3. Drone Parts

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3.1. Props

The propellers or props are used to create roll, pitch and yaw. Note that there are 2 types of props, clockwise CW and counter-clockwise CCW. The CCW props have notches while the CW props do not. On every Tello, you should have 2 CW and 2 CCW props, and they should be placed diagonal from each other. With the Tello laying down and the battery facing towards your body and the camera facing away, the top-left and bottom-right props should be CCW props, and the top-right and bottom-left props should be CW props.

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3.2. Motor

The motors are responsible for moving the props.

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3.3. Landing gears

Landing gears help the drone land safely.

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3.4. Body

The body holds the main control board and communicates signals.

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3.5. Electronic speed controller

The electronic speed controllers, ESCs, are responsible for modulating signals to the motors from the main control board.

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3.6. Receiver

There is a receiver that listens in for incoming signals.

3.7. Antenna

The antenna captures remote signals.

3.8. Battery

The battery powers the drone. The specification of the Tello battery is as follows.

  • Lithium Ion (Battery Type)

  • 4.35 V (Max Charge Voltage)

  • 3.8 V (Nominal Voltage)

  • 1100 mAh, 4.18 Wh (Rated Capacity)

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3.9. Camera

The camera is used to capture images or videos.

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3.10. Sensors

Some drones may have additional sensors (light, GPS, ultrasound, etc.). The Tello does not have such additional sensors, apart from the camera.