| Chip | Key Feature | Driver Availability | |-------------|------------------------------------------|---------------------------| | FTDI FT232R | Widest compatibility, bit-bang mode | Native on all OSes | | CH340/CH341 | Extremely cheap, but counterfeit issues | Windows manual install | | CP2104 | Smaller package, higher baud (2 Mbaud) | Same CP210x driver | | CP2102N | Newer, lower power, crystal-less | Same CP210x driver | | PL2303 | Old but common, many counterfeit clones | Driver issues on Win11 |
Take note of the assigned communication number next to it (e.g., or COM4 ). You will need to select this exact port number in your terminal software (like PuTTY or the Arduino IDE). 💡 Troubleshooting Common Issues cp2103 usb to uart bridge controller drivers
Ensure both ends (PC software and embedded device) agree on baud rate, data bits, parity, and stop bits. Common default: 115200 baud, 8N1 . | Chip | Key Feature | Driver Availability
macOS handles VCP drivers differently. The CP2103 is supported via the Silicon Labs VCP driver. Common default: 115200 baud, 8N1
Right-click the Windows Start Menu button and select . Expand the Ports (COM & LPT) branch. Look for Silicon Labs CP210x USB to UART Bridge .