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FMA sensor on 2.0 code - need reverse

Posted by Robert Krogh (hooks) on May 2, 2009 at 5:39am
I have one problem with the pre test- I installed the FMA sensor just like instruction. But when I point the nose down the pitch also going down.. so I need to reverse the settings. I'm using code 2.0 and not the new 2.1How to do?Please don't tell me to reverse the FMA sensor.Also having problem making the FMA sensor working first time, I can see other having the same problem.
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Tags: fma, reverse, sensor
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Replies

  • Bryan Cuervo May 2, 2009 at 12:30pm
    Hooks,
    In the 2.0 code, try this:
    Reverse IR sensor-old code-return constrain((int)(((infrared0-511)*90)/max_ir),-60,60);
    new code-return -constrain((int)(((infrared0-511)*90)/max_ir),-60,60);
    Reverse IR sensor pitch-old code-return -constrain((int)(((infrared1-511)*90)/max_ir),-60,60);
    new code-return constrain((int)(((infrared1-511)*90)/max_ir),-60,60);
    Just reverse the sign in front of "constrain".
  • Jonas May 2, 2009 at 11:36am
    Hello Hooks,

    I was having a problem to with the settings in the new code. But Chris explaned what you must change is this topic:
    http://www.diydrones.com/profiles/blogs/settings-you-can-change-in-the

    Says whether a Z sensor is present or not. [Note: autopilot will not properly calibrate without one]
    #define SENSOR_Z 1

    [Says whether the FMA sensor is pointed forward or backwards]
    #define REVERSE_X_SENSOR 1 //1 = cable behind, 0 = cable front

    [If your servos are reversed set these to 1 instead]
    #define REVERSE_ROLL 0 //To reverse servo roll
    #define REVERSE_PITCH 0 //To reverse servo pitch

    remember that 2.1 needs a Z sensor to work well!!
  • Moderator
    Robert Krogh (hooks) May 2, 2009 at 11:12am
    I didn't post that I use 2.0 code..
  • 3D Robotics
    Chris Anderson May 2, 2009 at 11:01am
    You need to reverse your elevator servo. The line of code is in the first tab (set pitch to 1):

    #define REVERSE_ROLL 0 //To reverse servo roll
    #define REVERSE_PITCH 0 //To reverse servo pitch
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