Adding double click to my program

Projects Programming
1

Hey everyone, I'm still new to Arduino coding. So far I've been able to put this together, it's a code to control a LED strip. there's a button for colour (BTN), brightness (BTN2) and patterns (BTN3). Wanted to add a double press to go to the previous colour (BTN) and pattern (BTN3). Just wondering if anyone has any suggestions or a good tutorial to look at. Thanks

#include <FastLED.h>
#include <OneButton.h>

#define LED_PIN 2
#define BTN_PIN 3
#define BTN2_PIN 4
#define BTN3_PIN 5
#define NUM_LEDS 72

CRGB leds[NUM_LEDS];
uint8_t patternCounter = 0;
uint8_t patternCounter2 = 0;
uint8_t patternCounter3 = 0;
OneButton btn = OneButton(BTN_PIN, true, true);
OneButton btn2 = OneButton(BTN2_PIN, true, true);
OneButton btn3 = OneButton(BTN3_PIN, true, true);

int a = 4;
int b = 30;
int c = 40;
int d = 40;
int e = 40;
int f = c;

int x = 0;
int y = 0;
int z = 100;

void setup() {
  FastLED.addLeds<WS2812B, LED_PIN, GRB>(leds, NUM_LEDS);

  btn.attachClick(nextPattern);
  btn2.attachClick(nextPattern2);
  btn3.attachClick(nextPattern3);
}

void loop() {
 switch (patternCounter) {
}
 switch (patternCounter2) {
}
 switch (patternCounter3) {
}

fadeToBlackBy(leds, NUM_LEDS, a); 
  
  FastLED.show();
  btn.tick();
  btn2.tick();
  btn3.tick();
}

void nextPattern() {
  patternCounter = (patternCounter + 1) % 21;
}

void nextPattern2() {
  patternCounter2 = (patternCounter2 + 1) % 3;
}

void nextPattern3() {
  patternCounter3 = (patternCounter3 + 1) % 16;
}
//colour

//Brightness

//Pattern
2
  • Example:
myButton.attachDoubleClick(myButtonDoubleClick);

. . . 

void myButtonDoubleClick() 
{
   //do something
}
1 Like
3

There must be dozens of button libraries that can do dbl click, or you could try writing your own.

4

Yes - the library he is already using supports double click detection. As @LarryD indicated it’s just about registering the callback for it and providing that callback.

5

OOPS, didn't notice that.

6

Also depending on the platform OP might want to read about the deferred initialization

7

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