Hello, i have a problem on displaying things on the arduino's lcd. It only shows white boxes instead of the text i ask for. My code is this: #include // includes the LiquidCrystal Library LiquidCrystal lcd(1, 2, 4, 5, 6, 7); // Creates an LCD object. Parameters: (rs, enable, d4, d5, d6, d7) void setup() { lcd.begin(16,2); // Initializes the interface to the LCD screen, and specifies the dimensions (width and height) of the display } } void loop() { lcd.print("Arduino"); // Prints "Arduino" on the LCD delay(3000); // 3 seconds delay lcd.setCursor(2,1); // Sets the location at which subsequent text written to the LCD will be displayed lcd.print("LCD Tutorial"); delay(3000); lcd.clear(); // Clears the display lcd.blink(); //Displays the blinking LCD cursor delay(4000); lcd.setCursor(7,1); delay(3000); lcd.noBlink(); // Turns off the blinking LCD cursor lcd.cursor(); // Displays an underscore (line) at the position to which the next character will be written delay(4000); lcd.noCursor(); // Hides the LCD cursor lcd.clear(); // Clears the LCD screen } and my wiring is this: [Capture] I tried the example that i found here: https://howtomechatronics.com/tutorials/arduino/lcd-tutorial/?utm_content=cmp-true What do i have to change to fix it ? Thank you!

Hi, @spiros99 To add code please click this link; [image] How to get the best out of this forum IDE 1.x See also FAQ - Arduino Forum for general rules on forum behaviour and etiquette. Hello, Welcome to the Arduino Forum. This guide explains how to get the best out of this forum. Please read and follow the instructions below. Being new here you might think this is having rules for the sake of rules, but that is not the case. If you don’t follow the guidelines all that happens is there is a long exchange of posts while we try to get you to tell us what we need in order to help you, which is fru… Have you adjusted the pot connected to the LCD? Can you please post an image(s) of your project? So we can see your component layout. Thanks.. Tom.. :smiley: :+1: :coffee: :australia:

This is an image of my project, its a little hard to see everything clearly, but its connecected excactly like the diagram that i posted earlier. [348361651_783345083283120_1983088133605433277_n] If i change the value of the pot it only shows or hides the white boxes of the lcd. Nothing else changes...

Invest in an I²C adapter for the LCD.

#include // includes the LiquidCrystal Library LiquidCrystal lcd(1, 2, 4, 5, 6, 7); // Creates an LCD object. Parameters: (rs, enable, d4, d5, d6, d7) void setup() { lcd.begin(16,2); // Initializes the interface to the LCD screen, and specifies the dimensions (width and height) of the display } } void loop() { lcd.print("Arduino"); // Prints "Arduino" on the LCD delay(3000); // 3 seconds delay lcd.setCursor(2,1); // Sets the location at which subsequent text written to the LCD will be displayed lcd.print("LCD Tutorial"); delay(3000); lcd.clear(); // Clears the display lcd.blink(); //Displays the blinking LCD cursor delay(4000); lcd.setCursor(7,1); delay(3000); lcd.noBlink(); // Turns off the blinking LCD cursor lcd.cursor(); // Displays an underscore (line) at the position to which the next character will be written delay(4000); lcd.noCursor(); // Hides the LCD cursor lcd.clear(); // Clears the LCD screen }

how is this going to affect my problem? Is this able to make the lcd work properly?

You can't use pin 1 #include // includes the LiquidCrystal Library LiquidCrystal lcd(1, 2, 4, 5, 6, 7); // Creates an LCD object. Parameters: (rs, enable, d4, d5, d6, d7) void setup() { lcd.begin(16,2); // Initializes the interface to the LCD screen, and specifies the dimensions (width and height) of the display } } void loop() { lcd.print("Arduino"); // Prints "Arduino" on the LCD delay(3000); // 3 seconds delay lcd.setCursor(2,1); // Sets the location at which subsequent text written to the LCD will be displayed lcd.print("LCD Tutorial"); delay(3000); lcd.clear(); // Clears the display lcd.blink(); //Displays the blinking LCD cursor delay(4000); lcd.setCursor(7,1); delay(3000); lcd.noBlink(); // Turns off the blinking LCD cursor lcd.cursor(); // Displays an underscore (line) at the position to which the next character will be written delay(4000); lcd.noCursor(); // Hides the LCD cursor lcd.clear(); // Clears the LCD screen }

[image] spiros99: how is this going to affect my problem? Is this able to make the lcd work properly? I²C is easier to connect, less prone to wiring issues and use fewer pins

[image] 2112: You can't use pin 1 You can as long as you never use or initialize Serial.

ok i will try to use one! Thank you

Arduino lcd display

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TomGeorge June 5, 2023, 9:25am 2

Hi, @spiros99

To add code please click this link;

Have you adjusted the pot connected to the LCD?

Can you please post an image(s) of your project?
So we can see your component layout.

Thanks.. Tom..

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Arduino lcd display

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