25
Nov
09

More details on Logic Board and Button PCBS


logic board

It is simply a basic arduino combined with the unsped shield on one board.  Read my older posts for  a lot of the nitty-gritty.

Here are the features…

  1. Single board design
  2. Easy to assemble
  3. USB can be onboard FT232RL SMD chip or UM232 Plug-in module using same board layout.
  4. All Atmega328 (or Atmega168) analog inputs are broken out
  5. Extra Digital outs from Atmegas are broken out
  6. Aref pin if needed
  7. Ground pin
  8. Small footprint with large mounting holes

One of the features that was requested was to have the analog inputs of the atmega chip available, this way you can hack the firmware in the Arduino IDE for extra inputs aka sliders, knobs, photoresistors, whatever your heart can think of, and there is six of them!

Also I figured might as well breakout the other four unused outputs, two of which are PWM capable, so maybe you want to have a LED that pluses the BPM, anything can be run of these for the most part.

For those that don’t care, just ignore them!

Here is a pic.

The breakout for both the SMD USB chip and also the UM232 module are both there so the choice is yours.

I will document the assembly better when I have time so it’ll be easy for anyone to put together.

Livid Button PCB

This was an idea from the good folks over at monome.org fourms, to make a PCB that would work with the buttons pads sold by Livid instruments.

The Buttons are a pretty good deal, they do have a couple extra buttons on them, but you can hack them off and have a perfect 8×8 button pad!  The PCB is designed to use these pads in coordination with the above logic board to make a complete arduinome that is easy to source and ‘relitivly’ inexpensive, yet still customizable (LED color, extra knobs, etc.)

The buttons feel nice and have a nice action to them, they are high quality.  The PCB has square contacts because that is what Livid uses on their own devices, the contact has a ton of surface area so the buttons are very responsive no matter how they are pushed.

Also the PCB can be butted up next to each other to make a 128 or even a 256, these buttons are slight larger than the real 40h kits, but much smaller than the sparkfun buttons, a 128 would be about 7″x14″ so not overly large.

A pic of 2 next to each other in a 128 layout.  While it looks odd, it lines up perfect.

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7 Responses to “More details on Logic Board and Button PCBS”


  1. November 25, 2009 at 11:51 am

    Thank you for details, this board is amazing. Are you planning to develop a 128 all-in-one board too?

    • 2 starfiretech
      November 25, 2009 at 3:22 pm

      Well I’m not going to say that it hasn’t crossed my mind, but if I do I’ll be taking my time with it, and I’m a Hardware guy so rewriting the firmware for a 128 isn’t my thing

      • November 25, 2009 at 10:18 pm

        You’ll have to call that the “all-in-one-twenty-eight” if you make it. =)

      • November 26, 2009 at 5:04 am

        Ok I understand, I dont know anything about arduinome128, I don’t knowed that firmware wasn’t writed yet.
        What about a schematic of your board? 🙂

  2. 5 Arnie
    December 1, 2009 at 10:35 am

    After all the fuss that’s been made about monomes for years, seeing a setup like this is amazing! I’ll be all over this as soon as you have them available! 🙂

  3. April 24, 2011 at 2:52 pm

    Is there a place to order these boards from, like BatchPCB or similar? I’ve been searching everywhere and the Arduinome shields in general are really sparse right now. I thought I had found an Unsped shield on BatchPCB, but they appear to be down hard at the moment.

    I did find your gerber files, but I’m not much of an electronics guy. Is this a double layer board? Is there a list of the parts?

    I’m looking to make maybe five of these, so having the Arduino and Arduinome shield combined would be great.

    Thanks very much, Ian

  4. April 24, 2011 at 3:40 pm

    Actually, just saw the Monome mk stuff. Is it advisable to go that route these days?

    Thanks, Ian


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