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LED Effect - push O...
 
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LED Effect - push ON and OFF


 Hans
(@hans)
Noble Member Admin
Joined: 8 years ago
Posts: 2018
Topic starter  

From one of the comments under one of the LED Effect articles.


 

what is matter with this cod 

I want to do the strip show wen I push the Butten an then end the strip show 

who can help me:(((

 

#include “FastLED.h”
#define NUM_LEDS 11
CRGB leds[NUM_LEDS];
#define PIN D9
#define buttonPin D2

int buttonPushCounter = 0; // counter for the number of button presses
int buttonState = 0; // current state of the button
int lastButtonState = 0; // previous state of the button

void setup()
{
FastLED.addLeds<WS2811, PIN, GRB>(leds, NUM_LEDS).setCorrection( TypicalLEDStrip );
pinMode(buttonPin, INPUT);
}

void loop() {
buttonState = digitalRead(buttonPin);
 // compare the buttonState to its previous state
if (buttonState != lastButtonState) {
  // if the state has changed, increment the counter
  if (buttonState == HIGH) {
    // if the current state is HIGH then the button went from off to on:
    buttonPushCounter++;
    Serial.println(“on”);
    Serial.print(“number of button pushes: “);
    Serial.println(buttonPushCounter);
  } else {
    // if the current state is LOW then the button went from on to off:
    Serial.println(“off”);
  }
  // Delay a little bit to avoid bouncing
  delay(50);
}
// save the current state as the last state, for next time through the loop
lastButtonState = buttonState;
}

  colorWipe(0xff,0x00,0x00, 50);
colorWipe(0x00,0x00,0x00, 50);
 }

void colorWipe(byte red, byte green, byte blue, int SpeedDelay) {
for(int i=NUM_LEDS; i>=0; i– ) {
  if (buttonPushCounter % 4 == 0){
    setPixel(i, red, green, blue);
    showStrip();
    delay(SpeedDelay);
}
}

void showStrip() {
#ifdef ADAFRUIT_NEOPIXEL_H
 // NeoPixel
 strip.show();
#endif
#ifndef ADAFRUIT_NEOPIXEL_H
 // FastLED
 FastLED.show();
#endif
}

void setPixel(int Pixel, byte red, byte green, byte blue) {
#ifdef ADAFRUIT_NEOPIXEL_H
 // NeoPixel
 strip.setPixelColor(Pixel, strip.Color(red, green, blue));
#endif
#ifndef ADAFRUIT_NEOPIXEL_H
 // FastLED
 leds[Pixel].r = red;
 leds[Pixel].g = green;
 leds[Pixel].b = blue;
#endif
}

 


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 Hans
(@hans)
Noble Member Admin
Joined: 8 years ago
Posts: 2018
Topic starter  

Since you're using FastLED, I'd focus on that an remove irrelevant code from AdaFruit (like setPixel and shwoStrip).
This will shorten the code a little.

I've modified your code a little but I have not been able to test the code (don't have my Arduino near me).

Hope this helps

#include “FastLED.h”
#define NUM_LEDS 11
CRGB leds[NUM_LEDS];
#define PIN D9
#define buttonPin D2

int buttonPushCounter = 0; // counter for the number of button presses
bool effectON = false; // current state of the button

void setup()
{
  FastLED.addLeds<ws2811, pin,="" grb="">(leds, NUM_LEDS).setCorrection( TypicalLEDStrip );
  pinMode(buttonPin, INPUT);
}

void loop() {
  bool buttonPressed = ( digitalRead(buttonPin) == HIGH );
  
  // Button pressed 
  if(ButtonPressed) {
    
    // flip effect ON/OFF    
    effectON = !effectON; // flip the effect
  
    // output the effect of pressing the button  
    if(effectON) {
      Serial.println("switching ON");
    } else {
      Serial.println("switching OFF");
    }
    
    // display button pushes
    buttonPushCounter++;
    Serial.print("number of button pushes: ");
    Serial.println(buttonPushCounter);
  }
    
  // Delay a little bit to avoid bouncing
  delay(50);
  
  // if Effect should be shown: do it now
  if(effectON) {
    colorWipe(0xff,0x00,0x00, 50);
    colorWipe(0x00,0x00,0x00, 50); // not sure how effective a black swipe would be?
  }
}

void colorWipe(byte red, byte green, byte blue, int SpeedDelay) {
  for(int i=NUM_LEDS; i>=0; i– ) {
    if (buttonPushCounter % 4 == 0){
      leds[i] = CRGB(red, green, blue);
      FastLED.show();
      delay(SpeedDelay);
  }
}</ws2811,>

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