- Reliable (no CH340 or FTDI232RL clones)
- 3V3 logic but 5V tolerant (no switching needed)
- On board 3V3 regulator (500 mA)
- Over current protection (suitable for development)
- Connector with key (so you can make idiot-proof cables) but DuPont friendly
- Both micro and mini USB connector (they are on opposite side of the board so you cannot use both in same time, but you will have more probability to find correct cable… you know Murphys Law)
| Pin | Dir. | Description |
|---|---|---|
| 1 | 3.3 V output (max 500 mA)¹ | |
| 2 | OUT | Tx Data Enable² |
| 3 | GND | |
| 4 | 5 V output (max 500 mA)¹ | |
| 5 | IN | Rx |
| 6 | IN | DSR |
| 7 | OUT | Tx |
| 8 | IN | CTS |
| 9 | OUT | DTR |
| 10 | OUT | RTS |
¹ 500 mA is total maximum for 5 V and 3.3 V output.
² Indicate transition for half-duplex communication (e.g. for RS-485).
For all PIN and LED functionality you need to configure FT231XS converter. There is template for FT Prog in ft_prog directory.