14mm 7seg_cc 6 digit

ertansuluagac · Joined: 13 Jul 2017 Posts: 135 Location: IZMIR

How to drive 14mm 7 segment 6 digit display Do you have a sample that works?
I tried to drive with udn2981A and uln2003A not working properly.
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Es

PrinceNai · Joined: 31 Oct 2016 Posts: 480 Location: Montenegro

It's very interesting to read this kind of questions. You ask a question without giving any info that would help anyone to at least try to help you. What display? What PIC? What doesn't work? What have you tried (with code)? It would be easier to answer on how could you get to the Moon. With a rocket, or if you happen to know Scotty, he could beam you there.

temtronic · Posted: Fri Nov 15, 2019 3:44 pm

you need to search 'how to multiplex 6 digit LED display' or something similar.
There's a blue 'search' button above this window.
Several people have done this.
The 'trick' is that the overall 'scan' time has to be faster than about 50Hz. You also need to calculate the correct load resistor. lower=brighter dispaly, higher = dim display.

The overall sequence is to load (send) the segment data (abcdefg) for the 1st digit,then enable that digit driver, pause a bit, then load the segment data for the 2nd digit, enable the 2nd digit driver, pause a bit,....repeat for all 6 digits.
If the scan time is fast enough, your eyes will see all 6 digits appear smoothly.

Jay

PrinceNai · Joined: 31 Oct 2016 Posts: 480 Location: Montenegro

Just as I said. People here ARE TRYING TO HELP. But without a specific question, no specific answer. Microchip has an appnote on multiplexing 7-segment displays. Coded in assembler, true. But they give plenty of info on how and why.

temtronic · Posted: Sat Nov 16, 2019 8:08 am

https://www.google.com/search?source=hp&ei=DALQXa-FJ-_B_Qb7mbm4DA&q=pic+ccs+c+code+multipex+display&oq=pic+ccs+c+code+multipex+display&gs_l=psy-ab.3..33i160.1814.9627..10069...0.0..0.189.3775.10j21......0....1..gws-wiz.......0i131j0j0i10j0i22i30j33i22i29i30j33i21j33i13i21j33i10j33i10i160.2c8IwlznXdQ&ved=0ahUKEwivu5Wa8-7lAhXvYN8KHftMDscQ4dUDCAc&uact=5
over 1 MILLION hits....
several are HERE !!

Jay