Introduction FLYDRAGONpro gyro uses the open source Rotorflight firmware which is based on Betaflight 4 5 enjoying all the powerful features of the Betaflight platform as well as many new features added for helicopters Rotorflight also borrows ideas and codes from Heliflight3D Specification Brand SteamModel V2 2 Gyroscope RF FLYDRAGONPro Rotorphlight SystemMaster STM32F722RET6Gyroscope MPU 6000 ICM 42688 PBlack box W25N01G 128MB Barometer SPL06 001 I2C2 Colored lights WS2812BBuzzer 5V active buzzerUSB Type CSerial port UART2 UART3 UART5I2C I2C1ADC ADC BATT 0 62V ADC BEC 0 30V ADC BUS 0 8V Servo channel CH1 CH2 CH3 TAILSpeed input RPMAuxiliary channel AUXBEC voltage 5 18V5V power output 5V 2ABuilt in receiver ELRS dual antenna receiver 2 4G serial port 1 External receiver TBS CRSF Futabas S BUS Futabas S BUS2 FrSky F PORT FrSky F PORT2 FrSky FBUS Spektrum DSM 1024 Spektrum DSM 2048 Spektrum DSMSRXL Spektrum DSMSRXL2 ImmersionRC GHOST Graupner SUMD Graupner SUMH Flysky IBUS JR XBUS Mode A JR XBUS Mode B JR XBUSIRJ01 Jeti EXBUS CPPMESC protocols PWM ONESHOT125 ONESHOT42 MULTISHOT BRUSHED DSHOT150 DSHOT300 DSHOT600 PROSHOT CASTLEESC feedback support BLHeli32 Hobbywing Platinum V4 FlyFun V5 Hobbywing Platinum V5 Scorpion Kontronik OMPHobby ZTW APDOpenYGE FLYROTOR Graupner XDFLYDimensions 45x27x14 5mmWeight 27gPackage included 1x V2 2 Gyroscope RF FLYDRAGONPro Rotorphlight System