Ultrasonic range finder


This design has been around for a few years, but it looks like a good introduction to ultrasonic sensors. The design is surprisingly simple with a low parts count. Of course, if you prefer PIC controllers, you might like this version.

Comments

  1. Crash says:

    That’s pretty cool.

    http://crashgames.biz

  2. J SANTOS says:

    I like the ones which use an electrostatic transducer. They use it as both the transmitter and the receiver. Polaroid popularized the technology, which uses a rangefinder circuit made by Texas Instruments.

  3. gouri natrajan says:

    i wanted to know is this similar to SRF05 ultrasonic range finder???
    whats the cost of this one??

  4. sujan says:

    i’m tryin to make a similar one with a MaxSonar EZ1 range finder..should be easier,but this is my first ‘tronics proj…i’m using a buzzer to signify the approximate distance by changing the number of beeps/minute accordingly…i suppose this can be done with the analog output(the output voltage varies by ~9.8mV per inch) than using a processor to read the pulse or serial output n then converting the raw data…since all 3 outputs are available readily,can any of u help me design the circuit?i need to connect it to a buzzer that slows down or speeds up depending on the variation of voltage.
    for more info on maxsonar EZ1 refer http://www.maxbotix.com or

    http://www.maxbotix.com/MaxSonar-EZ1__FAQ.html

  5. daniel says:

    I need to implement an ultrasonic range detector that uses a microcontroller,can you please help me to get the schematic diagram as well as its program?
    Regards,
    Daniel.

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