Zerotech DOBBY User manual

Quick Start Guide V1.4
2016.8

1. Get to Know Your DOBBY
DOBBY is ZEROTECH’s compact, portable, multi-axis aircraft
that has been tailor-made for selfie-lovers. It comes with a high
definition camera that can take 4208 x 3120 photos and can shoot
1080p videos @30fps. The accompanying Do.Fun app lets you
control DOBBY’s flight.
DOBBY’s structural components:
1. Camera
2. Propeller
3. Arm
4. On/Off Switch, Power Indicator
5. Reset Button
6. Micro-USB Port
7. Battery
8. Battery Level Button
9. Battery Level Indicator
10. Optic Flow and Ultrasonic
Positioning Module
11. Aircraft Status Indicator
Hints Warning
Symbols LEDs
On Flashing Off

GPS positioning
status
Current flight height Current flight
distance
Wi-Fi connection
status
Settings
Optic flow
positioning status
Target tracking
Login/register
Aircraft battery
Photo timer
Voice control
Palm take-off Palm landing
Landing
Single shot photo
Shutter
Burst shot photo
One click take-off
Short video
Media libraryRecord
Do.Fun is specifically designed for DOBBY. Through the app,
users can use their mobile as a remote controller for flight control
and to take photos and record videos. You can also directly share
your photos and videos to social networks.
Get to Know the Main Interface
2. Get to Know Your Do.Fun
Downloading Do.Fun
Search for the Do.Fun on the App Store or Google Play, and install
the app on your mobile device.
Do.Fun requires the OS of your mobile device to be an Android 4.3 or higher
or an iOS 8.0 or higher.
Function
integration
Gesture control Face tracking

3. Charging the Battery
Press the Battery Level Button, the Battery Level Indicator will
show the current battery level. If any of the lights are off, please
charge the battery.
Plug the battery down to the charger. Use the USB cable to connect
the charger to the adapter, and then plug the adapter into a power
socket to begin charging.
When charging, the Charging Status Indicator will be solid
orange/red. If the light turns solid green, it means it has finished
charging. Turn off the power source and then remove from the
charger.
We suggest you to conduct the first flight in an open outdoors area.
You can turn off the beginner mode to conduct indoor flight after
getting familiar with the flight control, as well as to unlock palm
take-off/landing, voice control and other advanced user functions.
4. Preparing the Area for Flight
Outdoors
Don’t fly DOBBY in bad weather conditions, such as in wind,
rain, snow etc.
Please fly in open area, do not fly near buildings and keep a
good distance from tall buildings, for fear that the GPS signal
would be blocked. If you can’t fulfil the requirements for the GPS
positioning, please do so for the optic flow and ultrasonic
positioning, see “Indoors” for more information.
Do not fly near areas with abnormal magnetic fields and near
complex electromagnetic environments.
Please do not fly in areas where flying is illegal or restricted. The aircraft
will not be able to fly in restricted areas while using the GPS positioning.
Battery and Charger Connection for Charging
Battery
Charger
Battery Level Button
Battery Level Indicator
Charging Status Indicator
Charging Port

Indoors
During indoor flight, DOBBY uses the optic flow and
ultrasonic positioning. The flight area needs to be above a
textured surface that is not too bare or too cluttered. If you
can
’ t find an appropriate textured surface, you can put a
square cloth on the ground, table or any large, flat surface to
provide the required textured surface.
Indoor flight needs to be conducted in a well-lit area
(luminosity > 15lux) such as an area illuminated by an
ordinary fluorescent lamp.
During fast flight at low levels (0.5m or less), the ultrasonic
positioning system may not work.
Do not fly above objects that readily absorb ultrasonic waves.
Do no fly above highly reflective surfaces.
5. Preparing the Aircraft
Unfolding the Aircraft
Fold out the four arms of the aircraft.
Adjusting the Camera’s Pitch Angle
There are 6 rotations in the Camera
’ s pitch angle limit. The lens
facing the front: 0° ; Push up the lens: elevation 22.5° ; Push down
the lens: successively depressions -22.5°, -45°, -67.5°, -90°.
There are 6 ink lines on the side of the Camera corresponding to
different pitch angles. Push the Camera to the needed angle, just
exposing the corresponding ink line.
Camera’ s Maximum Depression -90° Camera’ s Maximum Elevation 22.5°
- 90°
- 67.5°
- 45°
- 22.5°
Lens
22.5°
Lens

Optic flow positioning status abnormal
Optic flow positioning status normal
Positioning status
Low battery Full battery
6. Connecting the Aircraft to Do.Fun
Connect your mobile device to the aircraft’s Wi-Fi. The default
SSID is Dobby-XXXXXX, please check the label on the bottom of
the aircraft to acquire the SSID, and the default password is
zerotech.
Open the main interface of Do.Fun. If the right hand corner
shows that your positioning status is normal (it will take off under
optic flow positioning when GPS positioning status is abnormal),
that you’ve connected to the Wi-Fi and that the aircraft’s battery
level is high, it means you’re ready to start flying.
Wi-Fi disconnected Wi-Fi connected
Wi-Fi status
Aircraft battery
GPS positioning status abnormal (number of searched-out
satellites < 7)
GPS positioning status normal (number of searched-out
satellites ≥ 7)
You’re required to calibrate your compass before the first flight and
the first outdoor flight!
Turn on the aircraft, open Do.Fun and go to ‘Settings’ - ‘Compass
Calibration’, and then follow the onscreen prompts to calibrate the
compass.
Calibrating the Compass
Turning the Aircraft On
Plug the battery into the battery compartment in the right
direction (the Battery Level Indicator near to the Camera), and
make sure it’s clamped.
Hold the On/Off Switch for 3 seconds. Wait until the Power
Indicator flashes blue, take your finger off the Switch and the
aircraft will turn on.
Wait a few seconds. It will emit a noise notifying you that the ESC
has turned on.
Do not calibrate your compass near large metal objects or in places with
strong magnetic field interferences.

7. Flying
Take-off/Landing
Flight Control Method - Motion Sensing (Taking Left-Hand Throttle for
Example)
Your mobile device tilted within 45°
from horizontal, hold down on any
part of the right hand half of your
screen and tilt your mobile device
backward and forward/left and right
to control backwards and
forwards/left and right movements.
Forward tilt
Right tilt
Left tilt
The default control method is set to motion sensing. You can switch it to
swipe screen or sticks in ‘Settings’ - ‘Control Method’.
The default position of the throttle is on the left hand side. You can switch it to
the right hand side in ‘Settings’ - ‘Hands Switch’.
APP is set for front facing by default. You can switch it to backwards facing in
‘Settings’ - ‘Forward/Reverse’.
The rotating propeller blades may cause damage to nearby people and
objects. Please don’ t fly DOBBY near groups of people and keep a
good distance from the propeller blades.
Swipe the left hand half of
your screen up and down to
control up and down
movements; Swipe left and
right to control DOBBY’ s
direction, Swipe and hold to
continue the movement.
One Click
Take-off
Hold the ‘One Click Take-off’ button, when the
countdown has finished, release your finger off
the button and DOBBY will ascend to 1.5m.
After take-off, the button will switch to ‘Landing’.
Tap this button and DOBBY will start to land on
the ground below itself.
Landing
Backward tilt

Single shot: In the single shot mode, every time you tap the ‘Shutter’
button , it will take one photo.
Burst shot: Tap the ‘single shot’ icon , switch to the burst shot
mode by selecting how many photos to take after choosing
‘Continuous’ in the “Modes” popup menu. Tap ‘Shutter’ to
take the burst shot photos.
Swipe the screen up and down to
control up and down movements;
Swipe left and right to control left
and right movements, Swipe and
hold to continue the movement.
Two fingers swipe the screen
closer and farther to each other
to control backward and forward
movements. Swipe and hold to
continue the movement.
After tapping the direction icon in the top right hand corner, you
can control DOBBY’s direction by swiping left and right; control up
and down movements by swiping up and down. Swipe and hold to
continue the movement. Tapping again will exit direction control.
8. Take Photos/Recording
Taking photos
Flight Control Method - Swipe Screen
Flight Control Method - Sticks (Taking Left-Hand Throttle for Example)
Hold down on the dot at the center of the circle and toggle up and
down/left and right. Toggle and hold to continue the movement.
Left Stick Right Stick
Up
Down
Forward
Backward
Turn
left
Turn
right Right
Left

Tap either the ‘Single Shot’ or ‘Burst Shot’ icon , enter
‘Settings’ - ‘EIS’ , select the needed lens angle (also enable EIS),
and then enter the “Modes” menu, choose ‘Short Video’ to
enter the short video mode and go to the short video interface.
On the short video interface, hold the ‘Record’ button to record
a video. Meanwhile, DOBBY will fly in the direction of the set lens
angle. Release your finger off the button will stop recording and
DOBBY will automatically fly back toward you. You can also record
short videos during DOBBY’s return flight. Short videos can last 10
seconds.
Recording
Tap the ‘Record’ button , it will go to the recording interface and
directly begin recording.
Tap the ‘Stop Recording’ button on the left hand side of the
recording interface to end your recording.
We suggest that you enable EIS before recording. Tap either the ‘Single
Shot’ or ‘Burst Shot’ icon, enter ‘Settings’ - ‘EIS’, select any of the lens
angles to enable EIS.
10s Auto-track Short Video Shoot (Only under Outdoor GPS Positioning)
We suggest that you adjust the Camera’ s pitch angle to be the same as
the lens angle.
- 45°
Take the lens angles 22.5°, 0°, - 45° and - 90° for example to illustrate the
relationship between the flight path in the short video recording and the lens
angle:
- 90°
22.5° 0°
Users can press the volume buttons on their phone or earphone to take
photos.

Aircraft
Weight
Size
Maximum usage height
Flight duration
Operating temperature
Highest wind resistance
Positioning system
Maximum height
Controlling distance
Hovering accuracy
199g
Expanded: 135mmx145mmx36.8mm；
Folded up: 135mmx67mmx36.8mm
3000m (above sea level)
9 minutes (at 0m above sea level)
0~40°C
28km/h
Outdoor: GPS/GLONASS dual-mode satellite positioning
Indoor: optic flow + ultrasonic wave (luminosity>15lux)
GPS positioning: 50m (may be adjusted according to regulations)
Optic flow and ultrasonic positioning: 3m
100m (in open air free of interference)
Vertical : ±0.1m (optic flow and ultrasonic positioning active);
±0.5m (outdoor）
Horizontal: ±0.3m (optic flow and ultrasonic positioning active);
±1.0m (outdoor）
Appendix Parameters
Aircraft Status Indicator
Appendix Indicators
Solid blue
Slow blue flashing
Fast green flashing
Fast yellow/green flashing
Fast yellow/red flashing
Slow yellow flashing
Fast red flashing
Solid Red
Fast purple flashing
Solid Green
Solid White
GPS positioning normal
Optic flow and ultrasonic positioning normal
GPS failure
Ultrasonic failure
Optic flow failure
No-fly zone warning
Low battery warning
Critical battery warning
Compass failure
Horizontal compass calibration
Vertical compass calibration
Battery Level Indicator
0~25%
25%~50%
50%~75%
75%~100%
Fast charging
Fully charged
Not charging
Slow charging
Failure
Charging Status Indicator
Solid orange
Solid green
Slow green flashing
Solid red
Slow red flashing