Ultralight 1S Toothpick FPV Drone with ExpressLRS | Crux3 ELRS: Low-Latency Control, Powerful 1202.5 Motors, 4.5min Flight Time
- Product id:Crux3 1S ELRS Drone
- Color:black
- The fabric:plastic
- Size:
Discover the Happymodel Crux3 1S ELRS, the ultimate ultralight FPV drone. Weighing just 40g, it delivers powerful performance with its EX1202.5 11500KV motors and integrated ExpressLRS for ultra-low latency control. Enjoy up to 4.5 minutes of flight time, seamless compatibility with HD cameras like the Caddx Peanut, and a complete, no-solder AIO setup ready to fly out of the box. Perfect for dynamic racing and freestyle.
1. Ultimate ExpressLRS Performance for Pinpoint Control
Experience the gold standard in radio link technology built right in. The integrated SPI ExpressLRS 2.4GHz receiver offers ultra-low latency and rock-solid, long-range connectivity. With selectable packet rates up to 500Hz, it delivers the instantaneous, failsafe response demanded by racers and freestyle pilots, giving you absolute confidence for every dive, gap, and trick.
2. Powerful 1S Punch-Out in a 40g Featherweight Frame
Don't let the size fool you. The ultralight 40g "toothpick" design, powered by the all-new EX1202.5 11500KV motors and Gemfan 75mm props, generates surprising thrust and agility. This unique combination provides the exhilarating "punch" and recovery of heavier drones while maximizing efficiency for extended, dynamic flight sessions on a single 1S battery.
3. Unbeatable Flight Time: Up to 4.5 Minutes of Action
Maximize your airtime. Optimized for efficiency, the Crux3 ELRS delivers exceptional flight durations of up to 4.5 minutes with a standard 1S 650mAh battery when carrying a lightweight HD camera like the Caddx Peanut. This means more practice, more filming, and more fun per charge compared to typical high-performance micro drones.
4. Ready for HD: Seamless Upgrade to Caddx Peanut or Insta360 GO2
This is your perfect HD cinewhoop platform. We include a dedicated 3D-printed canopy, allowing you to easily mount popular sub-20g HD cameras like the Caddx FPv Peanut or Insta360 GO2. Instantly transform your setup from lightweight analog FPV to a stunning HD recording rig without any DIY hassle or added weight penalties.
5. Complete, No-Solder AIO Package - Fly Straight Out of the Box
Get airborne in minutes, not hours. Every critical component is pre-integrated into a robust All-In-One (AIO) board: a 5A 4-in-1 ESC, F4 flight controller, 5.8G 200mW VTX, and the ExpressLRS receiver. It comes fully assembled with the Caddx Ant camera installed, includes all tools, and is tuned and ready to bind and fly. Perfect for both beginners and experts.







ExpressLRS is currently the most popular remote control link system. It features low latency and a high refresh rate, and its link quality is highly reliable. We are now about to release the 1s Crux3 equipped with the ExpressLRS RC link system. The new Crux3 elrs features an EX1202.5 11500 motor, paired with a Qianfeng 75mm two-blade propeller, ensuring ample power output even with the 1s power supply. It supports CaddxFPV Peanut and Insta360 GO2 (not included), and with a CaddxFPV Peanut camera, the flight time using a 1s 650mAh battery is 4 minutes and 30 seconds.
Features:
40g 1s Brushless Toothpick Drone
AIO Flight Controller with ELRS Receiver and 5.8G VTX
CADDX Ant Camera
Brand New 1202.5 KV11500 Brushless Motors
Recommended Battery: 1s 450mAh/650mAh/660mAh/720mAh
Compatible with CaddxFPV Peanut and Insta360 GO2
Flight Time with CaddxFPV Peanut on 1s 650mAh Battery: 4.5 minutes
Product Name: Crux3 1S ELRS
Wheelbase: 115mm
Dimensions: 97mm x 97mm x 35mm (excluding propellers)
Weight: 40g (excluding battery)
Package Includes:
Crux3 Frame and Canopy *1
ELRS F4 2G4 Flight Controller with Built-in SPI ExpressLRS 2.4G Receiver *1
Happymodel EX1202.5 KV11500 Brushless motors *4
Gemfan 75mm dual-blade propeller (4cw+4ccw) *1
Caddx Ant 1200TVL Global WDR with OSD 2g Ultralight Nano FPV Camera *1
5.8G 25mw~200mw 40ch VTX (built-in flight controller) *1
Screwdriver *1
Propeller disassembly tool *1
3D printed canopy for Insta360 GO2 and CaddxFPV Peanut
Happymodel tote bag *1
Motor mode: EX1202.5 KV11500
Configuration: 9N12P
Stator diameter: 12mm
Stator length: 2.5mm
Shaft diameter: Φ1.5mm
Motor dimensions (Dia.*Len): Φ14mm*14.5mm
Weight (g): 4.4g
Cell count (Lipo): 1S
Propeller Gemfan 75mm
Center Thickness: 5mm
Support Diameter: 75mm
Center Hole Diameter: 1.5mm
Pitch: 0.9in
Flight Controller Microcontroller: STM32F411CEU6 (100MHZ, 512K FLASH)
Sensor: MPU-6000 (SPI connection)
Compatible with original pertussis size
Power Supply: 1S battery input (DC 2.9V-4.35V)
Built-in 5A (each) Blheli_S 4in1 ESC Dshot600 ready
Built-in Betaflight OSD (SPI control)
Built-in 5.8G VTX
Built-in SPI ExpressLRS 2.4GHz receiver
Built-in 5V 1A BECFlight controller
Firmware Target: CRAZYBEEF4SX1280
Onboard 4in1 ESC MCU upgraded to EFM8BB21
Power Supply: 1S LiPo/LiPo HV
Current: 5A continuous peak 6A (3 seconds)
Supports BLHeliSuite programmable
Factory Firmware: O_H_5_REV16_7.HEX
Default Protocol: DSHOT300
Onboard SPI ExpressLRS 2.4GHz Receiver Packet Rate Options: 25Hz/50Hz/150Hz/250Hz/500Hz
RF Frequency: 2.4GHz
Antenna: Patch Antenna
Telemetry Output Power: <12dBm
Flight Controller Receiver Protocol: CRSF
Can be tethered to all ExpressLRS 2.4GHz TX modules; ExpressLRS firmware requires version 1.0.0 or later.
Onboard 5.8g VTX Output Power: Switchable from 25mw to 200mw
Frequency: 40CH
Input Voltage: 3.3V 5.5V
Current Consumption: 300mA (Type)
Frequency: 5.8GHz 5 bands 40 channels
With competition bands
Smart audio ready
Caddx ANT 1200tvl Camera Image Sensor: 1/3" CMOS Sensor
Horizontal Resolution: 1200 TVL
TV Standard: NTSC or PAL
Image Aspect Ratio: 16:9 or 4:3
Sync: Internal
Electronic Shutter: PAL: 1/50~100,000; NTSC: 1/60~100,000
Signal-to-Noise Ratio: >52dB (AGC Off)
Video Output: CVBS
Lens: 1.8mm
Minimum Illumination: 0.001Lux@F1.2
Automatic Gain Control: Yes
BLC: Yes
WDR: Global WDR
Dynamic Noise Reduction: 3D Dynamic Noise Reduction
Dimensions: 14*14mm (19*19mm with bracket)
Wide Power Input: DC 3.7-18V
Operating Temperature: -20℃~+60℃
Weight: 2g (Net Weight)