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I am going to use 4x TPIC6B595 and 4x 7 segment display with common anode. Below You Can find vendor site of this display. https://sklep.avt.pl/wyswietlacz-led-2-30-57mm-zielony-wa.html

Here is my diagram: diagram

I want to display 4 digit number. Will it work? Or do i need also MIC2981 chip to supply more current?

I didn't use shift registers like TPIC before. Could You show me a basic code to make display show 4 digit number?

Thanks in advance.

asked Apr 11, 2023 at 9:46
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    In this case you don't need the MIC2981 to switch the anodes because the anodes can be continuously powered. In your previous attempt, which used a single shift register and multiplexing, it was necessary to switch the anodes. Check that 9 volts is enough before proceeding too far. 12volts is probably better with that display. You may find this project helpful as a code example: github.com/HeikkiHietala/large-7-segment-led-display/blob/… Commented Apr 11, 2023 at 11:25
  • Thank You for Your big support! That's what I need. Commented Apr 11, 2023 at 11:52

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