Particle Internet Button Police Lights

police-button.cpp

// 1. CREATE A NEW APP at https://build.particle.io
// 2. PASTE THIS CODE IN and SAVE
// 3. GO TO LIBRARIES, OPEN the NEOPIXEL library
// 4. Click INLUCDE IN APP
// 5. SELECT THE APP YOU PASTED/SAVED THIS CODE IN
// 6. Click ADD TO THIS APP
// 7. COMPILE and FLASH to a PARTICLE INTERNET BUTTON
// 8. SHINE IT DOWN ON SOMETHING AND BE AMAZED :)
// 9. WOOP WOOP!!, THAT'S THE SOUND OF THE POLICE!
//
// This #include statement was automatically added by the Particle IDE.
#include "neopixel/neopixel.h"

//----------------- LED Handling ------------------------
#define PIXEL_COUNT 11
#define PIXEL_PIN D3
#define PIXEL_TYPE WS2812B

Adafruit_NeoPixel ring = Adafruit_NeoPixel(PIXEL_COUNT, PIXEL_PIN, PIXEL_TYPE);

void allLedsOn(uint8_t r, uint8_t g, uint8_t b){
    for(int i = 0; i<PIXEL_COUNT; i++){
        ring.setPixelColor(i, ring.Color(r, g, b));
    }
    ring.show();
}

void setup() {
    Serial.begin(9600);
    ring.begin();
    ring.setPixelColor(0, ring.Color(0, 100, 255));
    ring.setPixelColor(0, ring.Color(255, 0, 0));
    //ring.setBrightness(10);
    ring.show();
    delay(40);
}

void loop() {
    static uint8_t head = 1;
    static uint8_t tail = 0;
    static uint8_t head2 = 7;
    static uint8_t tail2 = 6;
    static int bright = 255;
    static bool dir = 0;
    static char output[255];
    static uint32_t newcolor;
    static uint32_t oldcolor;
    
    oldcolor = ring.getPixelColor(tail);
    uint8_t r = (uint8_t)(oldcolor >> 16);
    uint8_t g = (uint8_t)(oldcolor >>  8);
    uint8_t b = (uint8_t)oldcolor;
    
    ring.setPixelColor(head, ring.Color(0, 100, 255));
    ring.setPixelColor(tail, ring.Color(0, 0, 0));
    ring.setPixelColor(head2, ring.Color(255, 0, 0));
    ring.setPixelColor(tail2, ring.Color(0, 0, 0));
    
    newcolor = ring.getPixelColor(head);
    uint8_t r1 = (uint8_t)(newcolor >> 16);
    uint8_t g1 = (uint8_t)(newcolor >>  8);
    uint8_t b1 = (uint8_t)newcolor;
/*    
    sprintf(output, "Set Color: %3d %3d %3d - Get Color: %3d %3d %3d - Bright: %d", r, g, b, r1, g1, b1, ring.getBrightness());
    Serial.println(output);
    if (dir == 0) {
        ring.setBrightness(bright--);
        if (bright == 0) {
            dir = 1;
        }
    }
    else {
        ring.setBrightness(bright++);
        if (bright == 255) {
            dir = 0;
        }
    }
*/
    ring.show();
    if(++head == 11) head = 0;
    if(++tail == 11) tail = 0;
    if(++head2 == 11) head2 = 0;
    if(++tail2 == 11) tail2 = 0;
    delay(40);
}