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| Grasshopper:
--- Quote from: Trimoor on December 22, 2004, 02:03:10 pm ---If you remember the KE series keyboard encoders, some of them use matricies. Ghosting can be avoided by sequentially scanning the matrix instead of waiting for a button to be pressed--interrupt vs. polling. From the site: (translated) --- Quote ---it does not have problem of ghosting (keyboard keys ghost), as in hack of keyboard --- End quote --- Here is a translated link: Translated --- End quote --- Unfortunately, I don't believe that's true. The only way to avoid ghosting is to use diodes. |
| brained:
Trimoor, I've bought all the materials to build one. I'll give it a try this weekend and let you know how everything did. I hope it works, 'cause it seems to be a very simple device to build, and cheap too. |
| Hoagie_one:
what does the red arrow with a bar pointing down mean in teh diagram? |
| Thenasty:
--- Quote from: Hoagie_one on January 07, 2005, 02:26:03 pm ---what does the red arrow with a bar pointing down mean in teh diagram? --- End quote --- DIODES |
| Hoagie_one:
thanks. what about the little yellow dots after teh diodes? |
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