Backpack for 4x40

[empi00]

Hello,

I think i have destroyed my Matrix Orbital Display with Overvoltage. (12Volt, instead of 5Volt)
--> Now i want to try to change the backpack!!
Is there any backpack for 4x40?? (prefered PIC --> F628A, F877, F877A)

greetings
empi

PS: i searched, but i can not find caesar's source, or so!

[GizmoTheGreen]

not sure if there is any.

but the usb2lcd+ project by jeff plans to add support for 4x40 at some point, not sure when though.
that project uses a pic18f2550 or 4550.

you could hook your 4x40 screen up to two of these and run two instances of lcdsmartie, wont be the same thing but better than nothing.

[mattcro]

If you applied 12V instead of 5V, the LCD is probably destroyed too...

I don't knowe about backpacks that support 4x40, but you cannot simply use 2 backpacks connected to a 4x40 display (to emulate two 4x20 displays) because the data and control lines from the backpacks cannot be wired in parallel - they will interfere with each other and you'll get garbage on the LCD or even damage the backpacks.

[caesar]

Searched for my old project and found the hex file for you: http://forums.lcdsmartie.org/viewtopic. ... 769#p15769