display-by-IR

/*  Author: Mallory Benna
 *  Date: April 8, 2021
 *  Purpose: To change neopixel display with IR Remote
 *  References: IR - https://github.com/Arduino-IRremote/Arduino-IRremote/blob/master/examples/ReceiveDemo/ReceiveDemo.ino#L38
 *              
 */

#include <Adafruit_NeoPixel.h> //import NeoPixel library
#include <Arduino.h>
#include <IRremote.h> //Import IR Remote library


#define LED_PIN 8 //Pin connected to NeoPixel on Arduino
#define LED_COUNT 256 // Number of NeoPixels attached to Arduiino

// Define NeoPixel Object
// LED_COUNT = Number of pixels in NeoPixel strip
// LED_PIN   = Arduino pin number
// Pixel type flags: 
//    NEO_GRB = Pixels wired fro GRB bitstream 
//    NEO_KHZ800 = 800 KHz bitstream (most NeoPixel products with WS2812 LEDs)
Adafruit_NeoPixel neoPix(LED_COUNT, LED_PIN, NEO_GRB + NEO_KHZ800);


int IR_RECEIVE_PIN = 12; //Pin declaration for IR Remote

//Structure to hold mapped values from Excel 
struct MappedVals{
  int location;
  int R;
  int G;
  int B;
};


void setup() {
  Serial.begin(9600);
  
  neoPix.begin(); //Initialize the neoPixel
  neoPix.show();  //Turn all pixels 'off'

  /*
   * Start the receiver, enable feedback LED and take LED feedback pin from the internal boards definition
   */
  IrReceiver.begin(IR_RECEIVE_PIN, ENABLE_LED_FEEDBACK);


}

void loop() {
    /*
     * Check if received data is available and if yes, try to decode it.
     * Decoded result is in the IrReceiver.decodedIRData structure.
     *
     * E.g. command is in IrReceiver.decodedIRData.command
     * address is in command is in IrReceiver.decodedIRData.address
     * and up to 32 bit raw data in IrReceiver.decodedIRData.decodedRawData
     */
    if (IrReceiver.decode()) {

        // Print a short summary of received data
        IrReceiver.printIRResultShort(&Serial);
        if (IrReceiver.decodedIRData.protocol == UNKNOWN) {
            // We have an unknown protocol here, print more info
            IrReceiver.printIRResultRawFormatted(&Serial, true);
        }
        Serial.println();

        /*
         * !!!Important!!! Enable receiving of the next value,
         * since receiving has stopped after the end of the current received data packet.
         */
        IrReceiver.resume(); // Enable receiving of the next value

        /*
         * Finally, check the received data and perform actions according to the received command
         */
        if (IrReceiver.decodedIRData.command == 0x45) { //power button
            Serial.println("hello");
            X();
        } else if (IrReceiver.decodedIRData.command == 0x46) { //vol up
            Serial.println("second");
            onePix();
            
        }
    }

}


//Function to map Excel Image to NeoPixel Index from: https://www.youtube.com/watch?v=A_S3LAUQHwU
MappedVals mapLEDXY(int y, int x, int RED, int GREEN, int BLUE) {
  int RGBlocation = 0;
  
  if (y % 2 == 0) { //even column
    RGBlocation = x + y * 16;
  
  } else { //odd column
    RGBlocation = 15 - x + y * 16;
  }
  
  MappedVals valuesMap; //instantiate new struct

  //set struct values
  valuesMap.location = RGBlocation;
  valuesMap.R = RED;
  valuesMap.G = GREEN;
  valuesMap.B = BLUE;
  
  return valuesMap;
}

void X() {
   neoPix.clear();
   MappedVals mappedValuesArr[] = {  mapLEDXY(0, 0, 0, 0, 10), mapLEDXY(0, 15, 0, 0, 10), mapLEDXY(1, 1, 0, 0, 10), 
                              mapLEDXY(1, 14, 0, 0, 10), mapLEDXY(2, 2, 0, 0, 10), mapLEDXY(2, 13, 0, 0, 10), 
                              mapLEDXY(3, 3, 0, 0, 10), mapLEDXY(3, 12, 0, 0, 10), mapLEDXY(4, 4, 0, 0, 10), 
                              mapLEDXY(4, 11, 0, 0, 10), mapLEDXY(5, 5, 0, 0, 10), mapLEDXY(5, 10, 0, 0, 10), 
                              mapLEDXY(6, 6, 0, 0, 10), mapLEDXY(6, 9, 0, 0, 10), mapLEDXY(7, 7, 0, 0, 10), 
                              mapLEDXY(7, 8, 0, 0, 10), mapLEDXY(8, 7, 0, 0, 10), mapLEDXY(8, 8, 0, 0, 10), 
                              mapLEDXY(9, 6, 0, 0, 10), mapLEDXY(9, 9, 0, 0, 10), mapLEDXY(10, 5, 0, 0, 10), 
                              mapLEDXY(10, 10, 0, 0, 10), mapLEDXY(11, 4, 0, 0, 10), mapLEDXY(11, 11, 0, 0, 10), 
                              mapLEDXY(12, 3, 0, 0, 10), mapLEDXY(12, 12, 0, 0, 10), mapLEDXY(13, 2, 0, 0, 10), 
                              mapLEDXY(13, 13, 0, 0, 10), mapLEDXY(14, 1, 0, 0, 10), mapLEDXY(14, 14, 0, 0, 10), 
                              mapLEDXY(15, 0, 0, 0, 10), mapLEDXY(15, 15, 0, 0, 10)  };

   for(int i=0; i < 32; i++){
      neoPix.setPixelColor(mappedValuesArr[i].location,mappedValuesArr[i].R,mappedValuesArr[i].G,mappedValuesArr[i].B);
      neoPix.show();
   }

   delay(10);
}



void onePix() {
   neoPix.clear();
   neoPix.setPixelColor(11,255,0,255);
   neoPix.show();

   delay(10);
}