Hi,
I wish to connect a lcd to my WRAP-Board. I'm currently examining on
what connector the best results there will be.
I2C - the last I read here was "and beware! we are planning new and
unlikely features to this interface (yes, we are also adding the kitchen
sink)" - one year ago. What happened meanwhile? Are there any circuit
diagrams available?
USB - I read about the thing, Till Harbaum developed, but I think, it's
too complicatet. The WRAP-USB is also limited to 100mA - no way to drive
a LCD and the interface.
I prefer - until now - using the "J2" - LPC-Expansion on my WRAP-Board.
There are enough GPIO-Pins and a 3.3V power supply. Is lcd4linux already
able to support this way?
But that would not be enough for me .-))
I want also to have a RGB-backlight. Take a look at
http://www.lcd-module.de/eng/dog/dog.htm - theese "display on glas"
modules are running with 3.3V, there are many colors and
backlight-colors available and - a RGB-backlight.
I think, the power consumption is o.k. for the WRAP-connector.
So, how to interface with that beast? I will use 2 shift registers
(74HC595) what gives me 16 lines - D0 ... D7, E, RW, and RS. The
remaining 5 lines will be good for colorizing the backlight in 32
different colors.
>From my WRAP I will make use of 4 GPIO lines. 2 for the input of the
shift registers, 1 for both clock inputs and 1 for the latch.
So, how far is that possible with lcd4linux? I couldn't took a look into
the lcd4linux-source - it seems the server is down for the last few days
... if anybody please could mail me - thanks.
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