Hein (fub) wrote,

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I have a train of three shift registers for my dad's binary-LED-clock-with-numerical-readout, and I can't get it to work reliably. Sometimes it works the way I want/need it to, sometimes it doesn't. Very frustrating -- if the bug occurs consistently, then at least you can change things around to find out where the problem is.

The thing is, digital electronics still need an analog world to run on -- and I find it hard to wrap my head around that. The lines I use to drive the shift registers are a lot longer than I used in the MACH F display -- perhaps the charge of the data lines is not reliably registered at the other end? Perhaps I need to drive transistors with the pins of the PIC...
Tags: electronics project

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