Question regarding Spin IF statement with Pushbutton

Comments

• David Betz Posts: 14,530

  2013-04-20 18:54 edited 2013-04-20 18:54

  NWCCTV wrote: »

  I am trying to start a couple servos when a button is pushed. I am not sure what is wrong with my code but I am sure my PB circuit is correct. The code compiles just fine but the servos do not turn.

  OBJ
     servo :     "PropBOE Servos"                        'Servo control object  
  CON
    _clkmode        = xtal1 + pll16x           ' Feedback and PLL multiplier
    _xinfreq        = 5_000_000                ' External oscillator = 5 MHz
    PushButton      = 3                        ' Pushbutton Input Pin
  PUB main                         ' Main method
   
     'repeat
        if PushButton == 1    ' wait for pushbutton to be pushed  
         servo.Set(15, 200)  ' Start Servo on pin 15 Counterclockwise
         servo.Set(14,-200)  ' Start Servo on pin 14 Clockwise
        else
         servo.stop          ' Stop Servo on pin 15
         servo.stop          ' Stop Servo on pin 14
  

  Why do you have the repeat statement commented out? The body of your loop will only run once.
• NWCCTV Posts: 3,629

  2013-04-20 19:02 edited 2013-04-20 19:02

  I just did that to see if I could get it to work, which I could not.
• kuroneko Posts: 3,623

  2013-04-20 19:11 edited 2013-04-20 19:11

  NWCCTV wrote: »

  I just did that to see if I could get it to work, which I could not.

  Shouldn't that read:

  if ina[PushButton][COLOR="#D3D3D3"]{== 1}[/COLOR]
  
• NWCCTV Posts: 3,629

  2013-04-20 19:33 edited 2013-04-20 19:33

  I just did that to see if I could get it to work, which I could not.
• NWCCTV Posts: 3,629

  2013-04-20 19:39 edited 2013-04-20 19:39

  if ina[PushButton]{== 1}

  This does not work either.
• NWCCTV Posts: 3,629

  2013-04-20 19:47 edited 2013-04-20 19:47

  I think this may be a resistor issue. What value resistor should I be using between the pushbutton and the PropBOE pin 3?
• kuroneko Posts: 3,623

  2013-04-20 20:01 edited 2013-04-20 20:01

  Does your servo object (source?) need some form of initialisation (start/init)?
• NWCCTV Posts: 3,629

  2013-04-20 20:15 edited 2013-04-20 20:15

  No. If I remove the IF statement and compile the servos turn as they are suppose to. It is after I put the IF statement in that it stops working. I have my pushbutton circuit wired exactly like the diagram here. I am using the same resistors that it says to use. Am I using the wrong circuit for this application or what? EDIT: Problem Solved. It was an indentation issue. I can not believe how sensitive Spin is to indentation. Thanks for the help.