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7 Segment LED Hardware Connections

 
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Regular Guy



Joined: 04 Jun 2017
Posts: 102

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7 Segment LED Hardware Connections
PostPosted: Mon Jun 28, 2021 12:15 pm     Reply with quote

Here it is.

https://www.futurlec.com/Mini_Seven-Segment.shtml

On the back is a 10 pin female connector.

How do we check with ohmmeter for common ground please?

Thanks!
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temtronic



Joined: 01 Jul 2010
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PostPosted: Mon Jun 28, 2021 8:28 pm     Reply with quote

not really a CCS compiler question, basic electronics101 but....

honestly contact the seller or the manufacturer of the product THEY should have the information !
sometimes they print the pinout on the PCB, though I only see the front of the module
depending on the connector ,with a 3 volt battery and 2 leads you can 'ring out' (locate...) which pins are the segments .
it's a Toshiba 5161A device, download the datasheet, use DVM-ohms(bzr) to see where the display pins go....

now a clever guy WOULD use a PIC connected to all 10 pins, cut code to test all the possibilites, save the results ,then 'decode' which pins are the segments and the cathode.....

jay
diode_blade



Joined: 18 Aug 2014
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PostPosted: Tue Jun 29, 2021 5:20 am     Reply with quote

There is usually the manufacturer's part number on the side or top of the display.
Google this and you should be able to download the datasheet, for that 7 seg display, it will have the pin out.
Dave

Edit:
I see Temtronic has already said that. Note to self Read full post first...
Very Happy
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