Universal Serial Adapter Rev 1 (Second version) (USB-C, UART, RS232)

 ABNielsen.com Universal Serial Adapter

The ABNielsen.com Universal Serial Adapter is a versatile and fully assembled adapter designed for engineers and developers who need to interface USB-C, RS232, and TTL systems. This open-source adapter features pre-installed ICs and connectors, providing a robust foundation for embedded system development, diagnostics, and prototyping. Some advanced features require soldering or modifications to the PCB for full customization.

Note: USB Connector, IC's are assembled - headers and dsub9 is not, but are included with purchase. A minimum of 7 jumpers of random colors are included for configuration with this product. Cables, enclosures, etc are not included. 

Gender changers and cables are available:
https://www.imania.dk/samlesaet-hobbyelektronik-og-ic-er-dsub-9-rs-232-kabel-1m.htm

https://www.imania.dk/samlesaet-hobbyelektronik-og-ic-er-dsub-9-koenskifter-rs-232.htm

Video:

Key Features:

• USB-C to RS232 Interface: Includes a USB-C (female) connector and a DSUB9 RS232 (male) port, enabling seamless communication between modern USB-C devices and legacy RS232 systems.
• TTL Signal Breakouts: Provides access to TTL RX, TX, and control signals for easy integration with UART-based systems and external circuits.
• Fully Assembled: All critical components, including WCH CH340G USB-to-UART and SP3243 TTL-to-RS232 ICs, are pre-installed, offering plug-and-play functionality right out of the box.
• Polarity Configuration with Jumpers: RS232 RX, TX, and control signal polarities can be switched using pre-installed 2.54mm headers and jumpers:
  • Straight connection: Place the jumpers horizontally.
  • Crossed connection: Place the jumpers vertically.
• 3.3V Linear Regulator: Integrated 3.3V linear regulator for stable power delivery to external components or circuits.
• USB-C Line Breakouts: USB-C data lines are broken out for developers who need direct access to modern USB signaling.
• Open-Source Design: Designed using KiCAD 8, all design files are open-source and available on GitHub, allowing users to customize, modify, and contribute to the project.
• Customization Options: While the adapter comes pre-assembled, advanced users can modify the PCB, solder additional components, or cut traces to further tailor the board for specific needs.

Important Notes:

• Open-Source: As a fully open-source product, the design files are freely available for download, enabling full customization and future modifications.
• Professional-Grade Tool: While pre-assembled and ready to use, advanced modifications such as soldering and cutting the PCB are required for full feature customization.
• Not a Consumer Product: This is a development tool intended for use by experienced engineers and developers familiar with hardware modification.

Applications:

Ideal for embedded system developers, prototyping, and debugging applications that require communication between USB-C devices and legacy RS232 hardware. The ABNielsen.com Universal Serial Adapter is a powerful tool for those working on custom designs or complex integrations.

Disclaimer: This product is fully assembled but does not include enclosures, cables, or other accessories. All design files are available on GitHub for further customization: https://github.com/AndersBNielsen/Universal-Serial-Adapter