RS232 To TTL Converter Module MAX3232 Communication Interface Adaptor :Elecrow bazaar, Make your making Electronic modules projects easy

This module can be used to convert the RS232 voltage of PC to TTL voltage that used by microcontroller. Directly plug the DB9 connector into your PC then you can communicate with the microcontrollers using the Serial port. It applies to various f platforms including Arduino / AVR / ARM. For Arduino, please also note that there is already a UART2USB connection, you just need this module if you want more serial connection to your computer.