Olimex BB-CH340T USB to Serial Converter

USB to Serial Converter with CH340T IC, suitable for breadboarding.

OSHW design released under Apache 2.0 License

Features:

• Implements CH340
• Fully open hardware design
• USB mini connector - USB 2.0 Full Speed compatible
• Serial interface with variable baud rate - 50 bps to 2Mbps
• Breadboard-friendly - 4 pin 0.1" header
• Extracts power from the USB - can provide either up to [email protected] or up to [email protected]
• 3.3V or 5V output controlled by an SMT jumper - soldered by default to 3.3V
• Serial datalines (RXD and TXD) kept at same voltage levels as the selected voltage output
• PCB dimensions: (1000x1050)mil ~ (25.5x26.5)mm

Documents:

• CH340 datasheet

Hardware:

• KiCAD schematic and board files
• Schematic in PDF format

Software:

• Driver for Windows (Linux doesn't need drivers and works automatically)