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This is a USB Serial Adaptor. Using jumper wires it can be used for Arduino programming (using RTS for reset) or similar boards.
The board uses through-hole connections on both the micro-USB and 6-way 0.1" header socket for a more robust product over the surface mount alone.
This module can only be used with systems using 5V, connecting to those using higher/lower voltages may result in damage. Click here for a 3.3V version.
The IC used in the module enumerates as a Communication Device Class (CDC) device which modern (Win10/Linux/Mac OS X) operating systems have built-in drivers for.
| Pinout | Description |
|---|---|
| RTS | Request to send |
| RX | Receive (connect to remote TX) |
| TX | Transmit (connect to remote RX) |
| 5V | 5V supply |
| CTS | Clear to send |
| GND | Ground |
The following baud rates are supported
| Baud rate | Miss rate (%) |
|---|---|
| 2,400 | 0.16 |
| 4,800 | 0.16 |
| 9,600 | 0.04 |
| 19,200 | 0.04 |
| 38,400 | 0.16 |
| 57,600 | 0.16 |
| 115,200 | 0.16 |
| 230,400 | 0.16 |
| 460,800 | 0.79 |
| 1,700,000 | 0.84 |
| 2,300,000 | 0.62 |
| 3,400,000 | 0.84 |







