Quote:
Originally Posted by bobski
Well, without the expander we'll have what? One digital I/O pin free?
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I'm not trying to bust your chops here bob, just clarifying.
looking at the 328 schematic, I see 2 analog and 2 pwm pins, and rx and tx if you don't need a bootloader
http://opengauge.googlecode.com/svn/...no/mpguino.png
though tx can be hooked up directly to this sd card logger
http://ecomodder.com/forum/showthrea...ger-15066.html
Quote:
Originally Posted by bobski
Yeah, you can do that without I2C but the umbilical ends up being a 1/2", 13 wire mass.
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I understand that you are targeting the arduino platform, but the cpu and support components all fit nicely behind the lcd with a custom pcb, and the whole unit only needs 4 wires to hook up. Certainly your component count is going up here too. Can you pwm the contrast/brightness via i2c?