Triggering led flash after x seconds of active pushbutton

Projects Programming
6

Well, you could try it this way..

#include <mechButton.h>
#include <blinker.h>

#define BUTTON_PIN   11
#define LED_PIN      13
#define BLINK_MS     500.0
#define HOLD_MS      1000

mechButton  theButton(BUTTON_PIN);                    // A debounced button object. (Hook button between pin & ground)
blinker     theBlinker(LED_PIN,BLINK_MS/2,BLINK_MS);  // A fire and forget blinker object.
timeObj     pushTimer(HOLD_MS);                       // A timer object

void setup(void) {

   theBlinker.setOnOff(false);            // Make sure the blinker is acutaly off.
   theButton.setCallback(btnClicked);     // Set the callback for the button.
}

// This gets called when the button is clicked.
void btnClicked(void) {

   if (!theButton.trueFalse()) {    // If it has been grounded..
      pushTimer.start();            // Start the timer.
      theBlinker.setPercent(100);   // Set the blinker to full on.
      theBlinker.setOnOff(true);    // Fire it up.
   } else {                         // Else, button released..
      theBlinker.setOnOff(false);   // SHut off the blinker.
   }
}


void loop(void) {

   idle();                             // idle runs the stuff in the background (button & binker)
   if (!theButton.trueFalse()) {       // If the button is currently pressed..
      if (pushTimer.ding()) {          // If the timer has expired..
         theBlinker.setPercent(50);    // Start blinking!
      }
   }
}

You'll need to install LC_baseTools from the library manager to compile this.

Good luck & have fun!

-jim lee

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