Drone Crazyflie 2.1 Open Source Quadcopter

The Crazyflie 2.1 is a versatile open-source flying development platform that only weighs 27g and fits in the palm of your hand. Crazyflie 2.1 is equipped with low-latency/long-range radio as well as Bluetooth LE.

Mechanical Specifications :
Takeoff weight: 27g
Size (WxHxD): 92x92x29mm (motor-to-motor and including motor mount feet)

Radio Specifications :
Increased range with radio amplifier, tested to > 1 km range LOS with Crazyradio PA (environmentally dependent)
Bluetooth Low Energy support with iOS and Android clients available
Dual antenna support with both onboard chip antenna and U.FL connector

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

Flight Specifications :
Flight time with stock battery: 7 minutes
Charging time with stock battery: 40 minutes
Max recommended payload weight: 15 g

Supported Clients/controllers :
Win/Linux/OSX python client
The gamepads used by the Xbox 360 and the Playstation 3 are used as reference controllers
Any gamepad/controller with at least 4 analog axes
Android mobile device
iOS mobile device