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Crazyflie 2.1 Brushless

Experience the next level of performance!

Powerful and resilient, the Crazyflie 2.1 Brushless offers stability, flexibility and endurance. Our latest drone model comes equipped with brushless motors, offering higher payload capabilities, enhanced agility, and improved robustness.

Features

  • Fully compatible with the Crazyflie 2.X ecosystem
  • Multiple positioning technologies supported
  • Easy to assemble and no soldering required
  • Supports expansion decks with automatic detection
  • Wireless firmware updates
  • On-board charging via standard uUSB or contact pads (TBD)
  • Open-source software with extensive library support
  • Swarm and ROS support
  • Low latency radio with peer-two-peer functionality
  • 4 x 08028-10000KV high-quality motors generating up to 30 grams thrust each
  • 4 x integrated 1-cell 5A ESCs running BLHeli_S/Bluejay
  • Custom-designed and optimized 55mm propellers with 35mm pitch
  • Flight time with stock battery: 10 minutes
  • Max recommended stock payload weight: 40 grams

Features


  • Fully compatible with the Crazyflie 2.X ecosystem
  • Multiple position technology support
  • Easy to assemble and no soldering required
  • Supports expansion decks with automatic detection
  • Wireless firmware updates
  • On-board charging via standard uUSB or contact pads
  • Open source software with extensive library support
  • Swarm and ROS support
  • Low latency radio with peer-two-peer functionality.
  • Low noise flight
Mechanical specifications

  • Takeoff weight with legs: 34g
  • Takeoff weight with guards: 37g
  • Frame size: 100m (diagonal motor center to motor center)

Onboard microcontrollers

  • STM32F405 main application MCU (Cortex-M4, 168MHz, 192kb SRAM, 1Mb flash)
  • nRF51822 radio and power management MCU (Cortex-M0, 32Mhz, 16kb SRAM, 128kb flash)
  • micro-USB connector
  • On-board LiPo charger with 100mA, 500mA and 980mA modes available
  • Full speed USB device interface
  • Partial USB OTG capability (USB OTG present but no 5V output)
  • 8KB EEPROM
IMU specification

  • 3 axis accelerometer / gyroscope (BMI088)
  • High precision pressure sensor (BMP388)

Flight specifications

  • 4 x 08028-10000KV high-quality motors generating up to 30 grams thrust each
  • 4 x integrated 1-cell 5A ESCs running BLHeli_S/Bluejay
  • Custom-designed and optimized 55mm propellers with 35mm pitch
  • Flight time with stock battery: 10 minutes
  • Charging time with stock battery: 60 minutes
  • Max recommended stock payload weight: 40 g
Radio specification

  • 2.4GHz ISM band radio
  • Increased range with 20 dBm radio amplifier, tested to > 1 km range LOS with Crazyradio PA (environmentally dependent)
  • Bluetooth Low Energy support
  • Dual antenna support with both on board chip antenna and U.FL connector

Usage

We designed the Crazyflie 2.1 Brushless to be as flexible as possible, offering a wide range of features and easily customizable firmware. It includes the same flexible expansion interface found across our entire drone lineup, allowing users to easily integrate ready-made expansion decks or access buses like UART, I2C, SPI, PWM, analog in/out, and GPIO.


We are constantly improving the firmware, software, and documentation. At the same time, we are exploring new, creative ways of using the system. Additionally, we design new expansion decks that bring added functionality, expanding the possibilities and growing the Crazyflie ecosystem. The platform also supports wireless firmware updates via radio and Bluetooth LE, making it easy to update whenever a new version is released.


Getting started


Go to the crazyflie 2.1 Brushless getting started tutorial to assemble your Crazyflie, update its firmware and fly it. Also take a look at our System overview to learn more about the Crazyflie’s ecosystem of positioning systems, clients and of course the Crazyflie itself with its expansion decks.


Package contents:


  • 1 x Crazyflie 2.1 Brushless control board
  • 1 x 350 mAh LiPo battery (spare part)
  • 1 x Battery holder (spare part)
  • 1 x Foam battery pad
  • 5 x Propeller guards (1 spare)(spare part)
  • 5 x Standing legs (1 spare)(spare part)
  • 4 x Brushless motors (spare part)
  • 14 x Short (black) screws
  • 4 x Long (silver) screws
  • 2 x Short male deck connectors
  • 2 x Long male deck connectors
  • 5 x CW propellers (3 spare) (spare parts)
  • 5 x CCW propellers (3 spare) (spare parts)
  • 1 x Micro-USB cable (48cm) (spare part)
  • 1 x Screwdriver
  • 1 x Propellers removal tool

Resources:

Disclaimer:

You are responsible for the proper handling and maintenance of the drone and its components. It is essential to ensure that you fully understand how your drone operates and verify that it is in good working condition before every flight. Operating a drone recklessly or negligently could lead to damage, injury, or legal consequences, including potential fines, lawsuits, or imprisonment.


There are things you should do to ensure maximum safety:


  • You should check your drone before and after each flight to make sure it’s working properly and there isn’t any damage.
  • Don’t make contact with a spinning propeller. A spinning propeller is hazardous if carelessly handled. Avoid sticking your fingers close to them.
  • When possible, build, test and configure your drone without its propellers attached.
  • Avoid catching the drone mid-flight or while it’s landing.
  • Always make sure that the path of your drone is clear to avoid any accidents.
  • Use the propeller guards as much as possible

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