Thanks for the link , I've been watching and I have come to understand that it is a incopatibilidad of the library with the IDE version . I will desistalar my Version 1.6 and I will install 1.0
now I tell you. Thank you very much for the attention you have devoted to me.
In can't solve the issue itself but I know how to go around..
I'm using 1.6.5 with these libraries and everything work like they suppose to..
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
// Set the LCD address to 0x27 for a 20 chars and 4 line display
LiquidCrystal_I2C lcd(0x27, 20, 4);
void setup()
{
lcd.begin();
lcd.print("Hello, world!");
}
void loop()
{
// Do nothing here...
}
If you have multiple wire-libraries on your computer, dispose them and leave only one in the folder \Arduino\hardware\arduino\avr\libraries
The fix for this is quite simple. See the thread that Don pointed to above.
There is a LiquidCrystal_I2C library available through the IDE library manager.
If you are using this library, which had this issue, it was fixed in late 2015.
(Note: There are multiple LiquidCrystal_I2C libraries that are different but all have the same name)
The issue was that the git repository was not properly tagged to make the fix for this library available through the library manager until very recently.
If you are using that LiquidCrystal_I2C library, then you could update your library with a newer version through the library manager.
i using ardiuno uno 16*2 lcd display uploading program hello world with i2c but not show display and iDE version 1.8.10 reinstall 2 time master i2c library install
please solution