## Board design files This directory contains Eagle CAD files as well as schematic PDFs and Gerber exports for board fabrication. The board stackup is good enough for either OSH Park 4-layer, or JLCPCB 4-layer with controlled impedance (JLC2313). ### Latest Board Revision 6.1.0 is latest and the directory also contains a reference design for a breakout to help with development and debugging. The breakout features a CH330N USB-to-UART adapter IC as well as a TX "on/off" switch so you can get some ideas about how to interface to the unit from your own system.