ExpressLRS/ELRS 2.4GHz Vario Receiver

ExpressLRS firmware, 2.4GHz, 7x PWM outputs, Variometer sensor integrated.



  • configurator 1.5.x or older,  DIY 2.4 GHz –> DIY_2400_RX_ESP8285_SX1280
  • configurator 1.6.x or newer,  Generic targets used as a base 2.4 GHz  –> Generic ESP8285 2.4Ghz RX


  • Generic targets used as a base –> 2.4GHz Receiver –> Generic ESP8285 2.4Ghz RX

Baro "Alt" readout

  • Start with EdgeTX 2.7.1/OpenTX 2.3.15 and ExpressLRS 2.5,  Baro Alt telemetry ID is supported in CRSF protocol.
  • You need to update Transmitter, ExpressLRS  TX module and Receiver all to latest verison.
  • and update CRSF-PWM-V to V2.3.0 or newer.

Bottom PCB variant

  • There is another bottom CRSF-PWM PCB version in market. VBat pad is nearby CH “7”,   CH”8″ is just a pad at bottom side.  The silk print labelling are correct on both versions.  Just follow the labelling to wire Vbat voltage and CH8 signal.