250mAh LiPo battery including 500mA USB charger

250mAh LiPo battery


  • Operating Temperature: 0~45°C (Charging) / 0~60°C (Discharging)
  • Connector: Molex 51005-2P (Pin 1 positive)

Electrical specification

  • Capacity: 250mAh
  • Nominal voltage: 3.7 V (1 Cell)
  • Max discharge: 15C
  • Charge: 2C

Mechanical specifications

  • Weight: 7.1g
  • Size (WxHxD): 20x7x30mm (not including cable)

LiPo battery charger


  • 500mA single-cell Li-Po battery charger
  • Charging indicator
  • Connection points for chaining of multiple chargers

Package Contents

  • 1 x LiPo battery charger
  • 1 x 250mAh LiPo battery

500mA LiPo USB charger

Use the Bitcraze battery charger to always have your spare batteries full to maximize your flight time. If you’re a bit handy with a soldering iron you can even solder multiple chargers together for multi-battery charging. 



  • 500mA single-cell Li-Po battery charger
  • Charging indicator
  • Connection points for chaining of multiple chargers

Package Contents

  • 1 x LiPo battery charger 

Crazyradio PA 2.4 GHz USB dongle

Crazyradio PA is a long range open USB radio dongle based on the nRF24LU1+ from Nordic Semiconductor. It features a 20dBm power amplifier, LNA and comes pre-programmed with Crazyflie compatible firmware. The power amplifier boosts the range, giving a range up to 1km (line of sight) together with the Crazyflie 2.X and up to 2km Crazyradio PA to Crazyradio PA (line of sight).

The Crazyradio PA is not only for usage together with the Crazyflie and Crazyflie 2.X. Since it's an open project with firmware written from scratch and a Python API for usage it's great building block for systems that require longer range than WiFi and doesn't have the same requirements for bandwidth. The hardware comes shipped with the latest firmware as well as a bootloader that enables firmware upgrades via USB without any additional hardware needed.

The Crazyflie PA is compatible with the first generation of the Crazyflie, but will not give the same range increase as with the Crazyflie 2.X.


  •  Radio power amplifier giving 20dBm output power
  •  > 1km range LOS with Crazyflie 2.X (best case scenario)
  •  2x5 2.54mm header for prototyping (not mounted)
  •  Hardware support for PPM
  •  Same mechanical footprint as the first generation Crazyradio
  •  Open source firmware
  •  Firmware upgrade via USB
  •  Low latency

Package contents

  • 1 x Crazyradio PA
  • 1 x Duck antenna 2dBi

Debug adapter

One of our goals is to make development with the Crazyflie 2.X as easy

as possible. Due to the small size of the platform there are limitations

in what connectors we can have and therefore we designed a debug-adapter

kit that makes connecting a debugger to either of the MCUs a lot

easier, by converting the connector pinouts to standard JTAG and SWD



  • Includes everything needed to easily debug the MCUs (STM32F4 and nRF51)
  • Multiple debug pinouts supported (including 20-pin JTAG and 10-pin Cortex debug)

Package contents

  • 1 x Crazyflie 2.X debug adapter
  • 1 x nRF51 debug connector
  • 1 x Nylon screw and nut for nRF51 debug connector
  • 1 x 6-pin debug cable for connecting to the Crazyflie 2.X

Lighthouse V2 base station

The Lighthouse V2 base station is used to enable on-board positioning on the Crazyflie together with the Lighthouse positioning deck. It comes with a power adapter with detachable plugs for internationalisation. 


  • Enables on-board positioning for the Crazyflie
  • 1/4' standard attachment
  • 3 meter power chord
  • Wall mount


  • Max range: 5 meters
  • Contains SteamVR Base Station 2.0 (V003450-00-A)

Mechanical specifications


  • 1/4' mounting screw in bottom and back of the base station
  • Weight: 266g
  • Size (WxHxD): 80x74x63mm

Power adapter

  • 3 meter chord
  • Power plug adapters for EU/US/UK/JP/AU
  • Weight: 240g
  • Size (WxHxD): 40x64x34mm (without cable and plug)

Wall mount

  • Height: 10 cm
  • Base diameter: 5,7 cm
  • Weight: 44 g

Package contents

  • 1 x SteamVR Base Station 2.0
  • 1 x 12V DC adapter with 3 meter cord (including adapters for US/EU/JP/UK/AU)
  • 1 x Wall mount with 1/4' mounting screw including screws for attachment to the wall

Reflective marker kit 6.5mm

Super-spherical markers from Qualisys. The markers are high quality, threaded markers that can be used with the Motion capture marker deck, or stand alone.

The markers are designed for maximum roundness and with their solid build, they are more durable than their hollow counterparts.

The markers are threaded with M3 threading and comes with threaded plastic bases for easy attachment to the deck.


  • Super-spherical
  • Durable
  • Threaded

Mechanical specification

  • Diameter: 6.5 mm
  • Weight including plastic base: 0.2 g
  • M3 threading
  • Plastic base diameter: 10 mm

Package contents

  • 10 x 6.5 mm passive markers
  • 10 x plastic bases

Active marker deck

The active marker deck gives uses robust and long range tracking using Qualisys QTM. The deck supports up to 4 IDs so it's possible to have many different configurations without having to carry around bulky spherical markers.

The pre-flashed firmware on the deck supporting Qualisys is closed source, but the electronic design is open making it possible to adapt to other applications.


  • Using Qualisys QTM
  • Robust and long range tracking
  • Supports up to 4 different marker IDs
  • The arms can be cut and extended with wires to locate the marker LEDs in other positions

Package content

  • 1 x Active marker deck

Lighthouse positioning deck

With the Lighthouse positioning deck, high precision autonomous flight becomes available for everyone. The Lighthouse deck uses the HTC Vive base stations (aka Lighthouse V1) or SteamVR Base Station 2.0 (aka Lighthouse V2) to achieve high precision positioning. The deck has 4 receivers which gives the full pose of the Crazyflie.

The position and pose is calculated directly in the Crazyflie, which makes it possible to create fully autonomous systems without external communication.

On-board position calculation and low complexity makes it the ideal choice for everything from big laboratories to small classrooms.


  • High accuracy positioning
  • Supports HTC Vive Base Station and SteamVR Base Station 2.0
  • On-board FPGA for signal processing with open source toolchain
  • UART and I2C communication to Crazyflie deck expansion port
  • UART pads available to solder a 2.54mm pin header for connection to external system, eg. Arduino
  • UART and I2C bootloader to program the FPGA configuration

Package content

  • 1 x Lighthouse positioning deck

Loco positioning deck

The Loco positioning Deck is a Tag in the Loco Positioning system and measures the distance to Anchors. The distances are used to estimate the absolute position of the Crazyflie 2.X in the room, which can be used for autonomous flight. To read more about the Loco positioning deck go to our website.

Note: This product is intended to be used together with Loco Positioning Nodes and can not be used standalone.

For more information on the Loco Positioning System please see this Loco Positioning System page.


  • Measures distances to Loco Positioning Node Anchors
  • 4 status LEDs

Package contents

  • 1 x Loco Positioning deck

Loco positioning node

The Loco Positioning Node is a versatile positioning device that mainly is used as an Anchor. The system measures the distance between Nodes and Tags, and from those distances the absolute position of objects carrying Tags can be calculated.

For more information on the Loco Positioning System please see this Loco Positioning System page.


  • Supports Anchor and Sniffer mode, as well as a limited TWR Tag mode (no position estimation)
  • Can be used as a standalone system with some Nodes acting as Anchors and one Node acting as a Tag reporting distances to the Anchors.
  • Multiple powering options
  • On board MCU

Package contents

  • 1 x Loco Positioning Node

Motion capture marker deck

Placing motion capture markers on the Crazyflie 2.X can be a hassle, but this deck makes it really easy. With lots of holes to mount markers in you can create different configurations to support identification.

The deck is designed in collaboration with Qualisys. We suggest using 6.5 mm, 8 mm or 9.5 mm diameter reflective motion capture markers.


  • 35 marker mount holes (​M3) with 5 mm spacing
  • Solder pads for 2 buttons connected to I/Os on Crazyflie 2.X

Package contents

  • 1 x Motion capture marker deck

AI-deck 1.1

Super-edge-computing on a 30 gram flying platform is now available! 

Thanks to the GAP8 IoT application processor from GreenWaves Technologies and the ULP camera, the Crazyflie is able to capture, analyze and classify its environment, as previously presented by ETH Zurich on the initial PULP-Shield PCB design from IIS-ETHZThis lightweight and low-power combination opens up many research and development areas for the micro-sized Crazyflie 2.X UAV.

The AI-deck 1.1 extends the computational capabilities and will enable complex artificial intelligence-based workloads to run onboard, with the possibility to achieve fully autonomous navigation capabilities. The ESP32 adds WiFi connectivity with the possibility to stream images as well as handling control. 

The AI-deck 1.1 version only has minor updates compared to the AI-deck 1.0. The Himax camera module is now the greyscale version and the GAP8 is now revision C instead of B.


  • GAP8 Ultra-low power 8+1 core RISC-V IoT Application Processor
  • Himax HM01B0 – Ultra low power 320×320 grayscale camera.
  • 512 Mbit HyperFlash and 64 Mbit HyperRAM
  • ESP32 for WiFi and more (NINA-W102)
  • 2 x Cortex-M 10-pin JTAG for GAP8 and ESP32
  • Button connected to ESP32 for UART bootloader or other action
  • 1 x green LED connected to GAP8 (A2)
  • 1 x green LED connected to ESP32 (GPIO_24)
  • Can work stand alone. Power board on VCOM
  • Can be mounted above or under the Crazyflie 2.X

Package contents

  • 1 x AI-deck 1.1
  • 2 x Long pin headers ( pin 15mm - plastic 4mm - pin 6mm)

BigQuad deck

With the BigQuad deck you can transform your Crazyflie 2.X to a bigger quad by connecting external Electronic speed controllers (ESCs) to the breakout connectors on the deck. The autodetection of the deck makes this transformation possible to do in seconds. The deck also contains breakout header connectors for additional accessories such as external receiver (CPPM input) and GPS. It can also monitor battery voltage and current.


  • 4 x ESC connectors
  • 0.1” header mounting holes for additional connectivity:
  • CPPM input (3 pin)
  • GPS input (4 pin)
  • I2C expansion (4 pin)
  • Battery and current monitoring input (3 pin)
  • Buzzer output (2 pin)
  • Connect one or two additional decks
  • Automatic detection of expansion deck

Package contents

  • 1 x BigQuad deck
  • 4 x M2x4 nylon screw
  • 2 x M2x6 hex spacer

Breakout deck

Test and develop new hardware designs easily without soldering by using the breakout expansion board. Just build the circuit on a breadboard and attach the Crazyflie 2.X to it. The board has all the 20 expansion connector pins available as well as a footprint where a 1-wire memory could be soldered to make the board auto-detectable by the firmware.


  • SOT-23 footprint for 1-wire memory used for automatic detection (not mounted)
  • All 20 pins in the Crazyflie 2.X expansion port available
  • 2.54mm header that fits a breadboard (not included)
  • Screen-print showing all signal names


  • Works with the Crazyflie 2.X

Package contents

  • 1 x Breakout deck

Buzzer deck

Sometimes LED feedback isn’t enough, like when you’re flying around in a lab and living room. With the Buzzer deck  you’ll get audio feedback on system events, like low battery or charging completed. Or why not create your own melodies that will play while you’re buzzing around. If you’re tapped out on creativity there are already a few melodies pre-programmed that you can use.


  • Low profile piezo buzzer for tone and melody generation
  • Automatic detection of deck via 1-wire memory

Package content

  • 1 x Buzzer deck