User Manual

F3 Femto1/3

F3FemtoManual‐V1.2
(SPRACINGF3EVOFirmware)

Features
z STM32F303CPU
z MPU9250accelerometer/gyro/compass(connectedviaSPI)
z 2‐6SLiPobattery
z Integrated5V/3ABEC
z DedicatedSbusandserialRXwith5v,Spektrum1024/2048,SBUS,XBUS,SumDandSumHRXwithbuilt‐in
inverter
z 6Supportsdirectconnectionof3.3vSpektrumSatellitereceivers
z Telemetrysupport
(frskytelemetry,smartport,andHoTTtelemetry)
z DedicatedPPMreceiverinput
z Buzzersupport
z DedicatedoutputforprogrammableLEDs‐greatfororientation,racingandnightflying.(Currentlymutually
exclusivewiththeTransponder)
z BLHeliPassthroughready（connectBLhelisuite）
z 2.0mmpinheaders
z 80ACurrenttolerance(PDB)

z IntegratedBatterymonitoring
z 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!
z 20x20mmboard
z Weight2.2grams
※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.