USB to TTL CH340G module #K2 011045

FT232RL FT232 USB TO TTL 5V 3.3V Serial Adapter Module #K2 010804

USB to RS232 COM Port Serial 9 pin Cable Adapter #K2 050053 or GXRA0139-00

USB 2.0 to TTL RS485 Serial Converter Adapter FTDI FT232RL SN75176 double function double protection #K7 012789

TTL turn RS485 module 485 to serial UART level mutual conversion hardware automatic flow control #X11 12276

FT232RL USB to Serial TTL Board Support 5V 3.3V 1.8V Level Converter Module #V12 012661

MCP2515 CAN Bus Driver Module Board TJA1050 Receiver SPI For 51 MCU ARM Controller Interface Module #N7 012611

Mini RS232 MAX3232 to TTL converter #K2 01010910

USB To RS232 TTL Converter PL2303 HXA #K2 010104