Wireless Scoreboard Display for Drone Soccer or Other Games

#include <RCSwitch.h>
#include <millisDelay.h>
#include <FastLED.h>

//FASTLED
#define SECT_per_STRIP      2   // number of sections to divide the LED strip into
#define DIGITS_per_SECT     2   // number of digits that each section of LEDs will display 
#define SEG_per_DIGIT       7   // number of segments to form any digit from 0 to 9
#define LED_per_SEG         7   // number of LED pixels in one segment of a digit 
#define LED_PIN             7   // GPIO pin used by LED strip
#define BRIGHTNESS          125 // global brightness per colour (max 255)
#define FRAMES_PER_SECOND   60
#define ARRAY_SIZE(A) (sizeof(A) / sizeof((A)[0]))


// Change these values to follow the actual transmitters' signal values from goalpost remotes and control cpnsole buttons into these constants accordingly
const int RED_remote_A_ON = 11111111;   // signal from goalpost A remote (red team)
const int BLUE_remote_B_ON = 22222222;  // signal from goalpost B remote (blue team)
const int SWAP_AB_switch = 33333333;    // signal from SWAP switch when slide from right to left
const int SWAP_BA_switch = 44444444;    // signal from SWAP switch when slide from left to right
const int MINUS_button = 55555555;      // signal from MINUS button
const int MINUS_1_button = 66666666;    // signal from -1 button 
const int RESET_button = 77777777;      // signal from RESET button
const int MODE_button = 88888888;       // signal from MODE button


// total number of LEDs in the LED strip attached
const int totalNumLEDs = LED_per_SEG * SEG_per_DIGIT * DIGITS_per_SECT * SECT_per_STRIP;

// the number of LEDs in one section of the LED strip. Used when need to get first LED position of the next section of the strip.
const int sect_offset = totalNumLEDs/SECT_per_STRIP; 

// the number of LEDs in one digit. Used when need to get first LED position of the next digit.
const int digit_offset = LED_per_SEG * SEG_per_DIGIT;

// Define the array of leds in FastLED
CRGB led[totalNumLEDs];

// set segments on/off state for each digit from 0~9
const int digit[][SEG_per_DIGIT]= { 
{1,1,1,0,1,1,1}, // digit 0
{1,0,0,0,1,0,0}, // digit 1
{1,1,0,1,0,1,1}, // digit 2
{1,1,0,1,1,1,0}, // digit 3
{1,0,1,1,1,0,0}, // dogot 4
{0,1,1,1,1,1,0}, // digit 5
{0,1,1,1,1,1,1}, // digit 6
{1,1,0,0,1,0,0}, // digit 7
{1,1,1,1,1,1,1}, // digit 8
{1,1,1,1,1,0,0}  // digit 9
};

const int letter[][SEG_per_DIGIT]= { // alphabet to show when swapping sections
{1,1,0,1,1,1,1}, // letter a
{0,0,1,1,1,1,1}, // letter b
};

// for toggling scores to diplay between the separate sections of LED strip
int sectPos[] = {0,1}; // e.g. 0 is for first section on strip.
// for storing current section positions to check if need to swap sections when swap signal is received
int currPos[] = {}; // checked in loop1 when show_swapSect is true
// for storing score values to display
int scoreCount[] = {0,0};
// minus score state, 0=off, 1 for score[0], 2 for score[1]
int minusToggle = 0;


bool patternPlay = false; // toggles pattern playing mode
bool set_scoreDigits = false; // for displaying scores one time in loop1 when switching from patterns
bool show_swapSect=false; // set state to display swapped sections letters
bool show_Reset=false; // display reset mode

//RF switch
RCSwitch rfSwitch = RCSwitch();

// Timers used to precvent effecting score change at short intervals (i.e.when long pressing remote buttons) 
millisDelay scoreDelay1;
millisDelay scoreDelay1_1;
millisDelay scoreDelay2;
millisDelay scoreDelay2_1;
millisDelay resetDelay;

void setup() 
{
  
  Serial.begin(115200);
  pinMode(25, OUTPUT); //LED on processor board 
  rfSwitch.enableReceive(0);  // Receiver on interrupt 0 => that is pin #2
  patternPlay=true; // starts the scoreboard status to be in pattern mode

}

void setup1() { 

  FastLED.addLeds<WS2812, LED_PIN, GRB>(led, totalNumLEDs).setCorrection(CRGB(120, 200, 255)); 
  Serial.begin(115200);
  FastLED.clear();
  setDigit(0,0,BRIGHTNESS,0,0); // sets red colour for first section of LEDs
  setDigit(0,1,0,0,BRIGHTNESS); // sets blue colour for second section of LEDs 

}
  

// FastLED list of patterns to cycle through.  Each is defined as a separate function below.
typedef void (*SimplePatternList[])();
SimplePatternList gPatterns = { sinelon, juggle, bpm, rainbow, rainbowWithGlitter, confetti };
uint8_t gCurrentPatternNumber = 0; // Index number of which pattern is current
uint8_t gHue = 0; // rotating "base color" used by many of the patterns


///// FIRST LOOP TO RECEIVE RF SIGNAL AND SET STATE
void loop() {

  currPos[0]=sectPos[0]; //keep track of section position

  if (rfSwitch.available()) { //signal received by RF receiver
    int receivedValue = rfSwitch.getReceivedValue();
    Serial.print(" Rcv ");
    Serial.println( receivedValue );

    if (patternPlay==false) { // allow only when not playing pattern

      switch (receivedValue) {
        
        case RED_remote_A_ON: //goalpost A add score
          if (!scoreDelay1.isRunning() && show_Reset==false) {
            scoreCount[0]++;
            setDigit(scoreCount[0], sectPos[0], BRIGHTNESS,0,0);
            scoreDelay1.start(500);
            digitalWrite(25, HIGH); //board LED indicator
          } else {
            scoreDelay1.restart();
          }
        break;

        case BLUE_remote_B_ON://goalpost B add score
          if (!scoreDelay2.isRunning() && show_Reset==false) {
            scoreCount[1]++;
            setDigit(scoreCount[1], sectPos[1], 0,0,BRIGHTNESS);
            scoreDelay2.start(500);
            digitalWrite(25, HIGH); //board LED indicator
          } else {
            scoreDelay2.restart();
          }
        break;
        
        case SWAP_AB_switch: // swap section slider switch  to left
          minusToggle=0; // exit minus mode in case this happens in minus mode
          sectPos[0] = 0;
          sectPos[1] = 1;
          if (currPos[0]!=sectPos[0] && minusToggle==0 ) { // allow only when section position is not same and not in modes: minus
            show_swapSect = true;
            delay(500); // prevent continuoud transmit from causing multiple toggles on button press
          }
        break;

        case SWAP_BA_switch: // swap section slider switch to right
          minusToggle=0; // exit minus mode in case this happens in minus mode
          sectPos[0] = 1;
          sectPos[1] = 0;
          if (currPos[0]!=sectPos[0] && minusToggle==0 ) { // allow only when section position is not same and not in modes: minus
            show_swapSect = true;
            delay(500); // prevent continuoud transmit from causing multiple toggles on button press
          }
        break;

      }

      if (minusToggle==0) { // allow only when not in minus mode
        
        switch (receivedValue) {

          case MINUS_button: // enter minus mode
            if (show_swapSect==false && show_Reset==false && (scoreCount[1]+scoreCount[2]>0)) { // allow only when not in modes: Swap, Reset, AND scores not zero
              minusToggle=1;
              delay(500); // prevent continuoud transmit from causing multiple toggles on button press
            }
          break;

          case RESET_button: //reset score
            if (minusToggle==0 && show_swapSect==false && (scoreCount[1]+scoreCount[2]>0)) { // allow only when not in modes: minus , swap, AND scores not zero 
              if (show_Reset==false){
                show_Reset=true;
                resetDelay.start(3000);
                delay(500); // prevent continuoud transmit from causing multiple toggles on button press
              }
              else if (show_Reset==1 && resetDelay.isRunning() ) { //reset scores
                for (int i = 0; i < SECT_per_STRIP; i++) {
                  scoreCount[i] = 0;
                  setDigit(scoreCount[i], sectPos[i], 0, 0, 0 );
                }
                show_Reset=false;
                resetDelay.finish();
                delay(500); // prevent continuoud transmit from causing multiple toggles on button press
              }
              //Serial.print("show_Reset = ");
              //Serial.println(show_Reset);
            }
          break;
        }
      }
      else { // in minus mode, i.e minusToggle not zero

        switch (receivedValue) {

          case MINUS_button: // minus button
            if (minusToggle==1) {
              minusToggle=2;
              delay(500); // prevent continuous transmit from causing multiple toggles on button press
            } 
            else if (minusToggle==2) { // minusToggle=2
              minusToggle=0;
              delay(500); // prevent continuous transmit from causing multiple toggles on button press
            }
          break;

          case MINUS_1_button: // minus score value
            if (minusToggle==1) {
              if (!scoreDelay1_1.isRunning()) {
                if (scoreCount[0] > 0) {
                  scoreCount[0]--;
                  setDigit(scoreCount[0], sectPos[0], BRIGHTNESS,0,0);
                  scoreDelay1_1.start(250);
                  digitalWrite(25, HIGH); //board LED indicator
                }
              } else {
                scoreDelay1_1.restart();
              }
            }
            if (minusToggle==2) {
              if (!scoreDelay2_1.isRunning()) {
                if (scoreCount[1] > 0) {
                  scoreCount[1]--;
                  setDigit(scoreCount[1], sectPos[1], 0,0,BRIGHTNESS);
                  scoreDelay2_1.start(250);
                  digitalWrite(25, HIGH); //board LED indicator
                }
              } else {
                scoreDelay2_1.restart();
              }
            }
          break;
        }
      }
    }
  }

  if (rfSwitch.getReceivedValue()==MODE_button) { // pattern mode button received
    if (minusToggle==0 && show_swapSect==false && show_Reset==false){ //only allow when not in modes: minus, reset, swap
      patternPlay= 1-patternPlay; // toggle state
      if (patternPlay==0){ // if toggled to score mode
        set_scoreDigits=1; // to set score display in loop1 to execute once
      }
      Serial.print ("Pattern Play State= ");
      Serial.println (patternPlay);
      FastLED.clear();
      delay(500); //  prevent continuoud transmit from causing multiple toggles on button press
    }
  }

  rfSwitch.resetAvailable();

  if (scoreDelay1.justFinished() || scoreDelay1_1.justFinished() || scoreDelay2.justFinished() || scoreDelay2_1.justFinished()) {
    digitalWrite(25, LOW); //LED on board
  }
  if (resetDelay.justFinished()) {
    show_Reset=false;
    set_scoreDigits=1;
  }
}
///// END OF FIRST LOOP TO RECEIVE RF SIGNAL AND SET STATE


///// SECOND LOOP TO SET LED MODE BASED ON STATE SET
void loop1() {

  if (patternPlay==true){ // play patterns if toggle is true
    gPatterns[gCurrentPatternNumber]();
    // do some periodic updates
    EVERY_N_MILLISECONDS(1) { gHue++; } // slowly cycle the "base color" through the rainbow
    EVERY_N_SECONDS( 5 ) { nextPattern(); } // change patterns periodically 
  }

  else { // play pattern is false, so display the score related info
    
    if (show_swapSect==true) { // swap section needs to be displayed
    // show section position
      for (int i=0; i<15; i++){
        FastLED.clear();
        setLetter(0);
        setLetter(1);
        FastLED.show();
        FastLED.delay(50);
        FastLED.clear();
        FastLED.show();
        FastLED.delay(15);
      }
      //reset swap state
      show_swapSect=false;
      // show scores
      for (int i = 0; i < SECT_per_STRIP; i++) { 
        setDigit(scoreCount[i],sectPos[i], (BRIGHTNESS*(1-i)), 0, (BRIGHTNESS*i));
      }
    }    
    
    if (set_scoreDigits==1) { //triggered when switching from patterns
      // set scores
      for (int i = 0; i < SECT_per_STRIP; i++) {
        setDigit(scoreCount[i],sectPos[i], (BRIGHTNESS*(1-i)), 0, (BRIGHTNESS*i));
      }
      set_scoreDigits=0;
    }

    if (minusToggle>0) { // show minus mode
      Serial.println(minusToggle);
      flashMinus(minusToggle);
    }

    if (show_Reset==true){
      setDigit(scoreCount[0],sectPos[0], BRIGHTNESS,0,0);
      setDigit(scoreCount[1],sectPos[1], 0,0, BRIGHTNESS);
      FastLED.show();
      FastLED.delay(20);
      setDigit(scoreCount[0],sectPos[0], 0,0,0);
      setDigit(scoreCount[1],sectPos[1], 0,0,0);
      FastLED.show();
      FastLED.delay(10);
    } 
  }
  FastLED.show();
  // insert a delay to keep the framerate modest
  FastLED.delay(1000/FRAMES_PER_SECOND); 

}
/////// END OF SECOND LOOP TO SET LED MODE BASED ON STATE SET

//// Function to flash digits when in minus mode
void flashMinus(int sideToFlash){
  setDigit(scoreCount[sideToFlash-1],sectPos[sideToFlash-1], 0,0,0);
  FastLED.show();
  FastLED.delay(150);
  setDigit(scoreCount[sideToFlash-1],sectPos[sideToFlash-1], (BRIGHTNESS*(1-sideToFlash-1)), 0, (BRIGHTNESS*(sideToFlash-1)));
  FastLED.delay(150);
}

//// Function for swapping A-B score positions. used in second loop 
void setLetter (int sect_Pos) { 
  // set display for oneth digit
  for (int j=0; j<SEG_per_DIGIT; j++){ // set for each digit's segment light status
    for (int i=0; i<LED_per_SEG; i++){ // set for each segment's LED pixel
      led[(sectPos[sect_Pos]*sect_offset)+(j*LED_per_SEG)+i] = (CRGB( (BRIGHTNESS*(1-sect_Pos)), 0, (BRIGHTNESS*sect_Pos) ))*letter[sect_Pos][j];
    }
  }
}

//// Function to set the digit for displaying scores
void setDigit(int scoreValue, int sect_Pos, int R, int G, int B) {
  int oneth_val = scoreValue-(10*round(scoreValue/10));
  int tenth_val = round(scoreValue/10);

  Serial.print(tenth_val);  
  Serial.print(oneth_val);  

  // set display for oneth digit
  for (int j=0; j<SEG_per_DIGIT; j++){ // set for each digit's segment light status
    for (int i=0; i<LED_per_SEG; i++){ // set for each segment's LED pixel
      led[(sect_Pos*sect_offset)+(j*LED_per_SEG)+i] = (CRGB(R, G, B))*digit[oneth_val][j];
      //Serial.print((sect_Pos*sect_offset)+(j*LED_per_SEG)+i);
      //Serial.print(", ");  
    }
    //Serial.println( " -> ");
  }

  // set display for tenth digit
  for (int j=0; j<SEG_per_DIGIT; j++){ // set for each digit's segment light status
    for (int i=0; i<LED_per_SEG; i++){ // set for each segment's LED pixel
      led[(sect_Pos*sect_offset)+digit_offset+(j*LED_per_SEG)+i] = (CRGB(R, G, B))*digit[tenth_val][j];
      //Serial.print((sect_Pos*sect_offset)+digit_offset+(j*LED_per_SEG)+i);
      //Serial.print(", ");  
    }
    //Serial.println( " -> ");
  }
}



//////// FastLED functions ///////////////////

void nextPattern()
{
  // add one to the current pattern number, and wrap around at the end
  gCurrentPatternNumber = (gCurrentPatternNumber + 1) % ARRAY_SIZE( gPatterns);
}

void sinelon()
{
  // a colored dot sweeping back and forth, with fading trails
  fadeToBlackBy( led, totalNumLEDs, 250);
  int pos = beatsin16( 28, 0, totalNumLEDs-1 );
  led[pos] += CHSV( gHue, 255, 255);
}

void juggle() {
  // eight colored dots, weaving in and out of sync with each other
  fadeToBlackBy( led, totalNumLEDs, 50);
  uint8_t dothue = 0;
  for( int i = 0; i < 6; i++) {
    led[beatsin16( i+5, 0, totalNumLEDs-1 )] |= CHSV(dothue, 200, 255);
    dothue += 32;
  }
}

void bpm()
{
  // colored stripes pulsing at a defined Beats-Per-Minute (BPM)
  uint8_t BeatsPerMinute = 60;
  CRGBPalette16 palette = RainbowStripeColors_p;
  uint8_t beat = beatsin8( BeatsPerMinute, 4, 30);
  for( int i = 0; i < totalNumLEDs; i++) { //9948
    led[i] = ColorFromPalette(palette, gHue+(i*2), beat-gHue+(i*2));
  }
}

void rainbow() 
{
  // FastLED's built-in rainbow generator
  fill_rainbow( led, totalNumLEDs, gHue, 0.5);
  fadeToBlackBy( led, totalNumLEDs, 220);
}

void rainbowWithGlitter() 
{
  // built-in FastLED rainbow, plus some random sparkly glitter
  rainbow();
  addGlitter(500);
}

void addGlitter( fract8 chanceOfGlitter) 
{
  if( random8() < chanceOfGlitter) {
    led[ random16(totalNumLEDs) ] += CRGB::White;
  }
}

void confetti() 
{
  // random colored speckles that blink in and fade smoothly
  fadeToBlackBy( led, totalNumLEDs, 12);
  int pos = random16(totalNumLEDs);
  led[pos] += CHSV( gHue + random8(255), 255, 255);
}

//////////////////// End of FastLED functions ///////////////////////////////