Tuesday, March 4, 2008

Arduino Progress

I just made my first ever double-sided circuit board! w00t! It's so beautiful....ahem...sorry about that. I've got the board made for the arduino, I etched it using iron-ons and a sharpie, I'll try to post up a walthrough and pics later. Got most of the holes drilled for all the components. Flashed the atmega8 with the arduino bootloader (finally, after trying for 4 hours and then realizing that I'm a freakin idiot). I was trying to flash it with a simple sp12 parallel port programmer that I had built a while back for another AVR project, and after I set the first fuse (which coincidentally set it to use an external clock source) it stopped responding altogether. Then I realized that the arduino board uses a crystal for an external clock source and it's setup for in-circuit programming, so I soldered the clock directly to the xtal legs on the atmega8 and presto, it responded to all commands. So now all that's left is finishing drilling the holes and soldering in the components! That makes me happy.

I have the iron-ons for the obdII interface ready because I figured out how to convert gerber files to printable layouts, so I'll start on that after the arduino's finished. I'll upload the layouts for it and the arduino later.

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