git clone https://github.com/Xinyuan-LilyGO/TTGO-T-Display.git
cd TTGO-T-Display
cp -R TFT_eSPI ~/Documents/Arduino/libraries/.

#include <TFT_eSPI.h> 
#include "orbitron20.h"  
TFT_eSPI    tft = TFT_eSPI();         // Create object "tft"
TFT_eSprite img = TFT_eSprite(&tft);

#define gray 0x94B2

const int pwmFreq = 5000;
const int pwmResolution = 8;
const int pwmLedChannelTFT = 0;
int brightnes=80;

uint16_t color2=TFT_WHITE;
uint16_t color1=TFT_BLACK;

void setup() {
  pinMode(35,INPUT_PULLUP);
  pinMode(12,INPUT_PULLUP);
  pinMode(27,INPUT_PULLUP);
  pinMode(26,INPUT_PULLUP);
  pinMode(0,INPUT_PULLUP);
  tft.init();
  tft.fillScreen(TFT_WHITE);
  tft.setRotation(1);
  img.setFreeFont(&Orbitron_Medium_18);
  img.setTextColor(color1,color2);
  img.createSprite(240, 135);
  ledcSetup(pwmLedChannelTFT, pwmFreq, pwmResolution);
  ledcAttachPin(TFT_BL, pwmLedChannelTFT);
  ledcWrite(pwmLedChannelTFT, brightnes);

}

void loop() {
drawS();
}

void drawS()
{
img.setTextColor(color1,color2);
img.fillSprite(color2);
int r=map(analogRead(2),4095,0,0,255); 
int g=map(analogRead(15),4095,0,0,255); 
int b=map(analogRead(13),4095,0,0,255); 

img.drawRect(4,24,132,20,gray);
img.drawRect(4,68,132,20,gray);
img.drawRect(4,112,132,20,gray);

img.drawString("RED: "+String(r),6,0);
img.fillRect(6,26,r/2,16,TFT_RED);
img.drawString("GREEN: "+String(g),6,44);
img.fillRect(6,70,g/2,16,TFT_GREEN);
img.drawString("BLUE: "+String(b),6,88);
img.fillRect(6,114,b/2,16,TFT_BLUE);

if(digitalRead(26)==0)
{
brightnes=map(analogRead(13),4095,0,0,255); 
ledcWrite(pwmLedChannelTFT, brightnes); 
}





 uint16_t chosen=tft.color565(r, g, b);
 img.drawString("COLOR",148,0);
 img.drawString("0x"+String(chosen,HEX),148,90,4);
 img.drawString("BRIGHT: "+String(brightnes),148,118,2);
 img.fillRect(148,24,80,62,chosen);
 img.drawRect(146,22,84,66,gray);

 if(digitalRead(12)==0)
color1=chosen;

 if(digitalRead(27)==0)
color2=chosen;

 if(digitalRead(0)==0)
{ color1=TFT_BLACK; color2=TFT_WHITE;}

 if(digitalRead(35)==0)
{
img.fillScreen(color2);
img.drawString("text:0x"+String(color1,HEX),6,10,4); 
img.drawString("back:0x"+String(color2,HEX),6,30,4); 
img.drawString("select:0x:"+String(chosen,HEX),6,50,4); 
}

img.pushSprite(0,0);
}

#include <TFT_eSPI.h> 
#include "bmp.h"

...

void initScreen(){

  tft.init();
  tft.setRotation(1);
  tft.fillScreen(TFT_BLACK);
  tft.setTextSize(2);
  tft.setTextColor(TFT_GREEN);
  tft.setCursor(0, 0);
  tft.setTextDatum(MC_DATUM);
  tft.setTextSize(1);

  tft.setSwapBytes(true);
  tft.pushImage(0, 0,  240, 135, ttgo);
  espDelay(5000);
}

#include "orbitron10.h" 
#include <TFT_eSPI.h> 
#include "bmp.h"

...

void initScreen(){

  tft.init();
  tft.setRotation(1);
  tft.setTextColor(TFT_GREEN);
  tft.setCursor(0, 0);
  tft.setFreeFont(&Orbitron_Medium_10);

  tft.fillScreen(TFT_BLACK);
  tft.setTextDatum(MC_DATUM);
  tft.drawString("CHARGING",  tft.width() / 2, tft.height() / 2 );
}