/* Plotter mit TFT ILI9341
 Modifikation von https://wokwi.com/arduino/projects/307567963154678338
*/

#include <Adafruit_ILI9341.h>

#define TFT_CS   9
#define TFT_DC   10
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC);

#define WIDTH 320
#define HEIGHT 240

void messung_1() {
  analogWrite(5,225);
  delay(100);
  unsigned int startzeit = millis();
  for (int x = 0; x < WIDTH; x++) {
    //int mw = analogRead(5)/10;
    int mw = digitalRead(4)*40;
    tft.drawPixel( mw+20, x, ILI9341_YELLOW);
    //Serial.println(mw);
  }
  unsigned int endezeit = millis();
  Serial.println("Messdauer: " + String(endezeit-startzeit) + " ms");
}
int mw[WIDTH];
void messung_2() {

  analogWrite(5,128);
  delay(100);
  unsigned int startzeit = millis();
  for (int x = 0; x < WIDTH; x++) {
    //int mw = analogRead(5)/10;
    mw[x] = digitalRead(4)*40;
  }
  unsigned int endezeit = millis();
  Serial.println("Messdauer: " + String(endezeit-startzeit) + " ms");

  for (int x = 0; x < WIDTH; x++) {
    tft.drawPixel( mw[x]+20, x, ILI9341_YELLOW);
  }


}

void setup(void) {
  pinMode(4, INPUT);
  tft.begin(); Serial.begin(115200);
  tft.setRotation(4);
  tft.fillScreen(ILI9341_BLACK);
  //tft.drawLine( 0, 0, HEIGHT, WIDTH, ILI9341_RED);
  tft.drawLine( 0, 0, HEIGHT, 0, ILI9341_YELLOW);
  tft.drawLine( 0, 0, 0, WIDTH, ILI9341_YELLOW);
  //messung_1();
  messung_2();
}

void loop() {

}