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#include <SPI.h>
#include <TFT.h>            // Arduino TFT library

#define cs   10
#define dc   9
#define rst  8

TFT screen = TFT(cs, dc, rst);

void setup() {
  // initialize the screen
  screen.begin();

  // make the background black
  screen.background(0,0,0);

  // turn the fill off
  screen.noFill();

  // set the stroke color to white
  screen.stroke(255,255,255);

  // draw a rectangle in the center of screen
  screen.line(screen.width()/2-5, screen.height()/2-5, 10, 10);
}

void loop() {

}