KiCAD schematic of a tested, built, known-good FTDI cable pinout. For use with the ubiquitously common RS-232 UART adapter cables made by Future Technology Devices International, Ltd.
an FTDI-style USB adapter should work perfectly well, and be less complicated. The MAX232 is specified to work at up to 115,200 baud. I've had no problems using this module at that speed, with a ...