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	- Project: "Button Messages"
	- Source Code NOT compiled for: Arduino Uno
	- Source Code created on: 2024-06-07 03:53:06

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
	/* lcd display i2c  20x4   button pin11 INPUT_PULLUP */
	/* LOW menu up  button pin10 INPUT_PULLUP LOW menu */
	/* enter  button pin12 INPUT_PULLUP   LOW  menu down */
	/* startmenu  test1  test2  submenu test1  lol1  lol2 */
	/* sub menu test2  ha1  ha2 */
/****** SYSTEM REQUIREMENT 2 *****/
	/* lcd display i2c  20x4  button pin11 UPLOW menu up */
	/* button pin10 UP LOW menu enter  button pin12UP LOW */
	/* menu down  Temperatur->MaxTemp->code */
	/* ->MinTeamp->code  Durchfluss(Flow)->MaxFlow->code */
	/* ->MinTeamp->code */
/****** END SYSTEM REQUIREMENTS *****/

/****** DEFINITION OF LIBRARIES *****/
#include <EasyButton.h>  //https://github.com/evert-arias/EasyButton
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

/****** FUNCTION PROTOTYPES *****/
void setup(void);
void loop(void);
void onUpButtonPressed();
void onDownButtonPressed();
void onEnterButtonPressed();

/***** DEFINITION OF DIGITAL INPUT PINS *****/
const uint8_t UP_BUTTON_PIN = 11;
const uint8_t DOWN_BUTTON_PIN = 12;
const uint8_t ENTER_BUTTON_PIN = 10;

/****** DEFINITION OF LIBRARIES CLASS INSTANCES*****/
EasyButton upButton(UP_BUTTON_PIN, 35, true, false);   // Initialize EasyButton instance for UP button
EasyButton downButton(DOWN_BUTTON_PIN, 35, true, false); // Initialize EasyButton instance for DOWN button
EasyButton enterButton(ENTER_BUTTON_PIN, 35, true, false); // Initialize EasyButton instance for ENTER button

LiquidCrystal_I2C lcd(0x27, 20, 4); // Set the LCD I2C address to 0x27 for a 20 chars and 4 line display

void setup(void)
{
  // put your setup code here, to run once:
  Serial.begin(115200);

  lcd.init();                      // initialize the lcd 
  lcd.backlight();
  lcd.setCursor(0,0);
  lcd.print("System Initializing");

  Serial.println();
  Serial.println(">>> EasyButton multiple buttons example <<<");

  upButton.begin();
  downButton.begin();
  enterButton.begin();
  
  upButton.onPressed(onUpButtonPressed);
  downButton.onPressed(onDownButtonPressed);
  enterButton.onPressed(onEnterButtonPressed);
}

void loop(void)
{
  // put your main code here, to run repeatedly:
  upButton.read();
  downButton.read();
  enterButton.read();
}

void onUpButtonPressed() {
  Serial.println("Up button pressed");
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Up button pressed");
}

void onDownButtonPressed() {
  Serial.println("Down button pressed");
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Down button pressed");
}

void onEnterButtonPressed() {
  Serial.println("Enter button pressed");
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Enter button pressed");
}

/* END CODE */