Udirc U818A WIFI, Manual

6

7

3. Put the drone on the flat ground. The indicator light keeps bright, which indicates

    successful frequency pairing and the drone is ready to be controlled.

Important Notice: Please make sure the gyro of the receiving board is placed on the

                           horizontal position after powering the drone, so that the drone can

                           be controlled.

3. Adjust relative transmitter Trim button to adjust the rudder if the drone tilts to

    one side when flying. 

Picture 13

Picture for battery installation and power on the drone.

Battery

Flying Control

1. Push the Forward/Backward/Left/Right

    Flying Stick to left or right and the drone

    flies to left or right synchronously.

2. Push the Throttle Stick to up or down

    and the drone flies to up or down

    synchronously.

3. Push the Throttle Stick to left or right

    and the drone rotates to left or right

    synchronously.

4. Push the Forward/Backward/Left/Right

    Stick to up or down and the drone flies

    to forward or backward synchronously.

4. The transmitter issues sound of dididi... when the drone battery is low. Please

    land the drone as soon as possible after low battery alarm.

Picture 7

Picture 8

Calibration Instruction

Please follow the below orders to calibrate the drone if the drone hovers after

taking off, and can not be adjusted by trim button and cause difficult operation.
1. Turn off the drone switch and then turn off the transmitter switch.
2. Turn on the transmitter switch, push the Throttle Stick to utmost control distance

    and then pull to the lowest position (See Picture 7 and 8), and the transmitter

    enters the state of code pairing waiting.

Picture 10

Picture 11

Picture 12

Flying Operation:

1. Turn on the transmitter switch (Picture 10) and its indicator light flashes quickly. 

    Push the Throttle Stick to utmost control distance and then to the low end

    (Picture 11/12). The indicator becomes flash slowly, which indicates the

    transmitter enters frequency pairing.
2. Put the battery into the drone battery box, and then connect the battery with the

    drone. The front light flashes slowly. (Picture 13)

Picture 9

3. Power on the drone and put it on the horizontal position. The drone tail

    face to the user and the drone head faces forward. You will hear “ di, do, 

    di” three seconds later, which indicates successful code pairing. The

    fuselage light keeps bright.
4. Forbid to move Throttle Stick before successful calibration. Push the

    Forward/Backward/Left/Right Stick as below picture (See Picture 9). The

    drone fuselage light flashes, which indicates that the drone is calibrating.

    Then the fuselage light of the drone keeps bright, which indicates the

    drone is ready to fly.