Interfacing PIC16F627A to PC via RS-232 (MAX232 & USART)

the_merovingian · Aug 9, 2009

rs232 max232

I'm trying to interface a PIC16F627A MCU to a PC (running Linux) via an RS-232 serial interface.

I've seen a few circuit designs using the MAX232 IC to convert the TTL levels into those suitable for transmission over the RS-232.

I've seen a couple designs for the converter:
http://www.scienceprog.com/alternatives-of-max232-in-low-budget-projects/
and
http://sodoityourself.com/max232-serial-level-converter/

Would either (or both) of these be suitable?

Thanks in advance.

nandhu015 · Aug 11, 2009

rs232 interfacing

Hai

Better try max232 circuit first, I am using both max232 and transistor version and both working fine.

Regards
Nandhu

eXnol · Aug 9, 2010

Both will work. If I were you, I would get rid of those fancy LEDs.

Privacy & Transparency