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Author Topic: Arduino digital out --> audio interface digital in  (Read 1173 times)
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hi there,

Anyone tried to send data from the arduino's digital inputs to the digital input (coaxial) of an audio interface. As serial communication seems a bit 'slow' I assume this would be the best solution to improve speed.

I assume this is possible but I can't tell for sure. Anyone more experienced here?

thanks
warp
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Do you mean sending from more than one digital out on one Arduini to more than one digital in's on another Arduino ?
« Last Edit: November 07, 2007, 07:00:18 am by MikMo » Logged

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no, basically i mean :

Arduino digital out (only one, say pin10) ------> Audio's interface digital Input (say M-Audio, MOTU, etc.)

am I too ambitious?? smiley
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Digital I/O is slower than serial.
115200 bytes/s too slow for you?
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"Digital I/O is slower than serial. "

haven't realised that. I's just wondering if you can build with Arduino something similar to Teabox from Electrotap http://www.electrotap.com/teabox/  but nevermind.

thanks
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Quote
no, basically i mean :

Arduino digital out (only one, say pin10) ------> Audio's interface digital Input (say M-Audio, MOTU, etc.)

am I too ambitious?? smiley

Sorry -  i didn't read your post properly i misread audio as arduino.

I never heard of that box, it looks cool.

I have made at small test just recently to see how fast i could read controls and send info to my PC. It is no problem to read 16 potentiometers every 10ms (on 2 4051 multiplexer IC's) and send the info to the PC . this wors ok at serial speed of 19200, so i think quite a lot can be done with the Arduino as it is.
« Last Edit: November 07, 2007, 03:46:02 pm by MikMo » Logged

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an audio interface's coaxial in is used for audio; the teabox reads sensor data and converts it to midi-- if that's all you're looking to do, this is totally possible with an arduino. check out todbot's midi tutorial in the playground.
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Daniel
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I think the OP is looking for something faster than midi; if you look at the Teabox page, they compare midi's max update rate (25ms) to the Teabox (.25ms).

Judging from that page, I would say that Arduino is not going to go as fast as the OP would like. They're probably using a 1.5MB+ USB connection on the Teabox, which is very fast compared to Arduino.
« Last Edit: November 08, 2007, 05:33:22 am by Daniel » Logged

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