Zerotech DOBBY User manual

Quick Start Guide V1.5
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

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 Status Indicators
2. Get to Know Your Do.Fun
Downloading Do.Fun
Search for Do.Fun in App Store or Google Play, download and
install the app to your mobile device.
App SettingsLogin/Register
Return to Home
Takeoff
Somersault
Shutter
Media Library
Photo/Video Switch
More Features Orbit
Landing
Face Tacking
Short Video
Target Tracking
Photo Timer
Optic Flow Positioning
Status Abnormal
Optic Flow Positioning
Status Normal
GPS Positioning Status Abnormal
(number of searched-out satellites < 8)
GPS Positioning Status Normal
(number of searched-out satellites ≥ 8)
Outdoor Positioning
Status Indicator
Wi- Fi Disconnected Wi- Fi Connected
Wi-Fi Connection
Status Indicator
Low Battery Full Battery
Aircraft Battery
Indicator
Current Flight
Distance
Current Fight
Height
Flight Distance/
Height
Indoor Positioning
Status Indicator
Get to Know the Functional Buttons
Camera Settings
Indoor/Outdoor
Switch
Voice Control
Record Stop Recording
Assisted GPS
Positioning

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 completed
charging. Turn off the power source and remove the battery from
the charger.
We suggest that you conduct the first flight in an open outdoors
area and that you conduct indoor flight after getting familiar with the
flight control.
4. Preparing the Area for Flight
Outdoors
Don’t fly DOBBY in bad weather conditions, such as in high 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. DOBBY 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
clear textured surface that is not too sparse or too dense. If
you can’ t find an appropriate textured surface, you can put a
textured carpet or cloth on the ground, table or any large,
horizontal surface to provide the required texture.
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
1) Unfolding the Aircraft
Fold out the four arms of the aircraft.
2) 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 several 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

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 beside the
battery compartment on the base of the aircraft to acquire the
SSID, and the default password is zerotech.
Open the main interface of Do.Fun. First, toggle the “Indoor/Outdoor
Switch” to choose your current environment:
You’re required to calibrate your compass before the first flight and
the first outdoor flight!
Connect to the aircraft’s Wi-Fi, open Do.Fun and go to “App
Settings” - “Compass Calibration”, and then follow the onscreen
prompts to calibrate the compass.
4) Calibrating the Compass
3) 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
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.
At last, check if it shows that it’s connected to the Wi-Fi , that
the aircraft’s battery level is high , and that the optic flow
positioning status is normal or the GPS positioning status is
normal . If so, you can take off.
indicates indoor, it will
use optic flow positioning.
indicates outdoor, it will
use GPS positioning.

Takeoff/Landing
Flight Control Method - Motion Sensing
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 backward and
forward/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 “App Settings” - “Control Method”.
The default camera orientation is set “Selfie” by default. You can switch it
to “Find a View” in “App Settings” - “Camera Orientation”.
Swipe the left hand half of
your screen up and down to
control up and down
movements; Swipe left and
right to control the direction.
Swipe and hold to continue
the movement.
Tap it, the app will pop up the “Ground Takeoff” and “Palm
Takeoff” options.
Backward tilt
If you choose “Ground Takeoff” , DOBBY will directly take off.
If you want to try palm takeoff, please first place DOBBY on your
palm, and then choose “Palm Takeoff” , the propellers will start to
rotate. Wait until they fully rotate, remove your palm or slightly
toss it.
Tap it, the app will pop up the “Ground Landing” and “Palm
Landing” options.
If you choose “Ground Landing” , it will directly start to descend.
If you choose “Palm Landing” , it will start to descend slowly.
Place your palm right under it, it will land onto your palm. Or it will
close palm landing and restore to ground landing in 10 seconds.

Single shot: In the single shot mode, every time you tap the “Shutter”
button , it will take one photo.
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,
get close to or away from each
other to control backward and
forward movements. Swipe and
hold to continue the movement.
Tap the direction icon in the top right hand corner, and then
swipe the screen left and right to control the direction; Swipe up and
down to control up and down movements. Swipe and hold to
continue the movement. Tapping again will exit direction control.
8. Taking Photos/Recording Videos
Taking photos
Flight Control Method - Swipe Screen
Flight Control Method - Sticks (Taking American Operator for Example)
Free Sticks: Hold down on the dot at the center 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
Safe Sticks: Similar to free sticks, but it uses tapping on the arrows
on the four directions instead of toggling.

Tap the “Camera Settings” to enter “Settings” - “EIS”, select
the needed lens angle (also enable EIS), and then tap the “More
Features” , choose “Short Video ” in the popup feature list
to go to the short video recording interface.
Then hold the “Record” button to record a video. Meanwhile,
DOBBY will fly in the direction of the selected lens angle. Releasing
your finger off the button (or the duration reaching 10 seconds) will
stop recording, and DOBBY will automatically return. You can also
hold to record short videos during DOBBY’s return flight.
Conventional Video Recording
Toggle the “Photo/Video Swicth” to go to the conventional
video recording interface.
Tap the “Record” button , it will begin recording. Tapping the
“Stop Recording” button will end your recording.
We suggest that you enable EIS for video stabilization before recording.
Tap the “Camera Settings” to enter “Settings” - “EIS”, select any of
the lens angles to enable EIS.
10s Auto-Track Short Video Recording (Only under Outdoor GPS Positioning)
We suggest that you adjust the Camera’ s pitch angle to be the same as
the selected lens angle.
Here we respectively take the selected lens angles 0°, -45° and -90° for
example to illustrate the relationship between the flight path in the short video
recording and the selected lens angle:
You can press the volume buttons on your mobile device or earphones to
take photos.
and you’re switched to the burst shot mode. Afterwards, every time
you tap “Shutter” , it will take a series of burst shot photos.
- 45° - 90°
0°
Burst shot: Tap the “Camera Settings” . Tap “Burst Shot ”
and select how many photos to take in the “Modes” popup menu,

Aircraft
199g
Expanded: 135mmx145mmx36.8mm；
Folded up: 135mmx67mmx36.8mm
3000m
9 minutes (at sea level)
0~40°C
28km/h
Outdoor: GPS&GLONASS dual-mode satellite positioning
Indoor: optic flow (luminosity>15lux) + ultrasonic wave
GPS positioning: 50m (may be adjusted by local regulations)
Optic flow and ultrasonic positioning: 3m
100m (in open air free of interference)
Vertical : ±0.1m (ultrasonic positioning active);
±0.5m (outdoor)
Horizontal: ±0.3m (optic flow positioning active);
±1.0m (outdoor)
Appendix Specifications
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
Charging completed
Not charging
Slow charging
Failure
Charging Status Indicator
Solid orange
Solid green
Green flashing
Solid red
Red flashing
Weight
Size
Max. operating altitude
Flight duration
Operating temperature
Highest wind resistance
Positioning system
Max. ascent height
Max. control distance
Hovering accuracy