Arduino and MaxMSP troubleshooting

Forum 2005-2010 (read only) Hardware Troubleshooting
1

Hello everyone! Im having trouble trying to communicate Arduino and MaxMSP.
I'm following the instructions I found on the internet. First I upload the StandardFirmata code that comes in the Arduino software examples, then I opened the Maxuino patch and when I try to get info from a connected potentiometer the patch shows me values after I rotate almost the the 50% of the potentiometer so the first 90 degrees of rotation don't show any number changing in the Maxuino patch, also when I finally get number changing it makes a drastical jump from 0.68 to 0.96 and it never reach 1 :-[.
I already tried with a 10k, 20k and 50k potentiometer.
Any ideas of why this is happening?? :-?

Thanks for your time!

2

I tried on a pc and it works perfect :-/

Im doing something wrong on my mac ....
any idea?

3

here is the maxpatch and the instructions.

Hope anyone can try and tell me if they had any kind of problem with it :wink:

4

I fixed it I would like to share what the problem was so anyone can find this and hope it'll be helpful!

I was having trouble with an earlier buggy version of Firmata that shipped with Arduino IDE v17. please try instead to use this version:

http://at.or.at/hans/pd/Firmata-2.1beta7.zip

you will need to replace the file in your arduino hardware library with this one. this will be fixed with arduino v18.

Thanks a lot to Christopher Coleman who helped me with this trouble and guide me to fix it.

Peace