With this adapter from Delock you can connect a serial device to the GPIO interface of your Raspberry Pi via the 4-pin pin header connector (RX and TX) using the included cable. Then configure your system according to the requirement. Technical data: - Connections: - 1x Sub-D 9 Pin Socket RS-232 - 1x 4 Pin Pin Header - Supported baud rate up to 230 Kb/s - Level shifter from RS-232 3.3 V to 5 V on Raspberry Pi - Supported input voltage: 2.7 ... 5,25 V - Dimensions (LxWxH): approx. 48 x 43 x 16 mm - OS independent, no driver installation required System requirements: - one free pin header connector Package contents: - adapter - Cable Pin Header 4 Pin &rt; 5 Pin https://elecena.pl/product/9696537/65628-raspberry-pi-converter-gpio-to-serial 2017-08-05 https://elecena.pl/product/9696537/65628-raspberry-pi-converter-gpio-to-serial 2018-01-31 https://elecena.pl/product/9696537/65628-raspberry-pi-converter-gpio-to-serial 2021-05-21 https://elecena.pl/product/9696537/65628-raspberry-pi-converter-gpio-to-serial 2022-01-06 https://elecena.pl/product/9696537/65628-raspberry-pi-converter-gpio-to-serial 2022-05-19 https://elecena.pl/product/9696537/65628-raspberry-pi-converter-gpio-to-serial 2022-11-07 https://elecena.pl/product/9696537/65628-raspberry-pi-converter-gpio-to-serial 2023-04-14 https://elecena.pl/product/9696537/65628-raspberry-pi-converter-gpio-to-serial 2023-08-07 https://elecena.pl/product/9696537/65628-raspberry-pi-converter-gpio-to-serial 2025-02-08