The Crazyflie is a tiny quadcopter often refereed 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 an 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 enabled wireless 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