Reversing Sensor Data


    Sep 21 2013 | 9:50 pm
    I want to use incoming pot data to decrease gain on one channel and increase gain on the other. How would I do this? I tried an inverse scale, but that didn't seem to work. Any thoughts?

    • Sep 21 2013 | 10:15 pm
      M4L.bal1~
    • Sep 21 2013 | 10:58 pm
      Wetterberg:
      I'm not sure how this would work. I'm trying to take serial data received from a potentiometer.
    • Sep 21 2013 | 11:15 pm
      could you show some of your data then? Otherwise we'll just be guessing, really.
    • Sep 22 2013 | 12:13 am
      The data that is feeding in is a number in a range from 0 - 1023 which is converted from voltage. I run the data into Arduino2Max through an Analog input then out to my gain sliders. Hope that helps.
    • Sep 22 2013 | 12:44 am
      if you just want a simple linear relationship use "expr 1023 - $i1"
    • Sep 22 2013 | 2:00 am
    • Sep 22 2013 | 2:12 am
      [!- 1023] is faster than both scale and expr.
    • Sep 22 2013 | 5:40 am
      Metamax:
      Just used the (!-) object and it worked great. I ended up scaling the data numbers down to the max number I set for my various gains so the action went smoother from my perspective. Seemed to work great, thank you.
    • Sep 22 2013 | 8:32 am
      Note you'll have a dip in volume in the middle; that's the reason why I recommended m4l.bal1~ - it does a proper mix between the two.
      I still think it's the best approach, hehe.