Hi there, i have modified code from Adafruit NeoPixel Library with the example buttoncycler and EEPROM. My goal is to save the switch case after power off. I achieved that, the issue is that colorwipe doesn’t start at start up and i have to press the button to start and i want to start from the beginning after power on.
I’ve done several things to get colorwipe starting, but I failed, any help will be great help for my project.
Simple demonstration on using an input device to trigger changes on your
// NeoPixels. Wire a momentary push button to connect from ground to a
// digital IO pin. When the button is pressed it will change to a new pixel
// animation. Initial state has all pixels off -- press the button once to
// start the first animation. As written, the button does not interrupt an
// animation in-progress, it works only when idle.
#include <SimpleRotary.h>
#include <EEPROM.h>
#include <Adafruit_NeoPixel.h>
#ifdef __AVR__
#endif
// Digital IO pin connected to the button. This will be driven with a
// pull-up resistor so the switch pulls the pin to ground momentarily.
// On a high -> low transition the button press logic will execute.
#define BUTTON_PIN 6
#define PIXEL_PIN 5 // Digital IO pin connected to the NeoPixels
#define PIXEL_COUNT 46 // Number of NeoPixels
SimpleRotary rotary(3,2,9);
int counter = 0;
int brightness = 22;
// Declare our NeoPixel strip object:
Adafruit_NeoPixel strip(PIXEL_COUNT, PIXEL_PIN, NEO_GRB + NEO_KHZ800);
// Argument 1 = Number of pixels in NeoPixel strip
// Argument 2 = Arduino pin number (most are valid)
// Argument 3 = Pixel type flags, add together as needed:
// NEO_KHZ800 800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)
// NEO_KHZ400 400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers)
// NEO_GRB Pixels are wired for GRB bitstream (most NeoPixel products)
// NEO_RGB Pixels are wired for RGB bitstream (v1 FLORA pixels, not v2)
// NEO_RGBW Pixels are wired for RGBW bitstream (NeoPixel RGBW products)
boolean oldState =HIGH;
int mode = 0; // Currently-active animation mode, 0-9
void setup() {
pinMode(BUTTON_PIN, INPUT_PULLUP);
Serial.begin(9600);
strip.begin(); // Initialize NeoPixel strip object (REQUIRED)
strip.setBrightness(brightness);
EEPROM.get(0, mode);
}
void loop() {
byte i; // 0 = not turning, 1 = CW, 2 = CCW
i = rotary.rotate();
if ( i == 1 ) {
delay(20);
brightness +=6;
Serial.print("CW: ");
Serial.println(brightness);
}
if ( i == 2 ) {
delay(20);
brightness -=6;
Serial.print("CCW: ");
Serial.println(brightness);
}
if(brightness > 244){
brightness = 244;
}
if(brightness < 0){
brightness = 4;
}
strip.setBrightness(brightness);
strip.show();
// Get current button state.
boolean newState = digitalRead(BUTTON_PIN);
// Check if state changed from high to low (button press).
if((newState == LOW) && (oldState == HIGH)) {
// Short delay to debounce button.
delay(20);
// Check if button is still low after debounce.
newState = digitalRead(BUTTON_PIN);
if(newState == LOW) { // Yes, still low
if(++mode > 11) mode = 0;
EEPROM.put(0, mode);
// Advance to next mode, wrap around after #8
switch(mode) { // Start the new animation...
case 0:
colorWipe(strip.Color( 215, 110, 20), 20); // Bronze BMW
break;
case 1:
colorWipe(strip.Color(147, 26, 1), 20); // Orange
break;
case 2:
colorWipe(strip.Color( 254, 0, 0), 20); // Red
break;
case 3:
colorWipe(strip.Color( 255, 255, 0), 20); // Yellow
break;
case 4:
colorWipe(strip.Color( 66, 255, 0), 20); // Yellow-green
break;
case 5:
colorWipe(strip.Color( 0, 255, 0), 20); // Green
break;
case 6:
colorWipe(strip.Color( 0, 255, 255), 20); // Cyan
break;
case 7:
colorWipe(strip.Color( 21, 163, 199), 20); // Cyan-Blue
break;
case 8:
colorWipe(strip.Color( 0, 0, 255), 20); // Blue
break;
case 9:
colorWipe(strip.Color( 89, 0, 255), 20); // Pink
break;
case 10:
colorWipe(strip.Color( 255, 0, 255), 20); // Magenta
break;
case 11:
colorWipe(strip.Color( 229, 160, 29), 20); // Bronze
break;
}
}
}
// Set the last-read button state to the old state.
oldState = newState;
}
// Fill strip pixels one after another with a color. Strip is NOT cleared
// first; anything there will be covered pixel by pixel. Pass in color
// (as a single 'packed' 32-bit value, which you can get by calling
// strip.Color(red, green, blue) as shown in the loop() function above),
// and a delay time (in milliseconds) between pixels.
void colorWipe(uint32_t color, int wait) {
for(int i=0; i<strip.numPixels(); i++) { // For each pixel in strip...
strip.setPixelColor(i, color); // Set pixel's color (in RAM)
strip.show(); // Update strip to match
delay(wait); // Pause for a moment
}
}