Search found 3 matches

by Veramacor
Wed Nov 28, 2007 2:43 pm
Forum: IO-Warrior English
Topic: I-O Warrior 40 switch matrix question
Replies: 5
Views: 12673

That is exactly what I had hoped for!

One last question on the switch matrix and extra buttons

I'm not positive, but if I had 68 buttons and no LEDS, No Relays, just 68 buttons, can I drive the whole thing off of USB power?

Thanks again

Jeff
by Veramacor
Tue Nov 27, 2007 3:27 pm
Forum: IO-Warrior English
Topic: I-O Warrior 40 switch matrix question
Replies: 5
Views: 12673

Thanks,

I'm aware of the 8x8 matrix function, and I'd like to use that if I can...


But, I have 68 keys to take care of ie

64 keys that will all have diodes on them PLUS:

4 pushbuttons that are not part of the matrix.

Can I run the 8x8 function at the same time as I am looking at other I/O pins ...
by Veramacor
Sun Nov 25, 2007 3:24 pm
Forum: IO-Warrior English
Topic: I-O Warrior 40 switch matrix question
Replies: 5
Views: 12673

I-O Warrior 40 switch matrix question

Hi there,

I see in your examples that you are using shift registers to allow driving of an 8x8 LED/Switch matrix.

I would like to keep the chip count down in my design and am looking to have the IO-Warrior as my only IC chip.

My question: Can the IO-Warrior have an 8x8 switch matrix driven at the ...