FT232 FT232BL FT232RL USB 2.0 to TTL Download Cable Serial Adapter1712
Main chip: FT232BL. RXD: Connect to MCU.TX (Signal : MCU.TX FT232 PC.RX). TXD: Connect to MCU.RX (Signal : MCU.RX Less than Less than FT232 Less than Less than PC.TX). : Connect to MCU. (Signal Direction: MCU. ).