• Full-Speed USB to Serial Interface
• CH340E USB to TTL converter supporting data rates up to 2 Mbps
• Selectable Logic Voltage
• 3.3V or V_USB logic levels, user-selectable
• USB Type-C Interface
• Supports USB 2.0 communication, providing up to 200mA current output
• Hardware Flow Control
• RTS and CTS lines for hardware flow control
• LED Indicators
• Power LED for V_USB indication, status LED for monitoring
• Compact Design
• 20mm x 32mm PCB, optimized for small form-factor applications
• Cost-Optimized Solution
• Two-layer PCB design for cost-effective manufacturing

The OrtoViaUS01 is ideal for a range of applications, including:

• Embedded system development
• Prototyping with microcontrollers and SoCs
• USB to serial communication debugging
• Low-cost consumer electronics
• Maker and DIY projects
• Data logging systems
• Robotics with TTL-level communication
• Programming and debugging of UART-enabled devices

The OrtoViaUS01 provides a cost-effective solution for basic serial communication between USB 2.0 devices and TTL logic systems. Featuring a USB Type-C connector, this converter is designed for budget-conscious applications where simplicity and reliable performance are essential.

Supporting data rates up to 2 Mbps and operating at 3.3V or 5V logic levels (user-selectable), the OrtoViaUS01 delivers reliable performance in a compact, streamlined package. It is ideal for low-cost development projects, embedded systems, and consumer electronics.

The OrtoViaUS01 schematic and PCB assembly (PCBA) design files, including full manufacturing documentation, are available for licensing. These files have been optimized for production with JLCPCB, specifically targeting their cost-efficient 2-layer PCB process. Component choices have been made to minimize assembly costs. While the design has been successfully validated with JLCPCB as the EMS, customers are responsible for verifying compatibility with their chosen manufacturer. Using an alternative EMS may result in higher costs or require adjustments due to component availability and assembly practices.

It is the customer’s responsibility to ensure that their selected manufacturing service can fabricate and assemble the design in compliance with local regulations and requirements.

Please note: Only design files are provided—no physical products are offered.

All sales of our licensed PCBA designs are handled exclusively through our Patreon page.

A single commercial license covers use of these design files.

• Manufacturing Allowed: You may use the design files to manufacture and sell products
• Modification Allowed: You may modify the design files and incorporate them into your own products.
• No Redistribution: You may not redistribute, repackage, or resell the original design files “as-is” or in minimally modified form.

Other than the restriction on redistributing design files, you are free to use, modify, and commercialize this design without limitation.

Purchasing a license for this product does not entitle you to any free support. Any support provided will be offered on a best-effort basis through available communication channels, and there is no guarantee of a response or resolution.

Paid support options are available for those requiring more dedicated assistance, and details regarding paid support can be provided upon request.

This product is provided "as is" without any express or implied warranties, including but not limited to implied warranties of merchantability and fitness for a particular purpose. The user assumes all responsibility and risk for the use of this product. The creators, manufacturers, and distributors of this product shall not be liable for any direct, indirect, incidental, special, or consequential damages, including but not limited to damage to property, personal injury, loss of profits, or data, arising from the use, misuse, or inability to use the product, even if advised of the possibility of such damages. It is the user’s responsibility to ensure that the product is suitable for their application and complies with any applicable laws, regulations, and safety standards. The creators and distributors do not assume any liability for the accuracy, completeness, or applicability of the information provided in this document or with the product.

By using this product, you agree to these terms and assume all risks associated with its use.

All product names, trademarks, and registered trademarks are the property of their respective owners. Use of any trademarks in this document is for informational purposes only and does not imply endorsement or affiliation with the trademark holders. The mention of third-party products, services, or trademarks is provided solely as a reference, and the owners of such trademarks have not sponsored, authorized, or approved this product or its use.

By using this document and any associated materials, you agree to respect the rights of all trademark holders and acknowledge that any use of trademarks must comply with applicable laws and regulations. For more information on trademark usage and guidelines, please refer to the respective trademark holders' policies and guidelines.