Chuck and Arduino?

WeHaveTheTechnology · Joined: Sep 22, 2008 Posts: 4 Location: Bogotá

Hallo!

My first unsuccessful experiments in connecting the Arduino board with Chuck consisted in making the microcontroller to send some MIDI messages through the USB port, but when trying the Chuck --probe command to list all the devices attached it doesn't seem to recognize the board at all.

Any other initiatives to build on?

Any suggestions?

Critics?

Tomatoes?

Thanks.

blue hell · Posted: Mon Sep 22, 2008 4:11 pm Post subject:

I'm not into any details re. this, so this could be un-smart easily ... but usually one sends MIDI through a MIDI port and not through an USB port, could that be the issue?

welcome

anyway, no tomatoes (sorry, I ate 'm all) Laughing

WeHaveTheTechnology · Joined: Sep 22, 2008 Posts: 4 Location: Bogotá

Hi Blue Hell and thanks for the quick reply.

I think you're right, but i thought that maybe if i were using the MIDI baud rate even though I was sending the message through the USB port it was going to be enough to trick the machine so it would have said hey, this is a MIDI message! but not.

I was lucky you ate all the tomatoes.

Kassen · Posted: Mon Sep 22, 2008 7:27 pm Post subject:

:¬)

I fear you at least need to tell the computer "hi, I'm a MIDI device". ChucK makes things simple but not quite *that* simple. For MIDI devices we depend on the OS so if you can convince the OS your Arduino is a MIDI box you're in business but I think they instead pretend to be a parallel port.

Alternately if you can send those messages anyway, why not send them over a simple wire to a "real" MIDI port? I seem to remember there was a simple implementation online that didn't conform 100% to the spec but is supposed to work

radarsat1 · Joined: Mar 14, 2008 Posts: 85 Location: Montreal

Doesn't the Arduino show up as a serial port?
I think there's no serial I/O in Chuck, is there?
It might be best to write a little C/Java/Python program that runs on the host, reading serial bytes and converting them to OSC messages.

http://pyserial.wiki.sourceforge.net/pySerial
http://rxtx.qbang.org/wiki/forums.html/Writing_%22Hello_World%22_to_a_USB_to_serial_converter

WeHaveTheTechnology · Joined: Sep 22, 2008 Posts: 4 Location: Bogotá

Hi everyone and thanks very much for the advice

radarsat1,
i have downloaded the Python script and i'm starting to figure out the rest. For the moment i've been able to send messages back and forth to the arduino board and save incoming ones in variables, it seems quiet exciting so far, but no Chucking connection yet. As I'm not too familiar with Python it might take me a while, but I think it's pointing in the right direction.

Could the connection to Chuck be implemented using a socket? Shocked

Any ideas on this?

Kassen · Posted: Tue Sep 23, 2008 8:28 pm Post subject:

radarsat1 · Joined: Mar 14, 2008 Posts: 85 Location: Montreal

Kassen · Posted: Wed Sep 24, 2008 10:17 am Post subject:

That's not a bad idea; Python&ChucK seems a relatively popular combination. Processing<->ChucK would be good as well.

WeHaveTheTechnology · Joined: Sep 22, 2008 Posts: 4 Location: Bogotá