Teensyduino

**MiL0** · 10-13-2011, 04:05 AM

Originally Posted by timcrawf88

do you have traktor? if so open traktor and try the midi mapping, that's how i would figure out if mine worked. Also try just straight uploading my code exactly how it is. see how that works.

Thanks Tim, that sorted it!

It seems that MIDIOX doesn't work properly if you select the Teensy as both the Midi Input and the Midi Output (I guess it gets confused - some sort of endless loop perhaps?). If you set MIDIOX so that Teensy Midi is just the Midi Input then it picks up the midi messages just fine.

Thanks for your help

**timcrawf88** · 10-13-2011, 11:16 AM

Glad you got it working.

Make sure you post pics when its done so we can see it

**MiL0** · 10-14-2011, 05:32 AM

will do - can't wait to show it off to everyone!

**MiL0** · 10-21-2011, 05:04 AM

my next problem is that when I connect more than 4 pots to my teensduino it spits out constant midi cc data. I've tried different inputs on the teensy but still get the same problem. I've also tried a number of different scripts and tried on both of the teensy's I own; same problem.

It seems like there's a sensitivity problem - like it's picking up constant midi data from a pot even when it's not plugged into the teensy input. Any ideas? I'm gonna post a video later to show what I mean...

**MiL0** · 10-21-2011, 03:40 PM

http://www.youtube.com/watch?v=xUmOSDi6bW4

any ideas?

edit: this is using the code from here:

http://unsymbol.wordpress.com/2011/0...di-controller/

but I get the same problem when I use the arcade midi instructables teensy code as well.

**Juri** · 10-23-2011, 02:57 AM

I've been following this thread for a while now. Seems really interesting and I'm gonna try to build my own teensy midi controller soon. I probably get all the necessary parts during next week, so then I can try the code and see if I can use more than 4 pots with it. But Arduino definitely spits out random data if you read the analog inputs without any pots connected. I just tried it out with Arduino Uno and the 'AnalogReadSerial' sketch.

**timcrawf88** · 10-24-2011, 10:43 AM

Originally Posted by MiL0

my next problem is that when I connect more than 4 pots to my teensduino it spits out constant midi cc data. I've tried different inputs on the teensy but still get the same problem. I've also tried a number of different scripts and tried on both of the teensy's I own; same problem.

It seems like there's a sensitivity problem - like it's picking up constant midi data from a pot even when it's not plugged into the teensy input. Any ideas? I'm gonna post a video later to show what I mean...

ok so my first advice would be to double and triple check the wiring, make sure all of the ground and power cables are correct. After that try it in traktor and see if it works, i know my pots have trouble in virtual dj but work fine in traktor.

**Juri** · 10-26-2011, 06:53 AM

Just a quick reply (firefox crashed and I lost everything I just writed). I got my Teensy++, breadboarded 6 potentiometers and uploaded the code from Philip Cunninhams site. Worked really well in Renoise, just like any other midi controller. I also downloaded Midi-ox to really see what happens. First I got lot of random data, but after checking all connections and pressing parts firmly down everything worked like a charm. Seems like this device is sensitive to random noise caused by loose connections.

**Juri** · 11-18-2011, 05:57 AM

I got inspired by this fantastic thread and finally got my own teensy midi controller project going: http://www.jurimusic.com/diy-arcade-...ler-episode-1/