On Jul 24, 11:49 pm, "Paul E. Bennett" <p...@amleth.demon.co.uk>
wrote:
> Dibyenduwrote:
>
> [%X]
>
> >> Is the transmitter and receiver a pair of devices or just a single TX/RX
> >> unit?
>
> >> If they are a pair you may need to check that you are using the
> >> transmitter for transmitting and the receiver for receiving.
>
> >> You should also try and do one bit at a time. This link:-
>
> >>http://www.eetasia.com/ARTICLES/2002MAR/2002MAR08_RFD_DA_AN.PDF
>
> [%X]
>
> > Hello
> > I just had a rough look on the document. It is understandable, and
> > going to implement it soon (at the time of implementation i must read
> > this document again) :-)
>
> You could still use your original processor with the interaces described in
> that document. Just make sure that you understand what the interfaces do
> for you first before worrying about the processor and its software.
>
> --
> ********************************************************************
> Paul E. Bennett ....................<email://...@amleth.demon.co.uk>
> Forth based HIDECS Consultancy .....<http://www.amleth.demon.co.uk/>
> Mob: +44 (0)7811-639972
> Tel: +44 (0)1235-811095
> Going Forth Safely ..... EBA.www.electric-boat-association.org.uk..
> ********************************************************************
Hi,
I have built the ultrasonic sensor ranger with the help of
"2002MAR08_RFD_DA_AN.PDF" but it is not working.
Explanation of the sensor:
Base on the availability of the component I choose,
( I )
1. ICM7555 instead of TLC555
2. CA3130 instead of CA5160 and
3. LM567.
4. PIEZO ULTRASONIC SENSOR: Module T40-1601
R40-1601,
Center Frequency:
40.0khz, with 1.0 khz variation. Etc.
( I I )
1. Since the reset pin is remain high after given power on transmitter
module, I am adding 10k resistance between ground and reset pin.
2. At 5 volt supply [after step ( I I ) . 1 ] to the reset pin, it is
generating ultrasonic sound.
(Test cond: make CT capacitor value dauble of the transmitter,
now this will generate nearly 20khz frequency. This range can be
tested on multimeter audible frequency tester.)
( I I I )
Nothing happed on receiving end.
Please take look in this issue, and tell me the possible way to solve
it.
Thanks
Dibyendu
> Viktor wrote:
>> If I remember correctly, there was an ultrasonic range-finder project
>> in a rather old edition of Elektor.
>> (Early 1980s?)
>> Try searching for this. You might find a scanned version of this
>> article.
>
> Has anyone mentioned the Circuit Cellar Jan 2003 article?
Reply by Paul Burke●July 27, 20072007-07-27
Viktor wrote:
> If I remember correctly, there was an ultrasonic range-finder project
> in a rather old edition of Elektor.
> (Early 1980s?)
> Try searching for this. You might find a scanned version of this
> article.
Has anyone mentioned the Circuit Cellar Jan 2003 article?
Reply by Viktor●July 26, 20072007-07-26
If I remember correctly, there was an ultrasonic range-finder project
in a rather old edition of Elektor.
(Early 1980s?)
Try searching for this. You might find a scanned version of this
article.
Viktor
Reply by Paul E. Bennett●July 24, 20072007-07-24
Dibyendu wrote:
[%X]
>> Is the transmitter and receiver a pair of devices or just a single TX/RX
>> unit?
>>
>> If they are a pair you may need to check that you are using the
>> transmitter for transmitting and the receiver for receiving.
>>
>> You should also try and do one bit at a time. This link:-
>>
>> http://www.eetasia.com/ARTICLES/2002MAR/2002MAR08_RFD_DA_AN.PDF
[%X]
> Hello
> I just had a rough look on the document. It is understandable, and
> going to implement it soon (at the time of implementation i must read
> this document again) :-)
You could still use your original processor with the interaces described in
that document. Just make sure that you understand what the interfaces do
for you first before worrying about the processor and its software.
--
********************************************************************
Paul E. Bennett ....................<email://peb@amleth.demon.co.uk>
Forth based HIDECS Consultancy .....<http://www.amleth.demon.co.uk/>
Mob: +44 (0)7811-639972
Tel: +44 (0)1235-811095
Going Forth Safely ..... EBA. www.electric-boat-association.org.uk..
********************************************************************
Reply by runner●July 24, 20072007-07-24
"Dibyendu" <dib.mon@gmail.com> wrote in message
news:1185257221.210974.74760@j4g2000prf.googlegroups.com...
> On Jul 23, 10:52 pm, "runner" <emb@dded> wrote:
> > "Dibyendu" <dib....@gmail.com> wrote in message
> >
> > news:1185201243.584134.141310@e16g2000pri.googlegroups.com...
> >
> >
> >
> > > 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).
> >
> > Such modules exist. Even if you want to build build one
> > you can develop your software with the already tested
> > ones. Later on, you can use the tested software to
> > build a module on your own.
> >
> > http://www.robot-electronics.co.uk/shop/Ultrasonic_Rangers1999.htm
>
> Hi Runner,
> I had find the link. and seen that there are some great product on
> Ultrasonic. But is not it possible to build one by my own? please
> help.
On Jul 23, 8:45 pm, "Paul E. Bennett" <p...@amleth.demon.co.uk> wrote:
> Dibyendu 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.
>
> Is the transmitter and receiver a pair of devices or just a single TX/RX
> unit?
>
> If they are a pair you may need to check that you are using the transmitter
> for transmitting and the receiver for receiving.
>
> You should also try and do one bit at a time. This link:-
>
> http://www.eetasia.com/ARTICLES/2002MAR/2002MAR08_RFD_DA_AN.PDF
>
> may help you. If you build just the interface portions you should be able to
> see if they are working by scoping around the pins.
>
> Once you have working TX and RX circuits you can then add the micro and
> software and work on what ails those.
>
> --
> ********************************************************************
> Paul E. Bennett ....................<email://...@amleth.demon.co.uk>
> Forth based HIDECS Consultancy .....<http://www.amleth.demon.co.uk/>
> Mob: +44 (0)7811-639972
> Tel: +44 (0)1235-811095
> Going Forth Safely ..... EBA.www.electric-boat-association.org.uk..
> ********************************************************************
Hello
I just had a rough look on the document. It is understandable, and
going to implement it soon (at the time of implementation i must read
this document again) :-)
Reply by Dibyendu●July 24, 20072007-07-24
On Jul 23, 10:52 pm, "runner" <emb@dded> wrote:
> "Dibyendu" <dib....@gmail.com> wrote in message
>
> news:1185201243.584134.141310@e16g2000pri.googlegroups.com...
>
>
>
> > 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).
>
> Such modules exist. Even if you want to build build one
> you can develop your software with the already tested
> ones. Later on, you can use the tested software to
> build a module on your own.
>
> http://www.robot-electronics.co.uk/shop/Ultrasonic_Rangers1999.htm
Hi Runner,
I had find the link. and seen that there are some great product on
Ultrasonic. But is not it possible to build one by my own? please
help.
Reply by Dibyendu●July 24, 20072007-07-24
On Jul 23, 9:20 pm, Viktor <vkes...@gmail.com> wrote:
> On Jul 23, 4:34 pm, Dibyendu <dib....@gmail.com> 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.
Hello Victor,
I also find that there is nothing about Ultrasonic in the books of
mazidi. But I know very little about External hardware interfacing. I
think Understanding of this chapter vary important to understand and
build Ultrasonic Sensor interface with microcontroler. plz send me
your comment.
Reply by Dibyendu●July 24, 20072007-07-24
On Jul 23, 8:45 pm, "Paul E. Bennett" <p...@amleth.demon.co.uk> wrote:
> Dibyendu 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.
>
> Is the transmitter and receiver a pair of devices or just a single TX/RX
> unit?
>
> If they are a pair you may need to check that you are using the transmitter
> for transmitting and the receiver for receiving.
>
> You should also try and do one bit at a time. This link:-
>
> http://www.eetasia.com/ARTICLES/2002MAR/2002MAR08_RFD_DA_AN.PDF
>
> may help you. If you build just the interface portions you should be able to
> see if they are working by scoping around the pins.
>
> Once you have working TX and RX circuits you can then add the micro and
> software and work on what ails those.
>
> --
> ********************************************************************
> Paul E. Bennett ....................<email://...@amleth.demon.co.uk>
> Forth based HIDECS Consultancy .....<http://www.amleth.demon.co.uk/>
> Mob: +44 (0)7811-639972
> Tel: +44 (0)1235-811095
> Going Forth Safely ..... EBA.www.electric-boat-association.org.uk..
> ********************************************************************
Hi Bennett
I am starting to the PDF file from your given link.
keep in tuch