90 lines
2.2 KiB
C++
Executable File
90 lines
2.2 KiB
C++
Executable File
/*
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Tests de la carte ramps
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* Note: On most Arduino boards, there is already an LED on the board
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connected to pin 13, so you don't need any extra components for this example.
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DISPLAY ON Arduino Mega2560 VIA RAMPS
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* LCD RS pin to digital pin 16
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* LCD Enable pin to digital pin 17
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* LCD D4 pin to digital pin 23
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* LCD D5 pin to digital pin 25
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* LCD D6 pin to digital pin 27
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* LCD D7 pin to digital pin 29
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* LCD R/W pin to ground
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*/
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// include the library code for LCD display:
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#include <LiquidCrystal.h>
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// constants won't change. They're used here to
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// set pin numbers:
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const int led1 = 13; // the number of the standard led
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const int button = 41; // the number of the pushbutton pin
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const int speakerPin = 37; // buzzer connected
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//LCD RS pin to digital pin 16
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const int lcdrs=16;
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//LCD Enable pin to digital pin 17
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const int lcde=17;
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//LCD D4 pin to digital pin 23
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const int lcdd4=23;
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//LCD D5 pin to digital pin 25
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const int lcdd5=25;
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//LCD D6 pin to digital pin 27
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const int lcdd6=27;
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//LCD D7 pin to digital pin 29
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const int lcdd7=29;
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// say ON is alighted and OFF is not
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// led are lighted when pin is HIGH
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const int ON=HIGH;
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const int OFF=LOW;
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const int FALSE=LOW;
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const int TRUE=HIGH;
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//variable to keep state of display done
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int done=FALSE;
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// initialize the library with the numbers of the interface pins
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// create object: lcd (available as global object)
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LiquidCrystal lcd(16,17,23,25,27,29);
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void setup() {
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pinMode(button, INPUT); // button is input
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digitalWrite(button,HIGH); // need pull up resistor: HIGH/TRUE when not activated, LOW/FALSE when activated
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// set up the LCD's number of columns and rows:
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lcd.begin(20, 4);
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// shutdown LED
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digitalWrite(led1, OFF);
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// clear LCD display
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lcd.clear();
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// wait 2 sec
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delay(2000);
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}
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void loop() {
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// write once to avoid flickering of display
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if (!done) {
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lcd.clear();
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digitalWrite(led1, OFF);
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displayLcd(0,0,"hello");
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displayLcd(1,1,"salut");
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done=true;
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}
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if (!digitalRead(button)) {
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done=false;
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lcd.clear();
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delay(5);
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digitalWrite(led1, ON);
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displayLcd(0,0,"Bouton !");
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while (!digitalRead(button)) {};
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}
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}
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void displayLcd(int c, int l, String t) {
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lcd.setCursor(c,l);
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lcd.print(t);
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}
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