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MAX3232 RS232 to TTL Serial Port Converter Module DB9 Connector MAX232 For Arduino

1~10PCS TTL Turn To RS485 Module 485 To Serial UART Level Mutual Conversion Hardware Automatic Flow Control Power Supply Module

Microcontroller Serial to Parallel Pin IO Expansion Module 74HC595 Output Port Expansion 3 to 24pin LED control

1~10PCS EGBO YX6300 YX5300 UART Control Serial Module MP3 Music Player Module For Arduino/AVR/ARM/PIC CF

CP2102 MICRO USB/TYPE-C USB to UART TTL Module 6Pin Serial Converter UART STC Replace FT232

Microcontroller Serial to Parallel Pin IO Expansion Module 74HC595 Output Port Expansion 3 to 24pin LED control

TTL to RS232 module/UART to 232/serial port conversion/3.3 or 5V power supply

HL-340 HL340 New USB to RS232 COM Port Serial PDA FT232  9 pin DB9 Adapter support WIN11 Compatible CH340

1-12PCS TTL To RS485 485 To Serial UART Level Mutual Conversion Hardware Automatic Control Power Supply Module 3.3V 5V

CH340N module CH340 Downloader USB-to-TTL download cable Single-chip microcomputer Serial port download