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Author Topic: 4 Digits 7 Segments 12 Pins (3461BS) please help  (Read 2902 times)
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Hi,
I have this 4 Digits 7 Segments which has 12 pins and it has this code written on it: CAI3461BS. So i searched for its specification and i found this
http://www.datasheetarchive.com/indexer.php?file=DSASW00381837.pdf&dir=Datasheets-SW20&keywords=HS-3461A&database=user-highscore#
(sorry about the link, need to download it)

Or the picture and the pdf is on the attachment...

I tried this connections and code but it did not work at all.
http://www.hobbytronics.co.uk/arduino-4digit-7segment

Can any one please suggest a link on how to connect this 4 Digits 7 Segments with 12 Pins and a proper sketch to make it work..

please..

Thank...


* 3461BsSpecs.JPG (129.62 KB, 1192x1249 - viewed 388 times.)
* 3461b.pdf (103.09 KB - downloaded 109 times.)
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Quote
CAI3461BS

It is a 3.4" 7-segment display ("34"). "61" indicates the display type - there are many different types, like 41/42, 51/52, 55/56, 61/62, etc - google for more. "B" is common anode ("A" is common cathode). "S" I think is with the dots. "H" is with two dots, for hourly display.

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ok...

thanks for the reply..  smiley

I tried googleing how to make it work for example a simple timer counting seconds.. I tried one example but the numbers gets all messy on the display... i think i'm not be able to figure out which pin goes to which pin ...  smiley-cry

Is there any good sketch for this type of 4 digits 7 segment display you could suggest.. i'll be grateful..  smiley-grin

Thanks..
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Post the code you tried, lets see what's going on.
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Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

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Here's an example connection method.
Multiplex by driving 1 anode high and 1 cathode low at a time, cycye thru all 56 segments with each on turned on a short time, say 750microseconds each for a 24Hz refresh rate.
"Persistence of vision" will give the appearance of all digits being driven.




* 4x7segment.jpg (60.49 KB, 960x720 - viewed 292 times.)
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Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

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