FrSky R-XSR pinout
- GND – ground wire
- +3,5-10V – positive voltage supply. R-XSR is rated up to 10V and powering it from 5V is the best option
- SmartPort – inverted S.Port pin (standard) – can be used directly with STM32F3 and F7 series
- SBUS – SBUS protocol output
- SBUS Input – for redundancy function only
- Uninverted SmartPort – uninverted S.Port pin (standard is inverted) – can be used directly all flight controllers on any serial port
- Uninverted SBUS – uninverted SBUS protocol output (standard is inverted)
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