Multiple Analog Values from Arduino to Pd/MAX

Projects Programming
1

Hi All,

I’m new to arduino and I’ve got quite an optimistic project on the go that uses 12 x proximity sensors at once (sharp GP2Y0A02YK0F) for use with MAX MSP. I went and bought an arduino mega2650 as it has 16 analog inputs.

After following this tutorial: http://colinzyskowski.com/?page_id=503 it was all working fine with 3 inputs, but when I try to add a 4th there doesn’t seem to be any data coming in. I’m thinking this might be because there’s a limit to how much data can be sent using Serial.write, however on the tutorial he states if you just add int val4; analogRead(3); val4 = map(val4, 0, 1023, 301, 400); and Serial.write(val4); to the Arduino code I should be able split/parse the data back in Max as I have done with the previous 3 sensors.

Is there a better way to get 12 streams of data from the Arduino into Max? Has anyone encountered any similar issues?

Thanks in advance!

Jack

2

Is there a better way to get 12 streams of data from the Arduino into Max?

Better than what?

(Hint: this is the Programming section of the forum. Don't forget the code tags)

3

Post your code, let's see how you're reading the analog inputs and passing the data along.
The output just sits at some DC-ish level, yes?

So do 12 reads, stick them in an unsigned int array, and send the data out.