PixRacer Serial MappingΒΆ

Many different names are given to the serial hardware on PixRacer where ArduPilot is concerned. This document attempts to supply a mapping between them.

DataSheet NuttX Userland PX4_HAL ParamPrefix HW Label Def Role Notes
  ? ? SERIAL0_ USB Console Micro-USB Plug
UART4 ? ? SERIAL3_ GPS GPS  
USART2 ? ? SERIAL1_ TELEM1 MAVLink  
USART3 ? ? SERIAL2_ TELEM2 MAVLink  
UART8 ? ? SERIAL4_ GPS GPS  
UART7 ? ? ? DEBUG Debug  
USART1 ? ? ? ESP ESP8266 bl serial
USART8 ? ? ? FRS FRSky invertible