// Pins SCLK and MOSI are fixed in hardware, and pin 10 (or 53)
// must be an output
//#define sclk 13 // for MEGAs use pin 52
//#define mosi 11 // for MEGAs use pin 51
#define cs 10 // for MEGAs you probably want this to be pin 53
#define dc 9
#define rst 8 // you can also connect this to the Arduino reset
// Color definitions
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
#include <ST7735.h>
#include <SPI.h>
// Option 1: use any pins but a little slower
//ST7735 tft = ST7735(cs, dc, mosi, sclk, rst);
// Option 2: must use the hardware SPI pins
// (for UNO thats sclk = 13 and sid = 11) and pin 10 must be
// an output. This is much faster - also required if you want
// to use the microSD card (see the image drawing example)
ST7735 tft = ST7735(cs, dc, rst);
Also im oberen Code die Pin 10 durch Pin 53 ersetzen?
Tut mir leid für diese simplen Fragen, Stecke nicht so in dem Thema drinn und bin blutiger Anfänger...