12/24/2018
Getting started with the Crazyflie 2.0 | Bitcraze
https://www.bitcraze.io/getting-started-with-the-crazyflie-2-0/
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Start up sequence
When the Crazyflie 2.0 is powered on it will automatically go through a short sequence of
events to get ready for flight.
1. Run self tests - the Crazyflie 2.0 checks that the hardware is OK
2. Calibrate sensors - the Crazyflie 2.0 reads its sensors to get base values. It must be
absolutely still
to do this, so it’s best to put it on a level surface for a second.
3. Ready to fly!
Understanding LEDs
You also need to understand what the LEDs mean.
Power on and all is good: The blue LEDs (2 and 3) are fully lit and the front right LED
(1) is blinking red twice every second.
Power on and all is good but sensors are not yet calibrated: The blue LEDs (2 and 3)
are fully lit and the front right LED (1) is blinking red with 2 seconds interval. Put the
Crazyflie 2.0 on a level surface and keep it absolutely still to calibrate.
Radio connected: The front left LED (4) is flickering in red and/or green.
Battery low: The front right LED (1) is fully lit in red. It’s time to land and re-charge the
battery.
Charging: The back left blue LED (3) is blinking while the right back blue LED (4) is lit.
Boot loader mode: The blue LEDs (2 and 3) at the back are blinking approximately
once every second.
Self test fail: The right front LED (1) is repeatedly blinking five short red pulses with a
longer pause between groups.
