Re: Ultrasonic Sensor

On Jul 23, 4:34 pm, Dibyendu <dib....@xxxxxxxxx> wrote:
Hi,

I am trying to build an ultrasonic sensor module to detect and measure
the distance of an object, and got some problem :-)

Problem:
1. Not sure whether the transmitter send sound or not.
2. Not sure, Receiver work properly or not.
3. Circuit and code was not tested.

The configuration of my board is:

a) AT89C52. Microcontroller.
b) XTL freq. 11.0592 mhz.
b) 40 KHz ultrasonic transmitter and receiver.
c) +5V to 0 (ground) power supply.
(I am trying to follow the book of mazidi)

Please suggest me on that on that issue.
(I am thankful on this group because I am getting so much help from
this group to as the problem of serial communication, As a newcomer in
embedded it was a really hard problem).

Not being acquainted with the teachings of mazidi (although, if he's
anything like Ly Tin Wheedle, I'm sure you're on the right track
following his book)and based on the information you've given here, I
can positively state the following:

a) Choice of microcontroller is not the cause of your problems. I have
used this controller myself and can vouch for it.
b) the frequency of 11.0592MHz is also not the cause of your problems.
It's a tried and tested frequency and a lot of people are using it.
c) 5V is a great voltage! Don't let anyone try to convince you
otherwise.

3. Circuit and code was not tested.

You might be spot on here, though. Why don't you try testing the
circuit?
Hopefully there's no "Thou shalt not use a scope" in the book of
mazidi.




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