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Author Topic: Help with circuit?  (Read 1153 times)

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Offline adventurepoop

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  • Posts: 109
  • Location: IL
  • I make keyboards, I guess.
Help with circuit?
« on: Thu, 22 May 2014, 14:08:35 »
After finding out I wired up my 5 key keyboard wrong last time, and finding out I only had 3 usable io, I came up with this as a circuit.
http://imgur.com/71QqrdD

With switches 1-5 and io abc, Would this work? I don't know much about circuits but it looks like it to me :o
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Offline Smasher816

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Re: Help with circuit?
« Reply #1 on: Thu, 22 May 2014, 14:49:38 »
Mind rotating the image, it would help everyone see it better. Imgur has that feature built into its edit menu.
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Offline adventurepoop

  • Thread Starter
  • Posts: 109
  • Location: IL
  • I make keyboards, I guess.
Re: Help with circuit?
« Reply #2 on: Thu, 22 May 2014, 15:22:42 »
Actually I figured it out, but yeah I didn't know at the time
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Offline Smasher816

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  • Location: return STATE_MISSOURI;
Re: Help with circuit?
« Reply #3 on: Thu, 22 May 2014, 17:07:51 »
Glad you got it figured out.
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Offline OldDataHands

  • Posts: 280
  • Location: Michigan
Re: Help with circuit?
« Reply #4 on: Thu, 22 May 2014, 17:26:36 »
Quote from: adventurepoop on Thu, 22 May 2014, 14:08:35
After finding out I wired up my 5 key keyboard wrong last time, and finding out I only had 3 usable io, I came up with this as a circuit.
http://imgur.com/71QqrdD

With switches 1-5 and io abc, Would this work? I don't know much about circuits but it looks like it to me :o

Nope. This circuit will not do what you want. For example: switches 1 and 5 are indistinguishable. As long as you are ok with ghosting above 1 key pressed you can use more diodes... if you have analog inputs, you have some good options...
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