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Member Since: January 7, 2010

Country: United States

  • Crap.. Now I should be stabbed for TRIPLE posty goodness. whoops

  • Crap. Sorry about double posty goodness

  • I am conflicted.... Well first for those of you that say that none of the logos are that impressive, you gotta think about it. It needs to be something you can etch on a board, weather by machine or by hand.
    This brings me to my conflict.

    3 Iconographic Microchip looks like it would be easily noticable on a board but just as a whole doesn't say "Open Source" to me.

    14 OpnKy. Meh. Doesn't make sense to me

    16 Golden Orb - Looks nice but no way you could etch that easily.

    28 Copyleft Chip - This one looks more like a winner. Simple, easy to etch, catchy. However you would have to think a little bigger if you want to spot it on a board. This one seems to be my winner at the moment.

    4 OSHW connections - Looks cool but for some might get mistaken for a place to put a crystal :P

    38... meh

    52 OSHW BOT Not too bad. It's definitely up in my top 3

    53 Osmosis - Would be perfect on a package. not too easy to etch lettering on a board though.

    84 Open Key (see #14)

    95 Geared (see #16)

  • sry dbl post. Admin please remove.

  • No, there are no logic circuits in this matrix (i.e. you can't use different voltages to make the colors change).
    The way it works is you have 24 pins. 8 pins are for negative lines for each row of leds, and then you have 8 pins that are for the positive lines for each column of the red leds, and then you have 8 positive pins that are for the yellow leds.
    To light them, you have to set a negative charge for which pin row you want, and a positive charge to the pin column for which color you want (you would charge red and yellow for that one led to get green).
    Womble's first post shows the correct pin order for this part btw.
    Also if you still don't quite understand, check out fritzing page on a 3x3 led matrix to get a gist of how it works:

  • *** I have found how to burn the Arduino Bootloader to the chip and have uploaded an Arduino sketch with this chip***
    I have documented a full how to for this for either the 8mhz internal oscillator or an external 16mhz oscillator here:
    The Arduino IDE is used to compile the sketch however I have not figured out how to flash the sketch straight from the IDE. For now you have to compile it in the IDE, and then copy the hex file out of the temp folder for the sketch and flash it to the chip using avrdude *or any preferred flash utility
    Hope to fix up something for the ide soon. I'll keep you AVR heads posted :)

  • I second that. The only thing about it with me though, is that I already know a fair amount of c, but I have always had issues when it comes to a small change in framework of different sub-types or updates of programming languages (say from hopping from c to java. Pretty close to the same thing, but some formatting is off and I just get confused). The copy-pastey nature of arduino helps me get by. I know how the code works, and after I finish something I know exactly what the code does and how to do other stuff with it, however it's just that until I do it myself in some means I always struggle.
    Oh but fyi, when I enter the contest it's gonna be with the Atmega32L, NOT the Arduino. I feel the Arduino is good just for prototyping for the most part. I mean yes of course you can take the chip out of the board and yadda yadda, but there's just nothing like taking a chip fresh, soldering to the board, getting your project setup on it (minding that you have worked it all out on paper so you know it would work..) and then breaking out your own interface cable to burn the bootloader and program. It just screams "I MADE IT!" not "It's a bunch of stuff on a breadboard!"

  • Wow what a coincidence! My Atmega32L and my 8x8 two color screen just arrived :)
    I know what I'll be doing for the next few days.

  • nojo:

    is it possible to download the arduino bootloader thingy on this??
    Yes you can, but you have to either A. get the AVR programmer, B. get a dev board for it, or C. if you already have an arduino, wire the chip to the arduino board and use the ICP program (In Circuit Program) to program it with. It's basically like turning the Arduino into an AVR programmer.

  • YAY! Got my email :)
    Got my $10 for the 1 shot question :P
    Thankx you SparkFun! I don't care if I would have got anything! I am here, and am happy! I lost out last year and was still happy. If I wouldn't have got jack this year, I would still be happy!

No public wish lists :(