Hello, i am very beginner to programming and i have been tinkering with basic sketches in the Arduino IDE examples. I want to combine two sketches. I want to use the button sketch and LCD “hello world” sketch.
Basically, i want to whenever a button is pressed light an led and print on the LCD “LED on” or if it not pressed then i want it to say on the LCD “LED off”.
I tried my best to put everything together in the IDE but i am not sure i put everything in the correct format. Unfortunately, i lost my old LCD screen, so i don not have a way to physically test it but i want to know from an experienced programmer if i did it correctly. ( the sketch does compile by the way)
#include <LiquidCrystal.h>
const int buttonPin = 9;
int buttonState = 0;
const int ledPin = 8;
const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
void setup() {
pinMode(ledPin, OUTPUT);
pinMode(buttonPin, INPUT);
lcd.begin(16, 2);
}
void loop() {
buttonState = digitalRead(buttonPin);
if (buttonState == HIGH) {
digitalWrite(ledPin, HIGH);
lcd.print("LED on!");
} else {
digitalWrite(ledPin, LOW);
lcd.print("LED off");
}
lcd.setCursor(0, 1);
lcd.print(millis() / 1000);
}