RGB Matrix V3

I've switched to using SMD components for the ICs and put the quartz and a 2nd switch + stacking headers back on. Seeedstudio will ship me 5 white PCBs. I've used their propaganda service for open source designs. So if you want one too, you'll be able to order it there once I've confirmed it actually works ;-)

"What a mess!" BTW, when will Duke Nukem 4ever be released ?

I just couldn't flash the bootloader with USBtinyISP. According to the datasheet the fuses should be set to internal oscillator, so it should have worked without the quartz, but it didn't! I thought I had fried the chip, but it just needed an external clock source

Front side completed and cleaned. This laminated white solder stop mask is great! Virtually indestructible with my soldering iron.

Back side completed and cleaned.

Hooked up to an FTDI cable.

Actually seeing these with my own eyes, seeing that I don't see much at all makes me wonder how I'll go about soldering these.

The one with the blue LED is the I²C master and transmits a button status, the one with the RGB matrix receives and reacts. The next step would be to synchronize the two boards. This could be used for an even bigger matrix with scrolling text.

The first PCB version of it. REV 3.00

The first PCB version of it. REV 3.00

I got 6 :-)

The ICSP header is already in place, now I'm doing my first ever SMD soldering. The ATmega168 comes in a TQFP32 package.

Of course I got a few solder bridges. You can _never_ have too much flux! I intended to do it pin by pin, but ended up with a mixture of that and flood and suck.

BTW, I always have a few left. Interested ? See my blog for more info.

BTW, I always have a few left. Interested ? See my blog for more info.

The new V3.03 boards now support auto reset (and disabling it with a jumper) and use 74HC595 instead of 74HCT595. This adds some brightness to the matrix and gives much better white light reproduction. Also I've fixed a minor pin offset in the LED matrix connectors. The silkscreen was also updated and now shows the correct outline of the LED matrix. Pin-1 markers for all relevant components have been enhanced as well.