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 Robotics / RCX / NQC / 1277
    How to read the touch sensors on the Scout in NQC? —Chris Barker
   All, I'm feeling pretty stupid right about now. I've read the NQC docs, looked in the newsgroups, books, etc, but I can't seem to figure out how to read the touch sensors on my Scout. I want to implement a bumper checking task but no matter how I (...) (23 years ago, 16-Dec-01, to lugnet.robotics.rcx.nqc, lugnet.robotics.scout)
   
        Re: How to read the touch sensors on the Scout in NQC? —Chris Barker
     I've sort of solved my problem, but not in a way which really makes total sense. Both of the below fragments work as expectd: #1 if ((SensorValueRaw(1) & SensorValueRaw(0)) != 255) #2 if ((SensorValueRaw(1) != 255) || (SensorValueRaw(0) != 255)) (...) (23 years ago, 16-Dec-01, to lugnet.robotics.rcx.nqc, lugnet.robotics.scout)
    
         Re: How to read the touch sensors on the Scout in NQC? —Juergen Stuber
     Hi Chris, (...) this is a bit crazy, unless your sensor value is a bit pattern. (...) This is sensible, but are you sure it's ok to use equality and not inequalities like SensorValueRaw(1) < 240? (...) but it's equivalent, also in C, where & is (...) (23 years ago, 16-Dec-01, to lugnet.robotics.rcx.nqc, lugnet.robotics.scout)
    
         Re: How to read the touch sensors on the Scout in NQC? —Chris Barker
      (...) That is what I thought, but it will determine if the touch sensor is pressed. (...) Dunno, I'll try. Then again, if !=255 works... (...) If it were not for Perl I'd never write a line of code ^_^ (23 years ago, 17-Dec-01, to lugnet.robotics.rcx.nqc, lugnet.robotics.scout)
   
        Re: How to read the touch sensors on the Scout in NQC? —Dave Baum
   This program turns on motor A and leaves it running until a touch sensor attached to input 1 is pressed, then it turns off the motor and plays a sound: task main() { On(OUT_A); until(SENSOR_1 == 1); Off(OUT_A); PlaySound(SOUND_UP); } Dave (...) (23 years ago, 16-Dec-01, to lugnet.robotics.rcx.nqc, lugnet.robotics.scout)
   
        Re: How to read the touch sensors on the Scout in NQC? —Dean Husby
   I was using my scout this past weekend as a coinbox detector to launch a mono rail. The touch sensors work exactly as Dave suggests. You can also just do the following: until(SENSOR_1); Waits until it's touched. until(!SENSOR_1); Waits until the (...) (23 years ago, 17-Dec-01, to lugnet.robotics.rcx.nqc, lugnet.robotics.scout)
 

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