They use jumpers to set backlight and power polarity.
It also has a 2x9 pinout (holes 3 to 18 for single controller, holes 1 to 16 for dual controller LCD) with the single controller LCD getting backlight from pins 15 and 16, and with a separate backlight connection for larger LCDs (all my 4x40s have separate backlight pinout)
[quote author="ian"] There isn't an HTTP server for the uIP stack yet, but there are a bunch of open source embedded server projects that implement a full or partial HTTP server. It looks like they have a new version since I last saw it, with a bunch of new features and good documentation: http://www.tuxgraphics.org/electronics/ ... tack.shtml [/quote]
Ian, that is a VERY useful link, thank you. I roll my own AVR + ENC28J60 boards for projects, and that's the 3rd source of code I've found for it, and they all seem to be based off the same thing - its amazing how code travels.
Second code from here (v1.1) http://blog.thiseldo.co.uk/?p=344 and is pretty good, and seems to be based on an older version of the code from the link Ian gave
Was studying the PCB tonight and noticed that R4A and R5A aren't connected to anything on the opposite side of the LEDs, i.e. the ethernet jack LEDs aren't connected (they are in the schematic)
I've just fired up my twatch, updated the firmware to enable the backlight, and noticed a possible problem with the LCD.
As the characters are scrolling, each character takes the same amount of time to fade out (terrible refresh rate?), as the characters take to scroll, the effect is most of the time the previous letter is mixed with the new character, making the scrolling text very hard to read.
I also bought the same LCD from Seeed on its own, and my project with that is having the exact same symptoms.
