FrSky R-XSR 2.4 GHz 16ch ACCST Micro Receiver S-BUS and CPPM

FrSky R-XSR 2.4 GHz 16ch ACCST Micro Receiver S-BUS and CPPM
Model : R-XSR
Manufacturer : FrSky
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The FrSky ultra mini R-XSR receiver is the evolution of FrSky full range XSR receiver. The R-XSR is a standalone receiver with all the functions of XSR including Smart Port Telemetry. In addition, it’s almost 1/3 size and 1/3 weight of XSR receiver! Full diversity is integrated into this tiny receiver and the IPEX connector makes it very convenient for antenna replacement.

R-XSR has had a bug that prevents Lua scripts from working. But a new firmware has been released that fixes this issue. You can download it here. Here's Oscar Liang's instructions for how to flash a FrSky receiver. If your receiver is already soldered into your quad, you can also flash firmware via serialpassthrough, but that's a more advanced topic.

Side Note: A version of the R-XSR is coming out soon that will have an un-inverted SmartPort output pin. No more uninvert hacks for you F4 users!  We will get stock as soon as we can!


  • Type: FrSky ACCST
  • Channels: 1-16 for S-BUS and 1-8 for CPPM
  • Diversity: Has Diversity Antennas and processors 
  • Band: 2.4GHz
  • Dimensions: 16mm x 11mm x 5.4mm (L x W x H)
  • Weight: 1.5 grams
  • Input Voltage: 4V~10V
  • Compatability: FrSky X-series Module & X9D & X9DP &X9E & X12S in D16 mode.(R-XSR does not work with the D-series module)
  • Operating Current: 70mA@5V


  • 1 receiver
  • 1 cable


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