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  1. Crystal Wizard

    How do I multiplex lots of switches/LEDs with my Arduino

    I am looking at building a Project (https://www.electronicspoint.com/threads/assorted-gubbins-on-toy-tank.277654/ ) and need to control about 13 LEDs, using maybe 12 Buttons. I do not have that many I/O pins on the Arduino Micro that I am planning on using (especially once the other parts I...
  2. Crystal Wizard

    Assorted Gubbins on toy tank

    While I'm waiting for my bits to arrive, I have resurrected an old idea I had. I play wargames (WH40k, if you know it), and was wondering about adding some electronics to one of the vehicles I am working on. Ideas: Microswitch underneath so that when it is picked up to move, it makes "engine"...
  3. Crystal Wizard

    Greetings from the Crystal Wizard!

    Hello all! I'm coming back to electronics after 20+ years away, so please be gentle as I find my feet! Strange how some things have changed so much, and others have not changed at all! Very disconcerting! :) I've got a Major project in the pipeline, but will be building up to it with many small...
  4. Crystal Wizard

    Digital Walking Cane

    HI. New Member, returning to electronics after many years away. I have an idea for a project, but am unsure where to start, so any advice would be welcome. I would like to build a Walking Cane, with some built-in electronics. The main Idea would be some Storage (SD card or similar), a few...
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