Crazyflie 2.1 kit user manual Document version 1.
Safety and Regulatory information 3 FCC Statement 3 Safety precaution for battery 3 Assembly 5 Unpacking the box 5 Twisting the motor wires 5 Mount the motors in the motor mounts 5 Attach the twisted wire 5 Insert the motor in the motor mount 5 Attach the propellers 6 Attach the foam pad 6 Attach headers 6 Attach the battery 7 Assembled Crazyflie 2.
Safety and Regulatory information Crazyflie 2.1 was designed by Bitcraze AB Södra Bulltoftavägen 46, 212 22 Malmö, Sweden and is assembled in China. Disclaimer The information in this document is subject to change without notice. Bitcraze AB assumes no responsibility for any omissions or inaccuracies and specifically disclaims liabilities, losses, or risks, personal or otherwise, incurred as a consequence, directly or indirectly, of the use of any of the contents of this document.
To avoid damaging the product or the battery, this product can only be used with compatible battery. Warning: To reduce the risk of fire or burns, do not disassemble, crush, puncture, short external contacts or circuit, expose to temperature above 60°C (140°F), or dispose of in fire or water. Do not expose the battery to extremely low air pressure as this may result in an explosion or leakage of flammable liquid or gas.
Assembly Assembling your Crazyflie 2.1 will probably take less than 10 minutes, but there are a few pitfalls. So make sure to follow the instructions below! Unpacking the box Start by unpacking the box. It should contain the following items: ● 1 x Crazyflie 2.
Attach the propellers Note: There are two kinds of propellers, the clock wise (CW) and counter clock wise (CCW) propellers, each kind has their own bag in the box. Notice the shape of the tips, the sharper corner is on the back side of the rotation direction. The CW propellers are also usually marked with an “A”, “A1” or “A2”, while the CCW propellers are marked with “B”, “B1” or “B2” (the number is irrelevant). Also make sure that the correct side is facing up, the top side should be convex.
Attach the battery Place the battery between the headers inserted into the expansion connector and insert the battery holder board onto the headers. Watch out for the pins that can be a bit sharp when inserting it. The friction should hold the battery in place so tighten it until it does. Now connect the battery and you are finished with the assembly. The battery wires can preferably be bent and placed underneath the PCB to be out of the way. Assembled Crazyflie 2.
Getting to know your Crazyflie First of all, let’s look at what is front and back, this is important when flying and also when mounting expansion decks. The small “bump” (the antenna) is on the front and the blue LEDs are at the back. Start up sequence When the Crazyflie 2.1 is powered on it will automatically go through a short sequence of events to get ready for flight. 1. Run self tests - the Crazyflie 2.1 checks that the hardware is OK 2. Calibrate sensors - the Crazyflie 2.
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 2.1 on a level surface and keep it absolutely still to calibrate.
Installing on a mobile device It is really easy to install the app and connect to the Crazyflie 2.1. All you need is an Android or iPhone/iPad device that supports Bluetooth Low Energy (BLE). Install the app The Crazyflie client is available for Android and iOS. Search for it on Google Play and Apple iTunes. ● The Android client can be downloaded from Google Play: https://play.google.com/store/apps/details?id=se.bitcraze.
Flying Now it’s time to do some flying, but first there are some basics you need to know about. Orientation First of all, it is much easier to fly when the copter is pointing away from you. The blue LEDs are on the back, so keep them pointing in your direction when starting to fly. Maneuvering a quadcopter When flying a quadcopter there are four main dimensions of controls; roll, pitch, yaw and thrust.
The mobile app controller The controls on the gamepad or mobile app have the following mapping: The ground effect When the copter is flying close to the ground (less than a few decimeters above the ground) it is affected by what is called the ground effect. The feeling is that the air is slippery, almost as if it is gliding on ice. To avoid this, particularly when learning to fly, use a lot of thrust just when taking off and then ease off for level flight.
