TFT_Mesure

//  ******************************************************************************
//  ***    TFT_Mesure : Exemple de programme d’utilisation de l’afficheur TFT                            ***
//  ***    L’afficheur affiche l’équivalent d’une jauge d’un voltage venant d’un pin analogique        ***
//  *******************************************************************************
 
#include <Adafruit_GFX.h>       // include Adafruit graphics library
#include <Adafruit_ILI9341.h>   // include Adafruit ILI9341 TFT library

#define ENTREE    A0

#define TFT_CS    8      // TFT CS  pin is connected to arduino pin 8
#define TFT_RST   9      // TFT RST pin is connected to arduino pin 9
#define TFT_DC    10     // TFT DC  pin is connected to arduino pin 10
// Initialisation de la librairie ILI9341 TFT
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_RST);
 
void setup() {
  Serial.begin(9600);
  Serial.println(“Jauge TFT”);
 
  tft.begin();
  tft.drawLine(20,20,220,20,ILI9341_GREEN);
  tft.drawLine(20,21,220,21,ILI9341_GREEN);
  tft.drawLine(20,20,20,60,ILI9341_GREEN);
  tft.drawLine(21,20,21,60,ILI9341_GREEN);
  tft.drawLine(20,60,220,60, ILI9341_GREEN);
  tft.drawLine(20,59,220,59, ILI9341_GREEN);
  tft.drawLine(220,20,220,60, ILI9341_GREEN);
  tft.drawLine(219,20,219,60, ILI9341_GREEN); 

  pinMode(ENTREE, INPUT);
}
 
 
void loop(void) {
    int nValue;
    int nVal_Aff;
    int nCpt;

    nValue = analogRead(ENTREE);
    nVal_Aff = map(nValue, 0, 1023, 20,219);
    Serial.print(“Valeur lue : “);
    Serial.println(nValue);

    for(nCpt=20; nCpt < nVal_Aff; nCpt ++)
      tft.drawLine (nCpt, 21, nCpt, 59, ILI9341_GREEN);
    for(;nCpt < 219; nCpt ++)
      tft.drawLine(nCpt, 21,nCpt, 59, ILI9341_BLACK);
}