How do I get this LCD to work on Proteus?
I'm trying to display the letter "A" on LM016L. I keep switching the E input but I get nothing.


Your current plan will not work.

Although your linked LCD module datasheet appears to be an abbreviated version, it says this LCD module uses the HD44780 controller. That is what you need to research.

For example, although not all LCD modules which claim to use HD44780 commands behave exactly the same, they tend to start in a "display off" state, and need to be sent the correct commands before they will even start to show anything. Therefore you need to research HD44780 initialisation.