Chief Delphi - making a trigger a toggle

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team877

01-02-2007 20:55

making a trigger a toggle

how can i set my relay on my controller to just turn a pwm port to on or off so that i dont have to hold down the trigger?

Nathan

01-02-2007 21:04

Re: making a trigger a toggle

Hi, I'll post below what I'm using right now... As a sidenote, I have two variables you'll need. One is name "port1_trigger" and the other "Lift."

Code:

void Lift_Control ( void )

{

      if ( port1_trigger == 1 ) // If the trigger was pressed last.

      {

            Last_Button_Pressed = 1 ; // Then the trigger was pressed last.

      }

      if ( port1_thumb == 1 )

      { // If the thumb button was pressed last.

            Last_Button_Pressed = 2 ; // Then the thumb button was pressed last.

      }

      if ( Last_Button_Pressed == 1 ) // If the last button pressed was the trigger, then....

      {

            Lift = 1  ; // Lift the platform!

      }

      else

      {

            Lift = 0 ; // Don't lift the platform.

      }

      SetRelay ( 1 , Lift , -1 ) ; // The spike relay will have the value of the variable "Lift."

}

I hope that helps :)
-Nathan

tdlrali

01-02-2007 22:44

Re: making a trigger a toggle

Code:

static char p1_trig_state = 1;

static unsigned char p1_trig_pressed = 0;



if(p1_sw_trig && !p1_trig_pressed) {

    p1_trig_state *= -1;

    p1_trig_pressed = 1;

}

else if(!p1_sw_trig)

    p1_trig_pressed = 0;



if(p1_trig_state==1)

    pwm01 = 255;

else

    pwm01 = 127;

with any toggle code, if your output switches state rapidly a few times after your input is pressed, you might need to add a little delay to debounce the input

Racer26

02-02-2007 13:26

Re: making a trigger a toggle

well, if you're trying to turn a motor/solenoid/whatever else on/off only, without variable speed, i would use a spike. the code is simple.

Code:



static char trigold = 0; // Define this with global scope



if(p1_sw_trig == 1 && trigold == 0){

       relay1_fwd = !relay1_fwd;

}



trigold = p1_sw_trig;

That should toggle relay1's fwd direction each time there is a 0->1 transition on the port 1 trigger.

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