144 LED Games Console Project

[mtripoli]

I don't know if it's the language barrier or what, but hell, I'll give it a shot, again.

First, I don't know what the files are you keep posting, they have SCH and BRD extensions. I'm guessing that these belong to Eagle or something. So look, not everyone has these programs. I have Orcad and it uses the same extensions which means nothing. Save the output as PDF or jpeg or something that all PC's can open.

Second, I've posted the schematic from the system that ART did at the beginning. It looks like you or someone decided to change the drive scheme from emitter follower to open collector (if you don't know those terms stop working on this project and get a basic electronics book and do some reading). That's fine if you understand what you are doing, but as far as I know the code that Art wrote won't work with this design. So I'm guessing that after someone answers your "R19" question and if you get though construction of an actual PCB and get it stuffed you'll blindly run the code and it won't work and a new thread will start about how the code is wrong. But I digress...

As drawn in the schematic posted by "funnydrummer" R19 is connected to the column (anode) pin 13 of LED module (LED6) and to the pin 2 of the PIC which is pulled up by a 10k resistor. As drawn it does nothing. When you push the button tied to R30 the whole line of leds will light, that's it. There are column drivers through resistors R20-R29; I have no idea why they are different on LED1,3 and 5 than on LED2,4 and 6 but hey, whatever. The row connections are different on LED5 and LED6 as well. It may be some "Charlieplexing scheme" or it may simply be someone screwed up drawing the schematic, eh who knows. As its drawn it will be lots of fun to code for (that's sarcasm).

I'm not trying to be an a-hole or anything, but it sounds like you don't really know what you're doing and have jumped in way over your head. Simply copying schematics and making PCB's might work for little opamp audio circuits and such, but there are concepts going on here that you don't have the grasp of. Have you done a simple project yet and just blinked an led?

Also, these schematics are drawn horribly. Wires running all over the place like that is a recipe for disaster. Look at the schematic I drew; clean, clearly labeled, etc.

The original schematic:
http://www.scarydesign.com/144led/144LEDSCHEMATIC.pdf