Features Original FT232RNL onboard Supports Mac, Linux, Android, WinCE, Windows 7/8/8.1/10/11... 3 power mode : 5V output, 3.3V output, or powered by target board (3.3V-5V) 3 LEDs: TXD LED, RXD LED, POWER LED Functional Pins TXD, RXD, RTS#, CTS# : connected to the onboard soldered pinheaders The other Pins : accessable on the drill holes (separate pinheaders are also provided for easily connecting to user system, the pitch is compatible with bread boards) How to Use In the case of working with a MCU: VCCIO ↔ 3.3V or 5V output (the module is powered from USB, onboard jumper should be shorted to 3.3V or 5V) GND ↔ GND TXD ↔ MCU.RX (signal direction: MCU.RX FT232 >> PC.RX) RTS ↔ MCU.CTS (signal direction: MCU.CTS FT232 >> PC.CTS) Package: FT232 USB UART Board x1 5-pin male pinheader & 5-pin female pinheader x2 6-pin custom connector jumper wire x1