Raw Thrills Pac Man LED Desk Clock now 50% off...$39.99!

I'm pretty sure you need to do the DTR mod ( https://learn.adafruit.com/ftdi-friend/programming-blank-avrs ), even to read the data.

Did that. I'll take some photos of my work, but rest assured I soldered the DTR exactly how they explained.

That page did NOT say where the white wire (DTR) goes, but since only 1 was free, I'm assuming pin #5 (next to #6 green).

I think the issue at hand might be the nootropic rgb matrix backpack pcb itself...

Here's the schematics of it:

rgb-matrix-backpack-schematics.jpg


Take care to notice pin #6 (GRN) which is green wire (not ground, cuz thats BLK).

That pin goes directly into the atmel IC pin #1, which is the RESET pin.

So everytime I execute the avrdude command, you can literally see the led board flash on and off as a reset would do. This I think may be the problem, but unsure how to fix it.

Basically the avrdude using correct -c and -p and -P would give valid signature of the atmel IC, but since it's coming back as 00 00 00 everytime, there's definitely a connection issue.

PLEASE HELP!
 

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I got mine a few months ago, but it was a higher price.
I wish more of these were manufactured, but at least I was able to snag one for my console game room before it was too late.
 
I think the issue at hand might be the nootropic rgb matrix backpack pcb itself...
Yeah, it looks like they only brought out the pins for the serial bootloader. You need to access the MOSI, MISO, and SCK pins (pins 17 - 19), which aren't brought out to any pins on that board. The Pacman board looks like it brought those pins out on its header though.

DogP
 
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Managed to grab the code. Looking at it now. Pretty sure it was C because the resulting assembly is a mess :)
 

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I've patched the original code and added the rtc hardware. The clock will grab actual time from the rtc everyday at midnight. Was a pain in the ass to do but also kind of fun.
 
I've patched the original code and added the rtc hardware. The clock will grab actual time from the rtc everyday at midnight. Was a pain in the ass to do but also kind of fun.

anyway you could share that? mine didn't come with the RTC and does not keep time... I also have one a friend of mine put 12v into (hooked up the wrong AC adapter) which killed the 328 and the panel... the panels are available from adafruit and I can steal a 328 from an arduino board but need to blow the code into it

thanks!
 
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