I am looking to add a small qwerty keyboard to my project (has an Atmel MCU and LCD). Do not want to use PS2 keyboards. Where can I get a small keyboard (like the one used in handheld organizers/PDAs/databanks)? Hope someone could give me some pointers. Thanks!!
qwerty keyboard
Feb 11, 2004
3 Replies
PDAs and databank devices use custom keyboards. The housing for the appliance is an engineered part of the keyboard.
Chicony (and other mfrs for that matter; Alps I think) makes some small standard keyboard modules for laptops. That's about as close as you're likely to get, in standard parts.
If you just want to build a prototype, I can probably find you one or two small laptop size keyboards (they come out to a raw matrix, no onboard circuitry at all). They were originally supplied with Cirrus EDB7212 eval boards. But respond quickly, because I'm moving offices and throwing away (or worse, filing) a lot of junk.
Noel's Lab
www.noels-lab.com
Chips, firmware, circuits and embedded systems
Thanks for the offer, Lewin. I think I will just use a PS2 keyboard for prototyping and then work on adding a custom keyboard later. BTW, I have your book and it is great!!! It is a good book for beginners as well as experienced designers new to ARM based processors.
Regards,
MCU
keyboard
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