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Re: using character LCD as display.

From: Doug Sutherland <>
Date: Thu, 20 Mar 2003 19:08:10 +0100

Francois wrote:

 > considering the cost of small quantity for these displays,
 > why not just use a small pda with a serial port as a
 > terminal?  a palmos device could function as a terminal
 > with it's onscreen keyboard.

Sure you can do that. Taking that idea a step further I
have considered using a PDA as only a GUI, by blowing away
the palm stuff and writing C code to make a GUI environment.
This way you could use the touch screen, and have apps that
run on the wearable use the PDA for its GUI layer. If you
compare the price of the low end palm with displays and
touch screens, it is cheaper.

However, I still like the idea of obsoleting PDAs and all
other devices (cell phones etc) and converging everything
into a wearable. Also, I like the idea of embedding the
displays into clothing and fashionable accessories.

Jeremy's questions on text LCD and keyboard (as terminal)
got me motivated to continue my project on this. I am
right now working on some microcontroller code for one of
the Scott Edwards text/graphics LCDs and the Cirque pocket
keyboard. Actually I have the code for both of these
working already, I just need to do a few tweaks. It is
only 4 lines 20 characters, so it won't make a very good
terminal, but I want to try the getty login with this.
After I get it working I might look for a larger display.
I'm thinking about putting this one in another sleeve
configuration in a coat.

   - Doug

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