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====== Crazyflie Nano Quadcopter ======
The Crazyflie is a tiny quadcopter often referred to as a nano-quad, built using the PCB itself as the frame. Developed solely by open source tools and designed with development in mind. E.g. we choose 0603 components (resistors & caps) over 0402 to make it easier to replace components. The voltage regulators are adjustable which makes it possible to change the digital and analog supply voltages simply by changing a couple of resistors.

**Features**
  * Small and lightweight, around 19g and about 90mm motor to motor
  * Flight time up to 7 minutes with standard 170mAh Li-Po battery
  * Standard micro-USB connector for charging which takes ~20min for the stock 170mAh Li-Po battery
  * On-board low-energy radio@1mW based on the nRF24L01+ chip. Up to 80m range (environment dependent) when using the Crazyradio USB dongle
  * Radio bootloader which enables wireless [[projects:crazyflie:pc_utils:qt_ui#bootloader|update of the firmware]]
  * Powerful 32 bit MCU: STM32F103CB @ 72 MHz (128kb flash, 20kb RAM)
  * 3-axis high-performance MEMs gyros with 3-axis accelerometer: Invensense MPU-6050
  * Available footprints to manually solder magnetometer HMC5883L/HMC5983 or/and barometer MS5611 (Mounted on the 10-DOF version)
  * Expansion header 2×10 pins 1.27mm (0.05”) pitch including power, I2C/UART, SPI/ADC. Header also contains ARM Cortex 10-pin JTAG (header not included)
  * 4-layer low noise PCB design with separate voltage regulators for digital and analog supply
====== Using the Crazyflie ======
  * [[projects:crazyflie:userguide:index|User Guide/Introduction]]: Short user guide that introduces some basic concepts
  * [[projects:crazyflie:mechanics:assembly|Crazyflie assembly]]: Instructions on how to assemble the Crazyflie kit
  * [[projects:crazyflie:binaries:index | Binary distributions]]: Download links for the binary distribution of the PC client, Crazyradio Windows driver and the Crazyflie PC Client
  * [[projects:crazyflie:pc_utils:qt_ui|GUI Application]]: Userguide for the Graphical user interface
  * [[projects:crazyflie:pc_utils:install|Installation]]: Install instructions for PC side software
  * [[projects:crazyflie:pc_utils:inputdevices|Input devices]]: What input devices are supported and how do you get them working
  * [[projects:crazyflie:userguide:tips_and_tricks|Tips and tricks]]: Tips and tricks for flying
  * [[projects:crazyflie:userguide:troubleshooting |Troubleshooting ]]: How to find and fix problems
  * [[projects:crazyflie:safety|Safety Instructions ]]: Important instructions before and during flying
  * [[projects:crazyflie:faq | FAQ]]: A list of frequently asked questions and the answers to them
  * [[projects:crazyflie:mechanics:repair|Repairing ]]: How to repair mechanical problems
  * [[projects:virtualmachine:index | Bitcraze Virtual Machine ]]: Information about how to download and use the Virtual Machine
  * [[projects:crazyflie:android_client:user_guide|Android client user guide]]: Install instructions and user guide for the Crazyflie Android client
====== Development ======
  * [[projects:crazyflie:wishlist| Wishlist and expansion ideas]]: Our and other peoples wishlists, project ideas and possible expansions
  * [[projects:contribution:index | How to contribute to the project]]

===== PC/Host Environment =====
  * [[projects:crazyflie:pc_utils:dev_guide|Application dev. guide]]: Development guide for the PC side applications/library
  * [[projects:crazyflie:pc_utils:pylib|Crazyflie Python Library]]: Documentation for the Python library used to communicate with the Crazyflie

===== Android Environment =====
  * [[projects:crazyflie:android_client:dev_guide|Android client dev. guide]]: Development guide for the Crazyflie Android client

===== Firmware =====
  * [[projects:crazyflie:devenv:index|Development Environment]]: Setting up the compiler installing libs and fixing permissions for JTAG/radio dongles.
  * [[projects:crazyflie:firmware:arch|Overall firmware architecture]]
  * [[projects:crazyflie:firmware:comm_protocol|Communication protocol]]
  * [[projects:crazyflie:firmware:altitude_hold|Altitude hold mode]]

===== Electronics =====
  * [[projects:crazyflie:hardware:explained| Crazyflie KIT electronics explained]]
  * [[projects:crazyflie:hacks:index | Crazyflie hacks and mods]]
  * [[projects:crazyflie:hardware:schematics | Crazyflie schematics]]
  * [[projects:crazyflie:hardware:spareparts | Spare components and where to order them]]
===== Expansion boards =====
  * [[projects:crazyflie:expansionboards:index|List of expansion boards]]
  * [[projects:crazyflie:expansionboards:howto|Reference design]]: KiCad files for schematic and layout reference design
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