I am working on a project and I use several PIC18F26K83's for this project. For communication between PIC's I use UART. Now I also need to send data with RS232 to the user. As I have understood the main difference between UART and RS-232 is voltage levels. And with PIC I cannot supply proper voltage level that is required for RS232. Because of that UART to RS232 converter's look like a must. (i.e. MAX232) I have two questions.
Using UART to RS232 chips is the only option in this case? Are there any alternative ways?
I am planning to send UART data directly to the UART to RS232 converter chip. I do not know how they work, code wise do I need to change anything? Can I directly put UART tx data to the receive pin of these chips? Thanks beforehand.