I'm currently building something with an arduino and pd. Arduino vets- help is appreciated!

So, I'm using [comport] and [convert.ascii2pd] to read inputs from an arduino. I'm not using pduino, firmata, etc. because I'm multiplexing the input.

I have a multiplexer read 8 potentiometers going into 1 analog input on my arduino. So I rapidly read all 8 of the inputs in a loop and print them out over serial.

My problem is I don't know how to take this stream and put it to an array properly. Out of [comport] to [convert.ascii2pd] to printing the results looks like this:

print: 790
print: CR
print: LF
print: 0
print: CR
print: LF
print: 0
print: CR
print: LF
print: 0
print: CR
print: LF
print: 703
print: CR
print: LF
print: 649
print: CR
print: LF
print: 547
print: CR
print: LF
END: bang

I'm seperating the values with special characters, which can be weeded out with [route] if need be. I have the end of each 8 input read banging.

But it's late and my head is reeling. Not sure where to start next in terms of putting these properly in a list or an array. The end goal being that I have 8 potentiometers that can control things in pure data. Any way to make sense of this input?

The things we do for more inputs!

Following up. Just needed a clear mind and a cup of coffee.

Instead of polling the multiplexer and separating the inputs with line breaks, I separated them with spaces and capped them off with a line break. This allowed me to dump a string of numbers separated by spaces into a

, which I could then [unpack] into 8 number atoms.

To sum it up: Comport, to ascii conversion, to a route that gets rid of the line break symbol, to a list, to an unpack, to 8 atoms.

I'm excited about this because it's pretty simple, and should scale to 64 inputs if I decide to double up on my 4051 multiplexer. Not sure if this is the best setup for say, 8 (or 64) piezos for a drum pad. Haven't tested the latency on something like that yet. But it'll be fine for a bunch of knobs and faders!

Hopefully this will help someone in the future. If there's a better way to do this, let me know!

Hi, i tried your method as i need to parse serial message from arduino that look like:

-0.023801 0.002523 0.999714

But it isn,t working...
I need to use these 3 numbers to control 3 different object
Can you attach the patch you used??
tx

Sorry to be off topic but can I up load a pd file to a arduino board

No, Arduino uses its own Processing-based language. But you can communicate with it using Pduino.

http://www.arduino.cc/playground/Interfacing/PD

basically i read multiple sensor and arduino calculate the output so i don't need to send analog/digial input from arduino to pd, just the processed data through serial communication, just i have problems using the comport object...

I have been using Processing a bit I think there should be a way if none o will I wish