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EMAX F3 FEMTO Flight Controller
EMAX F3 FEMTO Flight Controller
EMAX F3 FEMTO Flight Controller
EMAX F3 FEMTO Flight Controller

EMAX F3 FEMTO Flight Controller

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This is a simple base to mount an EMAX Femto F3 Flight controller PDB to 20x20mm FC hole spacing on a micro FPV frame.


  • The size is tiny. it’s not just an FC. It’s also a PDB
  • This FC is designed for the micro femtoquad. It’s 20mm by 20mm and has no mounting holes. 
  • Thus you’ll have to mount it using double sided tape.
  • Which honestly is a good thing because that’s an effective method of soft mounting a FC anyway. 
  • The FC even has an LC filtered 5v regulator for your camera and VTx which is outstanding given it’s size. 
  • It’s also got LED and buzzer pads, VBat, and is capable of using 2-4s LiPo batteries.
  • This FC should be perfect for those sub 150mm sized micro quads (which don’t produce much noise to begin with). 


  • Brand name: Emax
  • Item name: Femto Micro F3 Flight Controller
  • Size: 20mm*20mm
  • Weight: 2.2g
  • Buzzer support
  • STM32F303 CPU
  • 2-6S LiPo battery
  • Integrated 5V/3A BEC
  • 2.0 mm pin headers
  • 80A Current tolerance (PDB)
  • Integrated Battery monitoring
  • Dedicated PPM receiver input
  • BLHeli Passthrough ready(connect BLheli suite)
  • Supports direct connection of 3.3v Spektrum Satellite receivers
  • Telemetry support (frsky telemetry, smartport, and HoTT telemetry)
  • MPU9250 accelerometer/gyro/compass (connected via SPI)
  • Dedicated Sbus and serial RX with 5v ,Spektrum 1024/2048, SBUS, XBUS, SumD and SumH RX with built-in inverter
  • Dedicated output for programmable LEDs - great for orientation, racing and night flying. (Currently mutually exclusive with the Transponder)
  • Use all the features all the time; e.g. Connect your USB + SmartPort + SBus + LED Strip + Battery Monitoring + 4 motors - all at the same time!
  • ?UART3 (RX3)
  • Use for Spektrum Satellite RX, Spektrum 1024/2048, SBUS, XBUS, SumD and SumH RX, etc.
  • ?UART2/PPM - Serial RX or PPM RX + Telemetry
  • Use RX2 as PPM receiver. Use TX2 as telemetry output when using PPM


  • 1 x Emax Femto Micro F3 Flight Controller
  • 2x Servo Cables
  • 1x JST Cables

* F3 Fento Manual for download