I recently got an Arduino I wanted to try to display things on my LCD,
though the regular method of connecting the LCD to the Arduino takes up lots of cables, so I wanted to use the LCD I2C to reduce the cable amounts.
I connected everything as it's supposed to be and went to the web to download the New Liquid Crystal library downloaded on my IDE.
I downloaded it and tried to install it on my IDE, but once I ran the example code it said the library didn't exist and showed this:
Arduino: 1.8.12 (Windows 10), Board: "Arduino Uno"
Temp_Sketch:12:10: fatal error: LiquidCrystal_I2C.h: No such file or directory
compilation terminated.
exit status 1
LiquidCrystal_I2C.h: No such file or directory
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
Does anyone have any idea how I can get it to work?
I appreciate it for reading all of it.
Even after you fix the error it may still be an uphill battle to get your LCD to work with the LiquidCrystal library.
For an I2C LCD display to work, the I2C address and the I2C backpack to LCD pin mapping must be correct. If the library default settings for either or both are not correct the LCD will not work. You can try to figure out the right pin mapping and use an I2C scanner to find the address, but if you install and use the hd44780 library that is done automatically by the library.
Install the hd44780 library. The hd44780 library is the best available for I2C LCDs. The library is available in the Library Manager. Go to Library Manager (in the IDE menus, Sketch, Include Libraries, Manage Libraries) and in the Topics dropdown choose Display and in the Filter your search box enter hd44780. Select and install the hd44780 library by Bill Perry.
The class that you want to use is the hd44780_I2Cexp class. There are examples to show how to use the library. The nice thing about the hd44780 library is that it will autodetect the I2C address and the I2C backpack to LCD pin mapping.
In the examples, there is a diagnostic sketch that will help us to help you if you still have trouble with the display. Run the diagnostic sketch and post the results.