LCD without pot for Arduino with menu using rotary encoder

Here's some sample code (note: will not compile) just to give you an idea:

1. /*
2. * Arduino LCD
3. */
5. #include <LiquidCrystal.h>
6. 
   
7. /* Menu */
8. #define MOVECURSOR 9 // Basically the same thing as const [whatever]
9. const int contrast = 20; // min. PWM value
10. const int menuTimeout = 10000; // time to timeout in a menu when user doesn't do anything.
11. 
    
12. LiquidCrystal lcd(1, 2, 4, 5, 6, 7); // Arduino pins ~ creates LC object.
13. // Parameters: (rs, enable, d4, d5, d6, d7) // LCD pins
15. void setup() { // Setups things like bit rate or to change pins to output
16. lcd.begin(totCols,totRows); // (width, height)
17. }
19. void loop() { // Iterates forever once loaded on Arduino
20. lcd.setCursor(0,0);
21. lcd.print("Effective Altruism movement");
22. }

Probably eventually going to need to use this:

1. lcd.noCursor();
2. lcd.clear();

See electronics.stackexchange.com/a/111275/59133 with:
playground.arduino.cc/Main/TimerPWMCheatsheet
Extra - forum.arduino.cc/index.php?topic=207772.0

Toggle backlight link.

Bonus - Tinkercad keyboard + LCD
------------------------------PINOUT------------------------------

------------------------------MENU------------------------------

Delta_G recommends using his menu: 

• github.com/delta-G/REBL_UI

If using, this post helps: 

• https://forum.arduino.cc/index.php?topic=358066.msg3841709#msg3841709

My LCD screen is a 4x20 (rows by columns) with the same pinouts from the picture and schematic above. Here is my edits of Delta_G's library: 

• github.com/adamaero/REBL_UI

Here is the discussion on it: 

• https://forum.arduino.cc/index.php?topic=561064.30