Ultrasonic Sensor

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..
********************************************************************

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

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?

I belive this is the one:

http://www.circuitcellar.com/library/print/0103/piana150/index.htm

Thanks,

Adam.

"Paul Burke" <paul@scazon.com> wrote in message 
news:5gtjt4F3htgepU1@mid.individual.net...
> 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? 

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