Crux35 ELRS V2


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NOTICED: SPI ELRS version Crux35/Crux35 HDZERO/Crux35 HD were discontinued.

The new ELRS V2 version comes with CrazyF411 ELRS AIO flight controller built-in UART ExpressLRS receiver.

CRUX35/CRUX35 HD is an ultra-lightweight 3.5Inch FPV Freestyle FPV Racing Drone, the weight of the whole drone is only 87g for the analog version and 108g for the digital HD version. The Crux35 serials drone use Happymodel EX1404 high-efficiency motor and HQPROP 3.5-inch three-blade propeller to ensure the largest thrust-to-weight ratio under the most efficient premise, which can bring you a smooth Freestyle flying experience.

The HD version is equipped with CADDXFPV Nebula and Vista HD image transmission system. The analog version is equipped with CADDXFPV Ant ant camera.

The receiver version can be UART ExpressLRS and SPI Frsky (S-FHSS compatible) for choose.

ExpressLRS is the most popular RC link system by now , it could performance very well with Crux35 and Crux35 HD.

Ultra-lightweight 3.5-inch BNF FPV Freestyle Drone
HD video transmission and analog video transmission are optional
Integrated ExpressLRS UART receiver or Frsky SPI D8/D16 receiver
High efficiency EX1404 power system
Can be equipped with Naked Gopro or SMO4K
Support 3-4S battery 4S 750mah battery is recommended, maximum support 4S 1100mah

Brand: Happymodel
Product name: Crux35 / Crux35 HDZERO / Crux35 HD
Wheelbase: 150mm
Weight: Crux35 87gram
Crux35 HD 108gram
Size: 130mmx130mmx45mm(without propellers)
Receiver option: UART ExpressLRS 2.4GHz
SPI Frsky D8/D16 (S-FHSS compatible)
Camera and VTX option:
HD DJI version Nebula+Vista or Runcam Link Wasp Nano
HDZERO version RunCam Nano HDZero Camera + HDZERO WHOOP VTX
Analog version Ant+OVX303 or OVX306 VTX
Flying time: 9min~15min 4s 750mah battery

Package includes:

Item Name Crux35 Crux35 HDZERO Crux35 HD DJI
Crux35 Frame 1 1 1
Option1: ELRS X1 FC with SPI ELRS(Discontinued) 1 1 1
Option2:CrazyF411 ELRS FC with UART ELRS
Option3: CrazyF411 FRSKY FC SPI Frsky
CaddxFPV Digital HD Camera Nebula Nano Kit

Or Runcam Link Wasp Nano

0 0 1
HDZERO Whoop VTX+ Rucam HDZERO Camera 0 1 0
Analog FPV Camera Caddx Ant 1 0 0
Happymodel OVX303 5.8G analog VTX 1 0 0
Happymodel EX1404 KV3500 brushless motor 4 4 4
HQProp T3.5X2X3Grey (4cw+4ccw) 1 1 1
Screw Driver 1 1 1
Buckle Velcro for battery 1 1 1
Motor Mode: EX1404
KV options: KV3500
Stator Diamter:14mm
Stator Length:4mm
Shaft Diameter: Φ1.5mm
Motor Dimension(Dia.*Len):Φ15mm*15mm
Propellers Propeller Diameter: 3.5 inch
Pitch : 2
Blades : 3
Material : Poly Carbonate
Weight : 1.5g
Hub Diameter : 10mm
Hub Thickness:4.7mm
Shaft :1.9/1.5/1.9mm
Adaptor Rings : NO
Flight controller 

(UART ELRS Version)

CrazybeeF411 ELRS

MCU:STM32F411CEU6 (100MHZ, 512K FLASH)
Sensor: ICM42688P or BMI270 (SPI Control)
Mount pattern: 25.5×25.5 M2
Power supply: 2-4S Lipo battery
Built-in 20A Blheli_s ESC each
Built-in Betaflight OSD(SPI Control)
Built-in UART ExpressLRS 2.4GHz receiver
Built-in 5V 1.5A BEC
Flight controller firmware target: CRAZYBEEF4DX
Flight controller 

(SPI ELRS Version)

ELRS X1 (Discontinued)

MCU:STM32F411CEU6 (100MHZ, 512K FLASH)
Sensor: MPU-6000(SPI connection)
Mount pattern: 20×20 M2Size:32*28*9mm
Power supply: 2-4S Lipo battery
Built-in 12A Blheli_s ESC each
Built-in Betaflight OSD(SPI Control)
Built-in SPI ExpressLRS 2.4GHz receiver
Built-in 5V 1A BEC
Flight controller firmware target: CRAZYBEEF4SX1280
Flight controller
(Frsky version)CrazybeeF411 FRSKY
MCU:STM32F411CEU6 (100MHZ, 512K FLASH)
Sensor: BMI270 or ICM42688P(SPI connection)
Board size: 28.5 * 28.5MM
Power supply: 2-4S battery input (DC 8V-17V)
Built-in 20A(each) Blheli_S 4in1 ESC Dshot600 ready
Built-in Frsky D8/D16 SPI receiverBuilt-in 2.4G Power Amplification
Built-in Betaflight OSD(SPI Control)
Built-in Current meter
Built-in 5V 1.5A BEC
Built-in voltage detectionFirmware target: MATEKF411RX
Onboard 4in1 ESC MCU upgraded to EFM8BB21
Power supply: 2-4S LiPo/LiPo HVCurrent: 12A continuous peak 15A (3 seconds)
Support BLHeliSuite programmable
Factory firmware: F-H-40
Default protocol: DSHOT300
Onboard UART ExpressLRS 2.4GHz Receiver( UART ELRS version) Packet Rate option: 25Hz/50Hz/150Hz/250Hz/500Hz
RF Frequency: 2.4GHzAntenna plug: IPEX
Telemetry output Power: <12dBm
Receiver protocol:  CRSF
Default firmware version: ExpressLRS V3.0.1
Onboard SPI Frsky 2.4GHz receiver (Frsky Version) SPI BUS receiver
Frsky D8/D16/EU-LBT/, Futaba S-FHSS switchable on Betaflight
Channels: 8ch/16chDual antenna
Failsafe support
No ground interference ( Transmitter and receiver 1 m from the ground): 400m
CaddxFPV Digital HD Camera Nebula Nano Kit

(Digital HD version)

Weight(camera included]: 24g
Antenna: 2.3g
Dimensions: Vista Kit 30×29×13mm
Camera 14×14×21mm
Operating Frequency: 5.725-5.850GHz
Transmitter Power[EIRP]: FCC/SRRC/MIC:<30dBm
Min.latencylend-to-end) 720p 60fps:32ms
Max.Transmission Distance FcC/SRRC: 4km
lnput Power: 7.4-26.4V
Power Output: 25mW/200mW/500mW/700mw
Goggles : Work with DJl goggles
Sensor: 1/3”CMOS
Shutter: Rolling
LHCP antenna
Caddx ANT 1200tvl camera

(Analog version)

Image Sensor: 1/3″ CMOS Sensor
Horizontal Resolution: 1200 TVL
TV System: NTSC or PAL
IMAGE: 16:9 or 4:3
Synchronization: Internal
Electronic Shutter: PAL: 1/50~100,000; NTSC: 1/60~100,000
S/N Ratio : >52dB (AGC OFF)
Video Output: CVBS
Lens: 1.8mm
Min. Illumination: 0.001Lux@F1.2
Auto Gain Control: YES
WDR: Global WDR
Dimensions: 14*14mm(with bracket to 19*19mm)
Wide Power Input: DC 3.7-18V
Work Temperature: -20℃~+60℃
Weight: 2g (N.W.)
OVX303 5.8Ghz VTX
(Analog version)
Model: OVX303
Frequency: 5.8G 40CH
Transmitting Power: 0/RCE/25mw/100mw/300mw
Power supply: DC 5V
Current (5v): <650ma (300mw)
Weight: 1.5gram without antenna
OVX306 5.8Ghz VTX
(Analog version)
Model: OVX306
Frequency: 5.8G 40CH
Transmitting Power: 0/RCE/25mw/100mw/300mw
Power supply: DC 5V
Current (5v): <650ma (300mw)
Weight: 1.5gram without antenna
RunCam Nano HDZero(HDZERO version)
Model: Racer
SKU: HDZ3203
Lens: FOV D150 degree
Power: 450mA@3.3v
Digital: 1280*720@60fps
HDZero Whoop(TX5S.1)(HDZERO version)
Model: HDZero Whoop
SKU: HDZ3110
Frequency: 5.8G
Resolution Default: 1280*720@60fps
RF power: 25mw/200mw
RF Connector: U.FL
Interface: 4 lane MIPI CSI YUV422
Video Connector: 20 Position 0.30mm Pitch
Size: 32.5mm x 32.5mm x 7mm
Weight: 5.4g
Power:  410mA@12V
Mounting: 25.5mm*25.5mm,M2 clearance hole

Additional information


Analog, DJI, HDZero


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