Hein (fub) wrote,

  • Mood:


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

  • Final RPG-a-Day: Thank

    The last prompt for RPG-a-Day this year is ‘Thank’. If you have read every entry of this year’s RPG-a-Day, then I certainly…

  • Next-to-last RPG-a-Day: Mention

    Today’s prompt is ‘Mention’. I guess this is where I mention people I look up to, or websites I frequent? Ok, here’s…

  • RPG-a-Day 29: System

    We’re in the home stretch for this year’s RPG-a-Day! Today’s prompt is ‘System’. Paulo, who has been doing…

  • Post a new comment


    Anonymous comments are disabled in this journal

    default userpic

    Your reply will be screened

    Your IP address will be recorded