DIY USB MIDI DEVICE, am i dreaming?
  • EATYoneEATYone

    Hi, this morning i found an interessant post on the Arduino playground. With the new generation of arduino board, they have switched the ftdi chip (usb to serial) by an atmel one, that’s not really a news. But what i read, is that you can play with the chip firmware and can build it as a general midi device :))))) Is some of u have tested? speed? .... (fuuuuuuccckkkk i let the only one uno board at work and i’m in week end nowwwwww gggrrrrr can’t test it!)

  • EATYoneEATYone

    sorry here’s the link:

    http://arduino.cc/en/Hacking/MidiWith8U2Firmware

  • xray303xray303
    It is also compatible with the Adafruit Atmega32u4 Breakout Board+ -

    http://www.adafruit.com/index.php?main_page=product_info&cPath=42&products_id=296
  • altitudealtitude

    very cool. The atmel device is used on the GM5 and that thing works brilliantly

  • EATYoneEATYone

    Gooood, and im at work now with a coffee, and an Uno, i’ll try to found 10 min and give it a try :)

  • tb323tb323
    Found a quick and dirty usb-midi solution a while ago, if you're interested:

    http://shiftmore.blogspot.com/2010/01/quick-and-dirty-arduino-midi-over-usb.html

    Not as fancy though.. :)
  • EATYoneEATYone

    I’ve got the exactly same usb cable, but it didn’t work really well, lot of latency, and missed data…

  • pmsrpmsr
    Those el-cheapo midi usb cables use the general midi drivers on Windows XP, and these can be awful when it comes to latency. They also have issues with data corruption with bulk sysex messages. Rather stay away from them.
  • EATYoneEATYone

    It’s what i want to say If my English was better :) those câble have to go to trash :))

  • tb323tb323
    Hehe, alright. I won't try anything with those cheap cables then :))
  • EATYoneEATYone

    so after some times, i took one hour to test the Atmega8u2 firmware…And it rocks!!!!!!!!!! My arduino smd UNO is now a midi device without driver, without any serial/usb/serial soft converter or max or anything else… I just try to send CCs with pots to Live and it’s ok and reactiv! Have to build some code now….

    Olivier can u give me a little piece of ur brain please for this task? :DDDD

  • altitudealtitude

    You could get preprogrammed chips from ploytec pretty cheap..

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