LiquidCrystal_I2C commands:

[arduino_uno534]

Error:

Arduino:1.8.19 (Windows 11 Insider Preview Build 26080 Canary), Kart:"Arduino Uno"





















C:\Users\subordie\Documents\Arduino\Ardino UNO Dersler\LRT\twoX16_i2c\twoX16_i2c.ino: In function 'void setup()':

twoX16_i2c:7:13: error: no matching function for call to 'LiquidCrystal_I2C::begin()'

   lcd.begin();

             ^

In file included from C:\Users\subordie\Documents\Arduino\Ardino UNO Dersler\LRT\twoX16_i2c\twoX16_i2c.ino:2:0:

C:\Users\subordie\Documents\Arduino\libraries\LiquidCrystal_I2C/LiquidCrystal_I2C.h:58:8: note: candidate: void LiquidCrystal_I2C::begin(uint8_t, uint8_t, uint8_t)

   void begin(uint8_t cols, uint8_t rows, uint8_t charsize = LCD_5x8DOTS );

        ^~~~~

C:\Users\subordie\Documents\Arduino\libraries\LiquidCrystal_I2C/LiquidCrystal_I2C.h:58:8: note:   candidate expects 3 arguments, 0 provided

exit status 1

no matching function for call to 'LiquidCrystal_I2C::begin()'



This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

Using LiquidCrystal_I2C 1.1.1.
Code:

#include <Wire.h>
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16 , 2);
void setup()
{
  lcd.begin();



}

void loop()
{
  lcd.home();
  lcd.print("Hello world!");


}

Worked on LRT. (from turkey, Lezzetli Robot Tarifleri used Arduino IDE 1.6.5 and Windows 8.)
Can anyone solve this to me?

[UKHeliBob]

Welcome to the forum

There are at least 2, probably more, libraries named LiquidCrystal_I2C. My guess would be that you have installed one version and are using commands intended to be used with a different version

Look at the examples for the installed library to see how to use it

[bperrybap]

The error is indicating that begin() does not exist.
i.e. a function called begin with no argument.s
the begin function requires arguments.
i.e.
begin(cols, rows);

Alternatively, most of the LiquidCrystal_I2C libraries also have an init() function that you can call.

lcd.init();

That can be used instead of begin(cols, rows);

--- bill

[arduino_uno534]

already finished XD (i use lcd.init on a video i seed to begin lcd)