At 16:07 29/06/00 +0100, you wrote: >On Thu, Jun 29, 2000 at 03:29:47PM +0200, Ralf Ackermann wrote: >> Hello, >> >> Does anybody have any further information about the protocol / specs >> used by the Ericsson "Chatboard" mini keyboard originally designed for use >> with mobile phones? >> http://www.ericsson.com/chatboard/europe/ The phones the chatboard work with accept a TTL level input thru the connector >> >> Since it looks rather robust i'd like to make a test interfacing it with a >> wearable. (preferable via an RS232 interface, but further >> "(re-)engineering would also be an option) A simple MAX 203 chip provides RS232 -> TTL conversion, or even an old digital diary PC Link cable works well. > >I don't know anything about the Chatboard, but if you're looking to do >something like this then consider one of the folding keyboards for the >Palm Pilot - since that works through RS232. > Nice but MUCH bigger and more expensive, not exactly wrist mountable either. > > Jorn http://wearable.8k.com Wearable Computers Australia Resource Site -- Subcription/unsubscription/info requests: send e-mail with subject of "subscribe", "unsubscribe", or "info" toWear-Hard Mailing List Archive (searchable): http://wearables.blu.org
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