of LM324 what eaxtly is happening(u can download thhe ckt from the post above).help me its urgent Added after 10 minutes...
  4. A

    HELP NEEDED CIRCUIT FOR ULTRASONIC MOTION DETECTOR

    can you plizz help me its urgent
  5. A

    HELP NEEDED CIRCUIT FOR ULTRASONIC MOTION DETECTOR

    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...
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