How to use RS232 port in Delta?

userHead DangGun 2023-05-03 12:32:04 294 Views1 Replies

I am using LattePanda 3 Delta.

 

For RS232 communication, I wired as follows according to the manual.

 

 

But I don't see 'COM1' port in windows.

 

 

I tested it by connecting to 'COM4', but I couldn't send or receive any data.

 

 

 

I searched the forum and found a post saying to use "RS232 to TTL Converter".

( https://www.lattepanda.com/forum/topic/315352 )
 

Is "RS232 to TTL Converter" mandatory?

Or are there more actions I need to take?