#include "SPI.h"
#include "Adafruit_GFX.h"
#include "Adafruit_ILI9341.h"

// For the Adafruit shield, these are the default.
#define TFT_DC 12
#define TFT_CS1 8
#define TFT_CS2 7
#define TFT_CS3 4

// Use hardware SPI (on Uno, #13, #12, #11) and the above for CS/DC
Adafruit_ILI9341 tft1 = Adafruit_ILI9341(TFT_CS1, TFT_DC);
Adafruit_ILI9341 tft2 = Adafruit_ILI9341(TFT_CS2, TFT_DC);
Adafruit_ILI9341 tft3 = Adafruit_ILI9341(TFT_CS3, TFT_DC);

void setup() {
  Serial.begin(9600);
  Serial.println("ILI9341 Test!"); 
 
  tft1.begin();
  tft2.begin();
  tft3.begin();
 
 

}

void loop() {
  String label1 = "Label 1";
  String value1 = "93.50";
  String label2 = "Label A";
  String value2 = "100.5";

  String value3 = String(micros());

  testText1(label1, value1, label2, value2);
  testText2(label1, value3);
  testText3();
  
}

void testText1(String label1, String value1, String label2, String value2) {
  tft1.fillScreen(ILI9341_BLACK);
  //unsigned long start = micros();
  tft1.setCursor(0, 0);
  tft1.setTextColor(ILI9341_WHITE);  tft1.setTextSize(3);
  tft1.println(label1);
  tft1.setTextColor(ILI9341_WHITE);  tft1.setTextSize(6);
  tft1.println(value1);
  tft1.setTextColor(ILI9341_WHITE);  tft1.setTextSize(3);
  tft1.println(label2);
  tft1.setTextColor(ILI9341_WHITE);  tft1.setTextSize(6);
  tft1.println(value2);
}


void testText2(String label1, String value1) {
  tft2.fillScreen(ILI9341_BLACK);
  //unsigned long start = micros();
  tft2.setCursor(0, 0);
  tft2.setTextColor(ILI9341_RED);  tft2.setTextSize(3);
  tft2.println("Screen 2");
  tft2.setTextColor(ILI9341_WHITE);  tft1.setTextSize(6);
  tft2.println(value1);
}

void testText3() {
  tft3.fillScreen(ILI9341_BLACK);
  //unsigned long start = micros();
  tft3.setCursor(0, 0);
  tft3.setTextColor(ILI9341_BLUE);  tft3.setTextSize(5);
  tft3.println("Screen 3");
}


// Standard two parameters per screen
// Trend graph?
// Bar graph?
// Analog sweep?