LCD serial backpacks

[Archangel]

Nice to find some code already made for serial LCD, I just burned the backpack on my cool Serial LCD

no prob, I had 4 LCDs waiting for me to drive them with a16F628

I just tried the code with INstant interupt, which took me an hour to setup the whole thing to compile(not bad actually), but now I see only stranges characters appearing on the LCD.

like I send "b" char, and the dipslay will do '

do I need to create a map of matching characters, or is there a tweak to get the correct display?

in attached picture, I've sent AAAAAAAAAAAAaaaaaaaaaa using the serial communicator from Mecanique,
it displayed ___________________000000000000000 on the LCD?


it's driven by a 16F628a, running at 20mhz
Display is 4x20 from Orient Display, saying it's requiring a S6A0069 and is compatible with HD44780 4/8bit.
http://character-lcd-lcds.shopeio.co...haracter%20Lcd

I've blanked all define to run from default except for
DEFINE LCD_LINES 4
because I ain't know how to tweaks all the parameters.
Started to play with other defines but not luck yet.

maybe the answer is in there?

You have to send the data true, if you send it inverted for some reason then invert it again with a transistor to get true. If you change the defines for the LCD this code will work with the PC boards sold by wulfden too.
here is a snippet to give you an idea of how to format your code
serout PortB.4,T9600,[254,128,"9600 baud line 1 T~"] '128 so as not to add space
serout PortB.4,T9600,[254,192,"9600 baud line 2~"]
pause 100