Bitcoin Ticker v3 Backup 2.txt

// Libraries
#include "TFT_eSPI.h"
#include "time.h"
#include <WiFiManager.h> // https://github.com/tzapu/WiFiManager
#include <HTTPClient.h>
#include "ArduinoJson.h"
#include "WiFi.h"
#include "Free_Fonts.h"

// Images
#include "Screen1a_Success_2.h"
#include "Screen1b_Fail_2.h"
#include "Screen1_WiFi_2.h"
#include "Screen2_Price_2.h"

// Fonts
#include "LemonMilkFont.h"
#include "AlarmClockFont.h"

// LEDs
#define CYD_LED_BLUE 17
#define CYD_LED_RED 4
#define CYD_LED_GREEN 16

// TFT Display
TFT_eSPI tft = TFT_eSPI();
TFT_eSprite sprite = TFT_eSprite(&tft);

// Time
const char* ntpServer = "pool.ntp.org";
#define DEFAULT_TIMEZONE	0 // UTC +/-
int gmtOffset_sec{ DEFAULT_TIMEZONE };

// Preferred Currency
#define DEFAULT_CURRENCY "USD" // Default
char prefCurrency[5]{DEFAULT_CURRENCY};

// Function prototypes
void getAndDisplayBlockHeight();
void getAndDisplayBitcoinPrices();
void clearScreen();
void getBitcoinFees();
void displayLocalTime();
void wifiSignal();

// Declare variables
String ip = "";
int primaryBGColour = ((8 << 11) | (16 << 5) | 8); // Dark Grey from Figma   // ((0 << 11) | (0 << 5) | 0); // Black
//int secondaryBGColour = ((26 << 11) | (54 << 5) | 26); // Light Grey from Figma // ((31 << 11) | (38 << 5) | 0); //
int secondaryBGColour = ((8 << 11) | (16 << 5) | 8); // Dark Grey from Figma //((0 << 11) | (0 << 5) | 0); // Black ((26 << 11) | (54 << 5) | 26); // Light Grey from Figma // ((31 << 11) | (38 << 5) | 0); //
int primaryTextColour = ((31 << 11) | (63 << 5) | 31); // White
int secondaryTextColour = ((31 << 11) | (38 << 5) | 0); // Bitcoin Orange
int currentScreen = 0;
long lastApiCallTime = 0;
const unsigned long apiCallInterval = 120000;  // 2 minutes in milliseconds
long lastWhile1Time = 0; // Over 1 minute to ensure it executes the first time
const unsigned long while1Interval = 60000; // 1 minute
long lastWhile2Time = 0; // Over seconds to ensure it executes the first time
const unsigned long while2Interval = 5000; // 5 seconds
int touched = false;
bool feesBool = true;

double usd24HrVolume = 0;
double usdPrice = 0;
double usd24HrChange = 0;
double eurPrice = 0;
double eur24HrChange = 0;
double gbpPrice = 0;
double gbp24HrChange = 0;
double moscowTime = 0;

// API Links
const char* feesApiUrl = "https://mempool.space/api/v1/fees/recommended";
const char* pricesApiUrl = "https://mempool.space/api/v1/prices";
const char* blockHeightApiUrl = "https://mempool.space/api/blocks/tip/height";
const char* difficultyApiUrl = "https://mempool.space/api/v1/difficulty-adjustment";
const char* hashrateApiUrl = "https://mempool.space/api/v1/mining/hashrate/3d";
const char* coinGeckoApiUrl  = "https://api.coingecko.com/api/v3/simple/price?ids=bitcoin&vs_currencies=usd%2Cgbp%2Ceur&include_market_cap=true&include_24hr_vol=true&include_24hr_change=true&include_last_updated_at=true";

String formatNumberWithCommas(int number) {
    String result = String(number);
    int length = result.length();
    
    for (int i = length - 3; i > 0; i -= 3) {
        result = result.substring(0, i) + "," + result.substring(i);
    }

    return result;
}

void setup() {
    Serial.begin(115200);

    tft.init();
    tft.setRotation(1);
    tft.setSwapBytes(true);
    tft.pushImage(0, 0, 320, 240, Screen1_WiFi_2);
    
    // Initialise LEDs
    pinMode(CYD_LED_RED, OUTPUT);
    pinMode(CYD_LED_GREEN, OUTPUT);
    pinMode(CYD_LED_BLUE, OUTPUT);

    //Turn LEDs Off (they're annoying)
    digitalWrite(CYD_LED_RED, HIGH); // The LEDs are "active low", meaning HIGH == off, LOW == on
    digitalWrite(CYD_LED_GREEN, HIGH);
    digitalWrite(CYD_LED_BLUE, HIGH);
    
    
        //Create WiFi Manager object
        WiFiManager wm;
        bool res;
        wm.resetSettings(); // Reset WiFi credentials TO DO: Assign Button (held) to this action

        // Set up Timezone Parameter - Text box (Number)
        char charZone[6];
        sprintf(charZone, "%d", gmtOffset_sec);
        WiFiManagerParameter time_text_box_num("TimeZone", "TimeZone fromUTC (-12/+12)", charZone, 3);
        
        // Set up Currency Parameter - Text box (String)
        WiFiManagerParameter currency_text_box("currency", "Preferred Currency", DEFAULT_CURRENCY, 3);

        //Check up Mempool Fees Parameter - Checkbox (Bool)
        char *customHtml;
        if (feesBool)
        {
          customHtml = "type=\"checkbox\" checked";
        }
        else
        {
          customHtml = "type=\"checkbox\"";
        }
        // Value is "T" if Checkbox == TRUE
        WiFiManagerParameter fees_checkbox("key_bool", "Display Mempool Fees", "T", 2, customHtml); 

        wm.addParameter(&time_text_box_num);
        wm.addParameter(&currency_text_box);
        wm.addParameter(&fees_checkbox);

        res = wm.autoConnect("BitcoinTickerAP", "BitcoinTickers"); // Access Point SSID & Password
        if(!res) {
            Serial.println("Failed to connect");
            tft.pushImage(0, 0, 320, 240, Screen1b_Fail_2); // WiFi Not Connected screen          
        } 
        else {
            tft.pushImage(0, 0, 320, 240, Screen1a_Success_2); // WiFi Connected screen
            delay(500);
            tft.fillScreen(primaryBGColour);
        }   

    // Convert Timezone number value
    gmtOffset_sec = atoi(time_text_box_num.getValue());
    gmtOffset_sec *= 3600; // Convert UTC offset to seconds (1 hour = 3600 seconds)
    
    //Convert the string value
    strncpy(prefCurrency, currency_text_box.getValue(), sizeof(prefCurrency));
    Serial.println(prefCurrency);

    //Convert the bool value
    feesBool = (strncmp(fees_checkbox.getValue(), "T", 1) == 0);

    ip=WiFi.localIP().toString();
    
    configTime(gmtOffset_sec, 0, ntpServer); 
    displayLocalTime();
    getAndDisplayBlockHeight();
    wifiSignal();
    //getAndDisplayBitcoinPrices();
}

void clearScreen() {
    /*
    tft.fillScreen(primaryBGColour);
    // Top Light Grey
    sprite.createSprite(320, 30);//20
    sprite.fillSprite(secondaryBGColour);
    sprite.pushSprite(0, 0);
    sprite.deleteSprite();
    */

    // Main Dark Grey 
    //tft.fillScreen(primaryBGColour);
    sprite.createSprite(320, 100);
    sprite.fillSprite(primaryBGColour);
    sprite.pushSprite(0, 30);
    sprite.deleteSprite();
}

void displayLocalTime(){
    struct tm timeinfo;
    if(!getLocalTime(&timeinfo)){
      Serial.println("Failed to obtain time");
      return;
    }

    char formattedTime[6]; // HH:MM format
    char formattedLongTime[9]; // DD MMM YYYY HH:MM:SS format
    char formattedDateTime[20]; // DD MMM YYYY HH:MM format
    
    strftime(formattedTime, sizeof(formattedTime), "%H:%M", &timeinfo);
    strftime(formattedLongTime, sizeof(formattedLongTime), "%H:%M:%S", &timeinfo);
    strftime(formattedDateTime, sizeof(formattedDateTime), "%d %b %Y %H:%M", &timeinfo);
    
    sprite.createSprite(132, 27); //130, 25
    sprite.fillSprite(secondaryBGColour);
    sprite.setTextColor(TFT_WHITE, secondaryBGColour); //Black to White text
    sprite.drawString(formattedDateTime, sprite.width()/2, sprite.height()/2, 2); //formattedDateTime, , 2);
    sprite.pushSprite(0, 0);
    sprite.deleteSprite();
}

void displayBitcoinFees(int fastestFee, int halfHourFee, int hourFee, double difficultyChange, int difficultyChangeBlocks, int timeAverage, double currentHashrate, double currentDifficulty) {      
        
        // Convert double values to strings with limited precision (3 digits)
        String hashrateString = String(currentHashrate, 2); // e.g., "123.45"
        String difficultyString = String(currentDifficulty, 2); // e.g., "678.90"

        // Truncate strings to the first 3 digits
        String truncatedHashrate = hashrateString.substring(0, 3); // e.g., "123"
        String truncatedDifficulty = difficultyString.substring(0, 2); // e.g., "67"

        // Left
        sprite.createSprite(160, 110); //300, 105
        sprite.fillSprite(primaryBGColour);
        sprite.loadFont(lemonMilkFont_20);
        sprite.setTextColor(secondaryTextColour, primaryBGColour);
        sprite.drawString(String("Difficulty"), sprite.width() / 2, (sprite.height() / 2)-11);
        sprite.setTextColor(primaryTextColour, primaryBGColour);
        sprite.drawString(String(truncatedDifficulty) + String("T"), sprite.width() / 2, (sprite.height() / 2)+11);     
        sprite.pushSprite(0, 80);
        sprite.unloadFont();
        sprite.deleteSprite();

        // Right
        sprite.createSprite(160, 110); //300, 105
        sprite.fillSprite(primaryBGColour);
        sprite.loadFont(lemonMilkFont_20);
        sprite.setTextColor(secondaryTextColour, primaryBGColour);
        sprite.drawString(String("Hashrate"), sprite.width() / 2, (sprite.height() / 2)-11);
        sprite.setTextColor(primaryTextColour, primaryBGColour);
        sprite.drawString(String(truncatedHashrate) + String(" EH/s"), sprite.width() / 2, (sprite.height() / 2)+11);
        sprite.pushSprite(160, 80);
        sprite.unloadFont();
        sprite.deleteSprite();

        /*
        // 10mins
        sprite.createSprite(100, 40);
        sprite.setTextDatum(4);
        sprite.fillSprite(primaryBGColour);
        
        sprite.loadFont(lemonMilkFont_20);
        sprite.setTextColor(secondaryTextColour, primaryBGColour);
        sprite.drawString(String("10 mins"), sprite.width() / 2, (sprite.height() / 2)-11);
        sprite.loadFont(lemonMilkFont_15);
        sprite.setTextColor(TFT_WHITE, primaryBGColour);
        sprite.drawString(String(fastestFee) + String(" sat/vB"), sprite.width() / 2, (sprite.height() / 2)+11);
        sprite.unloadFont();
        */
        
        // 10mins
        sprite.createSprite(100, 20);
        sprite.setTextDatum(4);
        sprite.fillSprite(primaryBGColour);
        sprite.loadFont(lemonMilkFont_20);
        sprite.setTextColor(secondaryTextColour, primaryBGColour);
        sprite.drawString(String("10 mins"), sprite.width() / 2, sprite.height() / 2);
        sprite.pushSprite(10, 190);
        sprite.unloadFont();
        sprite.deleteSprite();
        
        sprite.createSprite(100, 20);
        sprite.setTextDatum(4);
        sprite.fillSprite(primaryBGColour);
        sprite.loadFont(lemonMilkFont_15);
        sprite.setTextColor(TFT_WHITE, primaryBGColour);
        sprite.drawString(String(fastestFee) + String(" sat/vB"), sprite.width() / 2, sprite.height() / 2);
        sprite.pushSprite(10, 210);
        sprite.unloadFont();
        sprite.deleteSprite();

        // 30mins
        sprite.createSprite(100, 20);
        sprite.setTextDatum(4);
        sprite.fillSprite(primaryBGColour);
        sprite.loadFont(lemonMilkFont_20);
        sprite.setTextColor(secondaryTextColour, primaryBGColour);
        sprite.drawString(String("30 mins"), sprite.width() / 2, sprite.height() / 2);
        sprite.pushSprite(110, 190);
        sprite.unloadFont();
        sprite.deleteSprite();

        sprite.createSprite(100, 20);
        sprite.setTextDatum(4);
        sprite.fillSprite(primaryBGColour);
        sprite.loadFont(lemonMilkFont_15);
        sprite.setTextColor(TFT_WHITE, primaryBGColour);
        sprite.drawString(String(halfHourFee) + String(" sat/vB"), sprite.width() / 2, sprite.height() / 2);
        sprite.pushSprite(110, 210);
        sprite.unloadFont();
        sprite.deleteSprite();

        // 1 hour
        sprite.createSprite(100, 20);
        sprite.setTextDatum(4);
        sprite.fillSprite(primaryBGColour);
        sprite.loadFont(lemonMilkFont_20);
        sprite.setTextColor(secondaryTextColour, primaryBGColour);
        sprite.drawString(String("1 hour"), sprite.width() / 2, sprite.height() / 2);
        sprite.pushSprite(210, 190);
        sprite.unloadFont();
        sprite.deleteSprite();

        sprite.createSprite(100, 20);
        sprite.setTextDatum(4);
        sprite.fillSprite(primaryBGColour);
        sprite.loadFont(lemonMilkFont_15);
        sprite.setTextColor(TFT_WHITE, primaryBGColour);
        sprite.drawString(String(hourFee) + String(" sat/vB"), sprite.width() / 2, sprite.height() / 2);
        sprite.pushSprite(210, 210);
        sprite.unloadFont();
        sprite.deleteSprite();
        
        // Difficulty Adjustment
        sprite.createSprite(300, 20); //300, 20
        sprite.setTextDatum(4);
        sprite.fillSprite(primaryBGColour);
        sprite.loadFont(lemonMilkFont_15);
        sprite.setTextColor(secondaryTextColour, primaryBGColour);
        sprite.drawString("Difficulty Adjustment", sprite.width() / 2, sprite.height() / 2);
        sprite.pushSprite(10, 40);
        sprite.unloadFont();
        sprite.deleteSprite();

        sprite.createSprite(300, 20);
        sprite.setTextDatum(4);
        sprite.fillSprite(primaryBGColour);
        sprite.loadFont(lemonMilkFont_20);
        sprite.setTextColor(TFT_WHITE, primaryBGColour);
        if (difficultyChange < 0)
          {
          sprite.drawString(String("-") + String(difficultyChange) + String("%") + String(" in ") + String(difficultyChangeBlocks) + String(" Blocks") , sprite.width() / 2, sprite.height() / 2);   
          }
        else {
          sprite.drawString(String("+") + String(difficultyChange) + String("%") + String(" in ") + String(difficultyChangeBlocks) + String(" Blocks") , sprite.width() / 2, sprite.height() / 2);
        }
        sprite.pushSprite(10, 60);
        sprite.unloadFont();
        sprite.deleteSprite();        
}

void displayBitcoinPrices(int usdPrice, double usd24HrChange, int eurPrice,  double eur24HrChange, int gbpPrice,  double gbp24HrChange, int moscowPrice) {   //Remove "Price" to use Mempool prices
    String formattedUSD = formatNumberWithCommas(usdPrice);
    String formattedEUR = formatNumberWithCommas(eurPrice);
    String formattedGBP = formatNumberWithCommas(gbpPrice);
    String formattedMoscow = formatNumberWithCommas(moscowPrice);
    
Serial.println("Display Prices");

    if (strcmp(prefCurrency, "USD") == 0)
      {
        sprite.createSprite(320, 80);
        sprite.setTextDatum(4);
        sprite.fillSprite(primaryBGColour);
        sprite.loadFont(lemonMilkFont_60);
        sprite.setTextColor(TFT_WHITE, primaryBGColour);
        sprite.drawString(String("$") + String(formattedUSD), sprite.width() / 2, 50); // Add GFXFF to the end? // formattedUSD
        sprite.pushSprite((tft.width() - sprite.width()) / 2, 30); // Centre the Sprite
        sprite.unloadFont();
        sprite.deleteSprite();
        
        sprite.createSprite(300, 60);
        sprite.setTextDatum(4);
        sprite.fillSprite(primaryBGColour);
        sprite.loadFont(lemonMilkFont_30);
        sprite.setTextColor(TFT_WHITE, primaryBGColour);
        sprite.drawString(String("€") + formattedEUR + String("   £") + formattedGBP, sprite.width() / 2, sprite.height() / 2);
        sprite.pushSprite((tft.width() - sprite.width()) / 2, 135); //135 to 145// Centre the Sprite
        sprite.unloadFont();
        sprite.deleteSprite();

        sprite.createSprite(300, 60);
        sprite.setTextDatum(4);
        sprite.fillSprite(primaryBGColour);
        sprite.setTextColor(TFT_WHITE, primaryBGColour);
        sprite.loadFont(lemonMilkFont_30);
        sprite.drawString(formattedMoscow + " sats/$", sprite.width() / 2, sprite.height() / 2);
        sprite.pushSprite((tft.width() - sprite.width()) / 2, 185); //175 to 185 // Centre the Sprite
        sprite.unloadFont();
        sprite.deleteSprite();

        sprite.createSprite(320, 25);
        sprite.setTextDatum(4);
        sprite.fillSprite(primaryBGColour);
        sprite.loadFont(lemonMilkFont_20);
        if (usd24HrChange >= 0) {
          sprite.setTextColor(TFT_GREEN, primaryBGColour);
          sprite.drawString("24hrs +"+String(usd24HrChange)+"%", sprite.width()/2, sprite.height()/2);
        }
        else {
          sprite.setTextColor(TFT_RED, primaryBGColour);
          sprite.drawString("24hrs "+String(usd24HrChange)+"%", sprite.width()/2, sprite.height()/2);
        }
          sprite.pushSprite((tft.width() - sprite.width()) / 2, 110);  //230, 100); 
          sprite.unloadFont(); 
          sprite.deleteSprite();
      } 
    else if (strcmp(prefCurrency, "EUR") == 0)
      {
          sprite.createSprite(320, 80);
          sprite.setTextDatum(4);
          sprite.fillSprite(primaryBGColour);
          sprite.loadFont(lemonMilkFont_60);
          sprite.setTextColor(TFT_WHITE, primaryBGColour);
          sprite.drawString(String("€") + String(formattedEUR), sprite.width() / 2, 50); // Add GFXFF to the end?
          sprite.pushSprite((tft.width() - sprite.width()) / 2, 30); // Centre the Sprite
          sprite.unloadFont();
          sprite.deleteSprite();
          
          sprite.createSprite(300, 50);
          sprite.setTextDatum(4);
          sprite.fillSprite(primaryBGColour);
          sprite.loadFont(lemonMilkFont_30);
          sprite.setTextColor(TFT_WHITE, primaryBGColour);
          sprite.drawString(String("$") + formattedUSD + String("   £") + formattedGBP, sprite.width() / 2, sprite.height() / 2);
          sprite.pushSprite((tft.width() - sprite.width()) / 2, 145); // Centre the Sprite
          sprite.unloadFont();
          sprite.deleteSprite();

          sprite.createSprite(300, 60);
          sprite.setTextDatum(4);
          sprite.fillSprite(primaryBGColour);
          sprite.setTextColor(TFT_WHITE, primaryBGColour);
          sprite.loadFont(lemonMilkFont_30);
          sprite.drawString(formattedMoscow + " sats/$", sprite.width() / 2, sprite.height() / 2);
          sprite.pushSprite((tft.width() - sprite.width()) / 2, 185); // Centre the Sprite
          sprite.unloadFont();
          sprite.deleteSprite();

          sprite.createSprite(320, 25); //25
          sprite.setTextDatum(4);
          sprite.fillSprite(primaryBGColour);
          sprite.loadFont(lemonMilkFont_20);
          if (eur24HrChange >= 0) {
            sprite.setTextColor(TFT_GREEN, primaryBGColour);
            sprite.drawString("24hrs +"+String(eur24HrChange)+"%", sprite.width()/2, sprite.height()/2);
          }
           else {
            sprite.setTextColor(TFT_RED, primaryBGColour);
            sprite.drawString("24hrs "+String(eur24HrChange)+"%", sprite.width()/2, sprite.height()/2);
          }
        sprite.pushSprite((tft.width() - sprite.width()) / 2, 110);  //230, 100); 
        sprite.unloadFont(); 
        sprite.deleteSprite();
      }
    else if (strcmp(prefCurrency, "GBP") == 0)
      {
          sprite.createSprite(320, 80);
          sprite.setTextDatum(4);
          sprite.fillSprite(primaryBGColour);
          sprite.loadFont(lemonMilkFont_60);
          sprite.setTextColor(TFT_WHITE, primaryBGColour);
          sprite.drawString(String("£") + String(formattedGBP), sprite.width() / 2, 50); // Add GFXFF to the end?
          sprite.pushSprite((tft.width() - sprite.width()) / 2, 30); // Centre the Sprite
          sprite.unloadFont();
          sprite.deleteSprite();
          
          sprite.createSprite(300, 50);
          sprite.setTextDatum(4);
          sprite.fillSprite(primaryBGColour);
          sprite.loadFont(lemonMilkFont_30);
          sprite.setTextColor(TFT_WHITE, primaryBGColour);
          sprite.drawString(String("$") + formattedUSD + String("   €") + formattedEUR, sprite.width() / 2, sprite.height() / 2);
          sprite.pushSprite((tft.width() - sprite.width()) / 2, 145); // Centre the Sprite
          sprite.unloadFont();
          sprite.deleteSprite();

          sprite.createSprite(300, 60); //250, 40
          sprite.setTextDatum(4);
          sprite.fillSprite(primaryBGColour);
          sprite.setTextColor(TFT_WHITE, primaryBGColour);
          sprite.loadFont(lemonMilkFont_30);
          sprite.drawString(formattedMoscow + " sats/$", sprite.width() / 2, sprite.height() / 2);
          sprite.pushSprite((tft.width() - sprite.width()) / 2, 185); //195 // Centre the Sprite
          sprite.unloadFont();
          sprite.deleteSprite();

          sprite.createSprite(320, 25);
          sprite.setTextDatum(4);
          sprite.fillSprite(primaryBGColour);
          sprite.loadFont(lemonMilkFont_20);
          if (gbp24HrChange >= 0) {
            sprite.setTextColor(TFT_GREEN, primaryBGColour);
            sprite.drawString("24hrs +"+String(gbp24HrChange)+"%", sprite.width()/2, sprite.height()/2);
          }
           else {
            sprite.setTextColor(TFT_RED, primaryBGColour);
            sprite.drawString("24hrs "+String(gbp24HrChange)+"%", sprite.width()/2, sprite.height()/2);
          }
        sprite.pushSprite((tft.width() - sprite.width()) / 2, 110);  //230, 100); 
        sprite.unloadFont(); 
        sprite.deleteSprite();
      }
    else //Default to USD
      {
        sprite.createSprite(320, 80);
        sprite.setTextDatum(4);
        sprite.fillSprite(primaryBGColour);
        sprite.loadFont(lemonMilkFont_60);
        sprite.setTextColor(TFT_WHITE, primaryBGColour);
        sprite.drawString(String("$") + String(formattedUSD), sprite.width() / 2, 50); // Add GFXFF to the end?
        sprite.pushSprite((tft.width() - sprite.width()) / 2, 30); // Centre the Sprite
        sprite.unloadFont();
        sprite.deleteSprite();
        
        sprite.createSprite(300, 50);
        sprite.setTextDatum(4);
        sprite.fillSprite(primaryBGColour);
        sprite.loadFont(lemonMilkFont_30);
        sprite.setTextColor(TFT_WHITE, primaryBGColour);
        sprite.drawString(String("€") + formattedEUR + String("   £") + formattedGBP, sprite.width() / 2, sprite.height() / 2);
        sprite.pushSprite((tft.width() - sprite.width()) / 2, 145); //135 to 145// Centre the Sprite
        sprite.unloadFont();
        sprite.deleteSprite();

        sprite.createSprite(300, 60);
        sprite.setTextDatum(4);
        sprite.fillSprite(primaryBGColour);
        sprite.setTextColor(TFT_WHITE, primaryBGColour);
        sprite.loadFont(lemonMilkFont_30);
        sprite.drawString(formattedMoscow + " sats/$", sprite.width() / 2, sprite.height() / 2);
        sprite.pushSprite((tft.width() - sprite.width()) / 2, 185); //175 to 185 // Centre the Sprite
        sprite.unloadFont();
        sprite.deleteSprite();

        sprite.createSprite(320, 25);
        sprite.setTextDatum(4);
        sprite.fillSprite(primaryBGColour);
        sprite.loadFont(lemonMilkFont_20);
        if (usd24HrChange >= 0) {
          sprite.setTextColor(TFT_GREEN, primaryBGColour);
          sprite.drawString("24hrs +"+String(usd24HrChange)+"%", sprite.width()/2, sprite.height()/2);
        }
        else {
          sprite.setTextColor(TFT_RED, primaryBGColour);
          sprite.drawString("24hrs "+String(usd24HrChange)+"%", sprite.width()/2, sprite.height()/2);
        }
          sprite.pushSprite((tft.width() - sprite.width()) / 2, 110);  //230, 100); 
          sprite.unloadFont(); 
          sprite.deleteSprite();
      }     
   }

void displayBlockHeight(int height) {   
    String formattedHeight = formatNumberWithCommas(height);
    
    sprite.createSprite(130, 25);
    sprite.fillSprite(secondaryBGColour);
    sprite.setTextColor(TFT_WHITE, secondaryBGColour);
    sprite.drawString(String(formattedHeight), sprite.width()/2, sprite.height()/2, 2); //formattedDateTime, , 2);
    sprite.pushSprite(200, 2);
    sprite.deleteSprite();
   }

void getAndDisplayBitcoinFees() {
  // Fees
  HTTPClient http;

  if (!http.begin(feesApiUrl)) {
    Serial.println("Connection to API failed");
    return;
  }

  int httpResponseCode = http.GET();
  if (httpResponseCode > 0) {
    String response = http.getString();
    http.end();

    DynamicJsonDocument doc(1024);
    deserializeJson(doc, response);

    int fastestFee = doc["fastestFee"];
    int halfHourFee = doc["halfHourFee"];
    int hourFee = doc["hourFee"];

    // Hashrate & Difficulty
    HTTPClient http;

  if (!http.begin(hashrateApiUrl)) {
    Serial.println("Connection to API failed");
    return;
  }

  int httpResponseCode = http.GET();
  if (httpResponseCode > 0) {
    String response = http.getString();
    http.end();

    DynamicJsonDocument doc(1024);
    deserializeJson(doc, response);

    double currentHashrate = doc["currentHashrate"];
    double currentDifficulty = doc["currentDifficulty"];
    
    /*
    if (hashrateString.length() == 14) { // 2 digit Trillions
      String hashrate2Digits = hashrateString.substring(0, 2);
      currentHashrateInt = hashrate2Digits.toInt();
    }
    else if (hashrateString.length() == 15) { // 3 digit Trillions
      String hashrate3Digits = hashrateString.substring(0, 3);
      currentHashrateInt = hashrate3Digits.toInt();
    }
    */
    //currentDifficulty

    // Difficulty Adjustment
    HTTPClient http;

  if (!http.begin(difficultyApiUrl)) {
    Serial.println("Connection to API failed");
    return;
  }

  int httpResponseCode = http.GET();
  if (httpResponseCode > 0) {
    String response = http.getString();
    http.end();

    DynamicJsonDocument doc(1024);
    deserializeJson(doc, response);

    double difficultyChange = doc["difficultyChange"];
    int remainingBlocks = doc["remainingBlocks"];
    int timeAverage = doc["timeAverage"];

    displayBitcoinFees(fastestFee, halfHourFee, hourFee, difficultyChange, remainingBlocks, timeAverage, currentHashrate, currentDifficulty);
  } else {
    Serial.println("Error on HTTP request");
    http.end();
  }
  }
  }
}

void getAndDisplayBitcoinPrices() {
// Limit API calls to every 2 mins
unsigned long currentMillis = millis();
Serial.println("getPrices Start");
Serial.println(currentMillis);
Serial.println(lastApiCallTime);
Serial.println(apiCallInterval);

//if (currentMillis - lastApiCallTime >= apiCallInterval) {
  Serial.println("getPrices IF");
  
  lastApiCallTime = currentMillis;

  HTTPClient http;

    if (!http.begin(coinGeckoApiUrl)) {
      Serial.println("Connection to API failed");
      return;
    }

    int httpResponseCode = http.GET();
    if (httpResponseCode > 0) {
      String response = http.getString();
      http.end();

      DynamicJsonDocument doc(1024);
      deserializeJson(doc, response);

      double usd24HrVolume = doc["bitcoin"]["usd_24h_vol"];
      double usdPrice = doc["bitcoin"]["usd"];
      double usd24HrChange = doc["bitcoin"]["usd_24h_change"];
      double eurPrice = doc["bitcoin"]["eur"];
      double eur24HrChange = doc["bitcoin"]["eur_24h_change"];
      double gbpPrice = doc["bitcoin"]["gbp"];
      double gbp24HrChange = doc["bitcoin"]["gbp_24h_change"];
      double moscowTime = 100000000/usdPrice;

      displayBitcoinPrices(usdPrice, usd24HrChange, eurPrice, eur24HrChange, gbpPrice, gbp24HrChange, moscowTime);
    }
}

void getAndDisplayBlockHeight() {
  HTTPClient http;
  if (http.begin(blockHeightApiUrl)) {
    int httpResponseCode = http.GET();

    if (httpResponseCode == HTTP_CODE_OK) {
      String response = http.getString();
      http.end();

      // Parse the response as a long directly (no identifier)
      long height = response.toInt();
      
      displayBlockHeight(height);

    } else {
      Serial.print("Error on HTTP request. Response code: ");
      Serial.println(httpResponseCode);
      http.end();
    }
  } else {
    Serial.println("Unable to connect to API");
  }
}

void wifiSignal() {
  if(WiFi.RSSI() > -80) { 
        sprite.createSprite(5, 5);
        sprite.setTextDatum(4);
        sprite.fillSprite(TFT_GREEN);
        sprite.pushSprite(295, 14); 
        sprite.deleteSprite();

        sprite.createSprite(5, 10);
        sprite.setTextDatum(4);
        sprite.fillSprite(TFT_GREEN);
        sprite.pushSprite(302, 9); 
        sprite.deleteSprite();

        sprite.createSprite(5, 15);
        sprite.setTextDatum(4);
        sprite.fillSprite(TFT_GREEN);
        sprite.pushSprite(309, 4);
        sprite.deleteSprite();   
  }
  else if (WiFi.RSSI() <= -80) {
        sprite.createSprite(5, 5);
        sprite.setTextDatum(4);
        sprite.fillSprite(TFT_ORANGE);
        sprite.pushSprite(295, 14); 
        sprite.deleteSprite();

        sprite.createSprite(5, 10);
        sprite.setTextDatum(4);
        sprite.fillSprite(TFT_ORANGE);
        sprite.pushSprite(302, 9); 
        sprite.deleteSprite();

        sprite.createSprite(5, 15);
        sprite.setTextDatum(4);
        sprite.fillSprite(primaryBGColour);
        sprite.pushSprite(309, 4);
        sprite.deleteSprite(); 
  }
  else {
        sprite.createSprite(5, 5);
        sprite.setTextDatum(4);
        sprite.fillSprite(TFT_RED);
        sprite.pushSprite(295, 14); 
        sprite.deleteSprite();

        sprite.createSprite(5, 10);
        sprite.setTextDatum(4);
        sprite.fillSprite(primaryBGColour);
        sprite.pushSprite(302, 9); 
        sprite.deleteSprite();

        sprite.createSprite(5, 15);
        sprite.setTextDatum(4);
        sprite.fillSprite(primaryBGColour);
        sprite.pushSprite(309, 4);
        sprite.deleteSprite(); 
  }
}

void loop() {
  
  if (feesBool) // If Mempool Fees checkbox == TRUE
    {
      displayLocalTime();
      getAndDisplayBlockHeight();
      wifiSignal();
      getAndDisplayBitcoinPrices();
      delay(55000); 
      //Does removing these fix the missing right side?
      //displayLocalTime();
      //getAndDisplayBlockHeight();
      //wifiSignal();
      getAndDisplayBitcoinFees();
      delay(7000);
  }
  else {
      displayLocalTime();
      getAndDisplayBlockHeight();
      wifiSignal();
      getAndDisplayBitcoinPrices();
      delay(55000); 
  }
}