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vasekg
Posts: 1
Hallo, sorry for my bad english. Is it possible to buy 3 or 5 digits LED 7 segment display with max 7219 driver? I cant see any at Aliexpress and other internet sellers. I see only 4 or 8 digits. Or need i just buy LED segments, driver and make it? Thank you!
2021-05-22 21:39
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pizman82
Moderator
From: ETSI, Germany
Posts: 6010
Supporter
Hi

3,5 and 6 are pretty rare. I not know sources for this !
As you still expect.... Normaly we build these ourself.

There are lots of ways.... verry professional with PCB´s or pretty cheap with wirework.

Whatever.... Most people work with the MAX Tubes ( with removeable diggits)
Like This...


There you can remove the 2x4 Blocks and you got then 12 Empty Pins on each side ( 8 Seg+4Cathode)
You can easy wire your custom 3 Diggit Displays there.... Or you can wire 5,6,7,8 Displays by use One side Segments and Cathodes from both Side !

In easy words.... Buy the Display of your choice ( Common Cathode!!!!!) and wire it to the empty tubes....
OR
Build/buy PCB´s to setup Displays of your choice ( e.g. also Single Diggits in a row) and include Max IC´s or wire them with connectors to empty Max Tubes !
[Last edited by pizman82, 2021-05-23 01:25]
Good Luck !
2021-05-23 01:19
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Stoneralf
Posts: 3
I found a 5 Digit 7Segment Display on E-Bay
https://www.ebay.de/itm/332760113227?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649
2021-05-23 13:43
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Ilirio
Posts: 38
Browsing the forum I found an old post asking about how to transform an 8 digit red MAX Tube (as sold) into a 5-digit white one. I can't remember who exactly replied that there was a tutorial in German. I don't speak German but Google is my friend and I hope I could understand the automatic translation, can anybody send me that tutorial or at least tell me who was the originator to directly contact him?

Thank you in advance
2021-10-28 06:21
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StephanHo
Moderator
From: EDDG, Germany
Posts: 1867
Supporter
Hi Ilirio,

please write an email to "stephanho (at) t-online.de"

I made this tutorial and can send it to you - and it's also available in english ;)
Grüße,
Stephan (Time: UTC+2)
2021-10-28 09:09
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kjoussen
From: Hamburg, Germany
Posts: 178
I found a seller on Ali who is selling 1 to 5 digit wide modules:
https://de.aliexpress.com/item/32932664728.html
2021-10-28 09:28
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kjoussen
From: Hamburg, Germany
Posts: 178
And here is the "missing" 6 digit display, e.g. for the radios
https://de.aliexpress.com/item/1326420858.html
2021-10-28 22:14
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mmanieri
Posts: 1
Hello,

while looking for inputs on this subject I found this thread.

Looks like MAX 7219 "Green MAX Tubes" are not so common, and 3/5/6 bits displays much more.

But looks like these guys Proto Supllies have developed their own MAX 7219 board to connect 3/4/5 (not 6) displays, which they also sell:

2022-01-12 20:56
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kjoussen
From: Hamburg, Germany
Posts: 178
iconQuote:

But looks like these guys Proto Supllies have developed their own MAX 7219 board to connect 3/4/5 (not 6) displays, which they also sell:



Looking good but unfortunately they do not ship outside US.

But these guys here do: https://www.loungepilot.com/
2022-01-12 21:38
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