Happymodel Larva X HD: Toothpick & TinyWhoop

Happymodel Larva X quadcopter

Currently, there are two major design approaches regarding small FPV racing drones, the Happymodel Larva X HD seems to fit for both of them. It can be conveniently converted from a Toothpick into a TinyWhoop.

Each arm of the 125mm size carbon fiber frame is equipped with an EX1203 motor. The Larva X HD is compatible with 2.5 and 3″  propellers.

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The on-board Caddx Baby Turtle FPV camera features integrated DVR (1080@60fps recording) and angle adjustment. The real-time image transmission is achieved using a 5.8G VTX with 40 channels and adjustable broadcast power. According to your needs, you can toggle between 25 and 200mW even remotely, thanks to the SmartAudio feature.

Happymodel Larva X HD features & specs

  • 2 in 1 design – it can be conveniently converted from Toothpick to TinyWhoop;
  • 125mm size carbon fiber frame w/ removable blade protectors and protective canopy;
  • 2.5/3 inch propeller compatible;
  • Crazybee F4FR PRO flight controller;
  • Onboard 12A 4in1 ESC;
  • EX1203 high efficiency brushless motors
  • Multiple radio options (Frsky SPI D8/XM+/RXSR, FlySkpy SPI, DSMX/DSM2 or TBS CRSF Nano);
  • 5.8G 40CH 25-200mW VTX;
  • Caddx Baby Turtle Camera with 1080p@60fps DVR;
  • 2-3 LIPO compatible.

Convertible design: Toothpick or TinyWhoop

Larva X HD drone main parts details

Larva X HD main parts

Crazybee F4FR PRO Flight controller specs

  • Frsky SPI RX version: CRAZYBEE F4FR PRO V3.0 Firmware target: CrazybeeF4FR;
  • Flysky SPI RX version: CRAZYBEE F4FS PRO V3.0 Firmware target: CrazybeeF4FS;
  • External RX version: CRAZYBEE F4 PRO V3.0 Firmware target: CrazybeeF4DX;
  • MCU: STM32F411CEU6 (100MHZ, 512K FLASH);
  • Sensor: MPU-6000(SPI connection);
  • Power supply: 2-4S battery input (DC 7-17V);
  • Built-in 10A(each) Blheli_S 4in1 ESC Dshot600 ready;
  • Could add external receiver on the FC board;
  • Built-in Betaflight OSD (SPI Control);
  • Built-in Current meter Max 70A;
  • Current meter scale set to 470;
  • Built-in 5V 1A BEC;
  • Built-in voltage detection;
  • Board Size: 28.5x 28.5mm.

Onboard 12A 4in1 ESC specs

  • MCU upgraded to EFM8BB21;
  • Power supply: 2-4S LiPo/LiPo HV (7v/17v);
  • Current: 10A continuous peak 12A (5 seconds);
  • Support BLHeliSuite programmable;
  • Factory firmware: F_H_40_REV16_7.HEX;
  • Default protocol: DSHOT600.

FPV transmitter specs

  • Frequency: 5.8GHz 5bands 40 channels (including raceband);
  • Output power: 25~200mw switchable;
  • Input voltage: 3.3V 5.5V;
  • Current consumption: 300mA;
  • Antenna: Micro UXII Antenna;
  • Smartaudio ready;
  • Weight: 3 grams.

EX1203 6200KV Motor specs

  • Configuration: 9N12P;
  • Stator Diamter: 12mm;
  • Stator Length:3mm;
  • Shaft Diameter: Φ1.5mm;
  • No.of Cells: 2-3S Lipo.
  • Motor Dimension: (Dia.*Len): Φ15x5mm;
  • Weight: 4.7 grams.

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