Controlling a 7 Segment Display with Shift Registers and SPI [Clock Pt. 2]

[@Smit7ua]

Thanks for your material, great job an explanation🎉👍👍👍🇺🇦

[@harveyellis6758]

Cool project! I am building a clock based on DS12C887. I prefer to do things with old hardware, rather than software.

[@elisabettasteele5133]

Wow!!!

[@Enigma758]

I'm curious to know if you considered multiplexing the display. With 8 common segments + 4 enable lines, you would have only 12 outputs which would required only 2 shift registers (or possibly 1, if I/O available for the enable lines). I think your approach is fine, I'm just curious if you considered multiplexing, and if so, why you decided against it. Thanks!

[@5VLogic]

No, to be honest I didn't think about it. It's an interesting idea

[@Enigma758]

@@5VLogic Thanks for responding. Other than adding a bit more complexity to the code, the only other disadvantage of multiplexing I can think of is less brightness due to the reduced duty cycle. But practically speaking, most LED displays in clock radios and such are multiplexed and don't have a brightness problem.

[@keithcitizen4855]

I really enjoyed your clip , best little demonstration of SPI/595