Adopts original FT232RL chipset, provides USB to TTL level, supports 3.3V /8V external power supply and TTL level setting. ^^ Chip integrated internal crystal (default) ^^ Considering the user's use of BitBang, the FT235RL USB TTL is added with an external crystal to make it more stable during high-speed operation. ^^ The measured baud rate can reach 3M.
experimental environment: two FT232 are programmed with FTDI official dll for pair transmission. The user's actual transmission rate may be limited by the serial port software, can not choose 8M. ^^ Pin out 7 signal pins TXD, RXD, RTS, CTS