Introduction:

TheCrazyF411ELRSflightcontrollercomeswithintegratedUART2.4GHzExpressLRSreceiverand20ABlheli_sESC(Bluejayfirmwarepre-installed)whichcouldsupport2-4s.BiggerMosfetcouldsupporthighto20Acurrentswouldbebetterfor2-4StoothpickdroneorlongrangeFPVdrone.Andbecausethe2.4GHzExpressLRSreceiverisequippedwiththeSX1280radiofrequencychipwithhighsensitivity,highpacketrateandlowlatency,thisflightcontrolleristheonethatallRace/Freestylepilotsneeded.Thebuilt-inELRSreceiverisUARTcommunicationwithMCU,itsthesamelikeHappymodelEP1whichyoucanupdatefirmwarebybetaflightpass-throughorWIFI,verysimple.ThedefaultfirmwareisELRSV3.0.1.ThisflightcontrollerwouldbeusedforCrux35toinsteadELRSX1flightcontroller.

Specification:

Brand: Happymodel

Model: CrazyF411ELRS

Item Name: F4 Flight Controller AIO 20A ESC UART 2.4G ELRS Receiver

Mountpattern:25.525.5M2

Size:32*28*9mm

Flight Controller

MCU:STM32F411CEU6(100MHZ,512KFLASH)
Sensor:ICM42688PorBMI270(SPIControl)

Powersupply:2-4SLipobattery
Built-in20ABlheli_sESCeach
Built-inBetaflightOSD(SPIControl)
Built-inUARTExpressLRS2.4GHzreceiver
Built-in5V1.5ABEC
Flightcontrollerfirmwaretarget:CRAZYBEEF4DX

Onboard 4in1 ESC MCUupgradedtoEFM8BB21
Powersupply:2-4SLiPo/LiPoHV(7v/17v)
Currents:20Acontinuouspeak25A(5seconds)
SupportBLHeliSuiteprogrammable
Factoryfirmware:Bluejay0.18.1Firmwaretarget:F_H_40_48_v0.18.1
Defaultprotocol:DSHOT150/DSHOT300/DSHOT600 OnboardUARTExpressLRS2.4GHzReceiver PacketRateoption:25Hz/50Hz/150Hz/250Hz/500Hz
RFFrequency:2.4GHzAntennaplug:IPEX
TelemetryoutputPower:<12dBm
Receiverprotocol:CRSF
Defaultfirmwareversion:ExpressLRSV3.0.1 OnboardvoltageandAmperagemeterssettings Voltagemeterscalesetting110
Amperagemeterscalesetting470

Bindingprocedure:
1. SupplypowertotheflightcontrollerbyplugUSB,waituntilthegreenLEDontheFCisoff,immediatelyturnoffthepower,andthenrepeatagaintheabovesteps.WhentheFCispoweredonforthethirdtime,thegreenLEDlightwillstarttodouble-flash,whichmeansthattheRXentersthebindingmode
2. PleasemakesureyourExpressLRStxmodulefirmwareisv3.x.x.AndgotoExpressLRS.luafromTOOLSmenuofyourradiotransmitter.Thenhit[Bind]tobindingwiththeonboardExpressLRSreceiver.ThegreenLEDshouldblinkingslowlyfirstthenturntosolid,thatmeansbindingwassuccessfully.Ifthegreenledstillkeepdoubleflashafterbinding,pleasechangeModelMatchtabvaluefromofftoonorfromontooff

ReceiverLEDstatusmeanings:
GreenLEDsolidmeansbindsuccessfulorRClinkestablished;GreenLEDdouble-flashmeansgetintobindmode;GreenLEDflashslowlymeansnoRCsignalinputfromTXmodule;GreenLEDcontinuousflashfastmeansExpressLRSwifienabled.

Bind successful

Bind mode

No RC Input

Wifi mode