Real-Time Bluetooth Lyrics

#include <Arduino.h>
#include <SPI.h>
#include <WiFi.h>
#include <WebServer.h>
#include <Preferences.h>
#include <time.h>
#include <Adafruit_GFX.h>
#include <Adafruit_ST7789.h>

static const int TFT_SCK=12,TFT_MOSI=11,TFT_CS=10,TFT_DC=14,TFT_RST=15;
static const int BTN_UP=1,BTN_DOWN=2,BTN_LEFT=3,BTN_RIGHT=4,BTN_PUSH=5,BTN_BACK=6;
Adafruit_ST7789 tft(TFT_CS,TFT_DC,TFT_RST); WebServer server(80); Preferences prefs;
enum Page {HOME, SETTINGS, WEATHER, WIFI_LIST, PASSWORD, ABOUT};
Page page=HOME; int selected=0,fontScale=2,colourIndex=0,wifiCount=0,selectedWifi=0,keyRow=0,keyCol=0; bool needDraw=true; String networks[12],chosenSsid,passwordText,lyricLine;
const uint16_t CYBER_BG=0x0841, CYBER_PANEL=0x1082, CYBER_DIM=0x39E7, CYBER_CYAN=0x07FF, CYBER_GREEN=0x07E0, CYBER_ORANGE=0xFD20;
uint16_t colors[]={ST77XX_WHITE,CYBER_CYAN,ST77XX_YELLOW,CYBER_GREEN,ST77XX_MAGENTA}; const char* keys[]={"ABCDEFGHIJ","KLMNOPQRST","UVWXYZ0123","456789.-_ "}; unsigned long lastPress=0;
void tx(int x,int y,const String&s,uint16_t c,uint8_t z=1){tft.setTextColor(c,CYBER_BG);tft.setTextSize(z);tft.setCursor(x,y);tft.print(s);} 
void ct(int y,const String&s,uint16_t c,uint8_t z=1){int16_t x1,y1;uint16_t w,h;tft.setTextSize(z);tft.getTextBounds(s,0,y,&x1,&y1,&w,&h);tx(max(3,(240-(int)w)/2),y,s,c,z);} 
void corners(int x,int y,int w,int h,uint16_t c){tft.drawFastHLine(x,y,14,c);tft.drawFastVLine(x,y,14,c);tft.drawFastHLine(x+w-14,y,14,c);tft.drawFastVLine(x+w,y,14,c);tft.drawFastHLine(x,y+h,14,c);tft.drawFastVLine(x,y+h-14,14,c);tft.drawFastHLine(x+w-14,y+h,14,c);tft.drawFastVLine(x+w,y+h-14,14,c);}
void head(const String&s){tft.fillRect(0,0,240,31,CYBER_PANEL);tft.drawFastHLine(0,30,240,CYBER_CYAN);tx(7,8,"// CYBER LYRICS",CYBER_CYAN);tx(7,20,s,CYBER_DIM);tx(177,8,WiFi.status()==WL_CONNECTED?"NET:ON":"NET:--",WiFi.status()==WL_CONNECTED?CYBER_GREEN:CYBER_ORANGE);}
void row(int y,const String&s,bool on){uint16_t edge=on?CYBER_CYAN:CYBER_DIM;tft.fillRect(10,y,220,45,on?0x10A4:CYBER_PANEL);corners(10,y,220,45,edge);tx(19,y+7,on?">":" ",on?CYBER_CYAN:CYBER_DIM,2);tx(42,y+15,s,on?ST77XX_WHITE:CYBER_DIM,1);if(on)tx(203,y+15,"[+]",CYBER_CYAN);}
void home(){tft.fillScreen(CYBER_BG);head("MAIN MENU");tx(10,39,"SYSTEM / SELECT MODULE",CYBER_DIM);const char* m[]={"SETTINGS","WEATHER + DATE","NETWORK / WIFI","ABOUT"};for(int i=0;i<4;i++)row(55+i*51,m[i],i==selected);tft.drawFastHLine(10,265,220,CYBER_DIM);tx(10,275,"UP/DOWN: NAVIGATE",CYBER_DIM);tx(10,289,"PUSH: OPEN  BACK: INFO",CYBER_DIM);if(lyricLine.length()){tft.fillRect(0,302,240,18,CYBER_PANEL);ct(305,lyricLine,colors[colourIndex]);}}
void settings(){tft.fillScreen(CYBER_BG);head("CONFIGURATION");corners(10,43,220,150,CYBER_DIM);tx(20,59,"DISPLAY PARAMETERS",CYBER_CYAN);tx(20,88,"TEXT SIZE",ST77XX_WHITE);tx(172,88,String(fontScale),colors[colourIndex],2);tx(20,119,"TEXT COLOUR",ST77XX_WHITE);tx(172,119,String(colourIndex+1)+"/5",colors[colourIndex],2);tx(20,150,"FONT PROFILE",ST77XX_WHITE);tx(20,169,"SEGOE SCRIPT: FILE REQUIRED",CYBER_ORANGE);row(221,"RETURN TO MENU",selected==2);tx(10,287,"LEFT/RIGHT: CHANGE",CYBER_DIM);}
void weather(){tft.fillScreen(ST77XX_BLACK);head("Weather & Date");struct tm n;if(getLocalTime(&n,10)){char d[20],w[20];strftime(d,20,"%d/%m/%Y",&n);strftime(w,20,"%A",&n);ct(60,w,colors[colourIndex],2);ct(100,d,ST77XX_WHITE,3);}else ct(80,"Connect WiFi",ST77XX_YELLOW,2);ct(160,"Weather API needs city",0xC618);ct(180,"and API key",0xC618);}
void wifiList(){tft.fillScreen(ST77XX_BLACK);head("Select WiFi");if(!wifiCount){ct(100,"No networks found",ST77XX_YELLOW,2);return;}for(int i=0;i<wifiCount;i++){bool on=i==selectedWifi;tft.fillRoundRect(6,34+i*30,228,26,4,on?0x2945:0x18E3);if(on)tft.drawRoundRect(6,34+i*30,228,26,4,ST77XX_CYAN);tx(12,42+i*30,networks[i],on?ST77XX_WHITE:0xC618);}tx(8,292,"PUSH: choose BACK: home",0xC618);}
void password(){tft.fillScreen(ST77XX_BLACK);head("WiFi password");tx(8,35,chosenSsid,ST77XX_YELLOW);String m;for(size_t i=0;i<passwordText.length();i++)m+='*';tx(8,54,m,ST77XX_WHITE,2);for(int r=0;r<4;r++)tx(8,92+r*31,keys[r],r==keyRow?ST77XX_CYAN:ST77XX_WHITE,2);tx(8,222,"PUSH:add  RIGHT:next",0xC618);tx(8,238,"BACK:delete DOWN:connect",0xC618);}
void about(){tft.fillScreen(CYBER_BG);head("SYSTEM INFO");corners(10,48,220,165,CYBER_CYAN);ct(67,"CYBER LYRICS TERMINAL",CYBER_CYAN);tft.drawFastHLine(22,88,196,CYBER_DIM);ct(106,"Powered by William Kreese",ST77XX_WHITE);ct(137,"IG : williamkreese21",ST77XX_WHITE);ct(158,"github : Williamkreese21",ST77XX_WHITE);ct(190,"STATUS: READY",CYBER_GREEN);tx(25,249,"PUSH / BACK: RETURN",CYBER_CYAN);}
void draw(){if(!needDraw)return;needDraw=false;switch(page){case HOME:home();break;case SETTINGS:settings();break;case WEATHER:weather();break;case WIFI_LIST:wifiList();break;case PASSWORD:password();break;case ABOUT:about();break;}}
void scan(){tft.fillScreen(ST77XX_BLACK);head("Scanning WiFi");ct(130,"Please wait...",ST77XX_WHITE,2);int n=WiFi.scanNetworks();wifiCount=min(n,12);for(int i=0;i<wifiCount;i++)networks[i]=WiFi.SSID(i);selectedWifi=0;page=WIFI_LIST;needDraw=true;}
void connect(){WiFi.begin(chosenSsid.c_str(),passwordText.c_str());tft.fillScreen(ST77XX_BLACK);head("Connecting");ct(120,"Connecting...",ST77XX_WHITE,2);unsigned long t=millis();while(WiFi.status()!=WL_CONNECTED&&millis()-t<15000)delay(150);if(WiFi.status()==WL_CONNECTED){prefs.begin("lyrics",false);prefs.putString("ssid",chosenSsid);prefs.putString("pass",passwordText);prefs.end();configTime(0,0,"pool.ntp.org","time.nist.gov");lyricLine="WiFi connected";}else lyricLine="WiFi failed";page=HOME;needDraw=true;}
void press(int p){if(millis()-lastPress<160)return;lastPress=millis();if(page==HOME){if(p==BTN_UP)selected=(selected+3)%4;else if(p==BTN_DOWN)selected=(selected+1)%4;else if(p==BTN_PUSH){page=(Page)(selected+1);if(page==WIFI_LIST)scan();}else if(p==BTN_BACK)page=ABOUT;}else if(page==SETTINGS){if(p==BTN_UP)selected=max(0,selected-1);else if(p==BTN_DOWN)selected=min(2,selected+1);else if((p==BTN_LEFT||p==BTN_RIGHT)&&selected==0)fontScale=constrain(fontScale+(p==BTN_RIGHT?1:-1),1,3);else if((p==BTN_LEFT||p==BTN_RIGHT)&&selected==1)colourIndex=(colourIndex+(p==BTN_RIGHT?1:4))%5;else if((p==BTN_PUSH&&selected==2)||p==BTN_BACK)page=HOME;}else if(page==WEATHER){if(p==BTN_BACK)page=HOME;}else if(page==WIFI_LIST){if(p==BTN_UP)selectedWifi=(selectedWifi+wifiCount-1)%max(1,wifiCount);else if(p==BTN_DOWN)selectedWifi=(selectedWifi+1)%max(1,wifiCount);else if(p==BTN_PUSH&&wifiCount){chosenSsid=networks[selectedWifi];passwordText="";page=PASSWORD;}else if(p==BTN_BACK)page=HOME;}else if(page==PASSWORD){if(p==BTN_UP)keyRow=(keyRow+3)%4;else if(p==BTN_LEFT)keyCol=(keyCol+9)%10;else if(p==BTN_RIGHT)keyCol=(keyCol+1)%10;else if(p==BTN_PUSH)passwordText+=keys[keyRow][keyCol];else if(p==BTN_BACK&&passwordText.length())passwordText=passwordText.substring(0,passwordText.length()-1);else if(p==BTN_DOWN)connect();}else if(page==ABOUT&&(p==BTN_BACK||p==BTN_PUSH))page=HOME;needDraw=true;}
void setup(){int b[]={BTN_UP,BTN_DOWN,BTN_LEFT,BTN_RIGHT,BTN_PUSH,BTN_BACK};for(int p:b)pinMode(p,INPUT_PULLUP);SPI.begin(TFT_SCK,-1,TFT_MOSI,TFT_CS);tft.init(240,320);tft.setRotation(0);prefs.begin("lyrics",true);String s=prefs.getString("ssid","");String q=prefs.getString("pass","");prefs.end();if(s.length()){WiFi.begin(s.c_str(),q.c_str());configTime(0,0,"pool.ntp.org","time.nist.gov");}server.on("/lyrics",HTTP_POST,[](){lyricLine=server.arg("plain");server.send(200,"text/plain","ok");needDraw=true;});server.on("/status",HTTP_GET,[](){server.send(200,"application/json",String("{\"wifi\":")+(WiFi.status()==WL_CONNECTED?"true":"false")+"}");});server.begin();}
void loop(){server.handleClient();int p[]={BTN_UP,BTN_DOWN,BTN_LEFT,BTN_RIGHT,BTN_PUSH,BTN_BACK};for(int v:p)if(!digitalRead(v))press(v);draw();delay(20);}