USB-UART (RS232 TTL) converter module FT232B FTDI Compatible with USB1.1, USB2.0, WinXP, Vista, Win7, Win10 32 bit / 64bit MiniUSB and TTL connector To program Arduino board using this converter, connect as follows: FTDI pin -> Arduino pin GND -> GND CTS -> not connected VCC -> 5V TX0 ->RX (D0) RX1 ->TX (D1 DTR -> GND Hold Arduino Reset button until the upload begins. https://elecena.pl/product/22626822/ft232b-basic-ftdi-converter-usb-to-ttl-programmer-arduino 2023-02-23 https://elecena.pl/product/22626822/ft232b-basic-ftdi-converter-usb-to-ttl-programmer-arduino 2025-10-28