> For the complete documentation index, see [llms.txt](https://pekaway.gitbook.io/van-pi/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://pekaway.gitbook.io/van-pi/position/rj45-uart-gps.md).

# RJ45 UART GPS

The RJ45 UART adapter provides a serial connection and 5V power from the VAN PI CORE, enabling the easy connection of a GPS module. However, once a GPS module is connected, the port is occupied, and the Pekaway touchscreen can no longer be used simultaneously. The adapter features a buck converter, with a transmission voltage of 12V and a signal voltage of 3.3V.