Operation Manual
IMPORTANT
Read before
flying!
Contents
01 Meet IRIS
03 Parts
04 Charging the Battery
06 Attaching Propellers
07 Safety and Failsafes
08 Learn to Fly
11 Flight Modes
13 Return to Launch
13 Geofence
14 First Flight
19 Planning Missions
20 Flying Missions
21 Specifications and Resources
22 Learn More and Support
Meet IRIS+.
Thank you for purchasing IRIS+.
IRIS is a personal aerial imaging platform powered by open-source
hardware, software, and firmware. Please read this manual carefully
before your first flight and pay close attention to safety information.
Happy flying!
Important note: When using a GoPro with IRIS, always
ensure that the WiFi on the GoPro is turned OFF.
01
Front
Rear
antenna
safety button
front arms (blue)
02
USB port
status LED
battery
compartment
rear arms (black)
Parts
Controller
your direct link to IRIS
Ground station radio
with USB and Android adapters
Battery kit
battery, guard bag, and charger
with international travel adapters
Propellers and tool kit
four propellers with propeller tool and
small, medium, and large hex keys
(1.5 mm, 2 mm, and 3 mm)
Tall legs
Switch to tall legs to use IRIS with the Tarot
Gimbal or for extra clearance on landing.
Use the small (1.5 mm) hex
key to loosen the set screw
in the bottom of the leg.
Slide out the leg to remove it, and replace with the tall leg.
Tighten the set screw until it sits flush with the surface.
Do not tighten the screw beyond this point.
03
Charging the Battery
IRIS is powered by a rechargeable lithium polymer (LiPo) battery. Store
the battery at half charge then charge fully before flying. Batteries must
ship at half charge, so please charge before your first flight. Each full
battery provides up to 22 minutes of flight time without a gimbal and
up to 16 minutes when using a Tarot Gimbal.*
Connect charger to the
1
power adapter cable and
a wall outlet.
Set the charger to
LiPo and 3A.
2
Connect the white
connector to the 3S port.
3
Join the two yellow
connectors together.
Connect the red cable to the
+ port and the black cable
to the - port.
+
–
LiPo 3A
04
3S
Secure battery inside the guard bag
while charging. Charge until the status
4
indicator displays green.
Charging Complete
Battery Safety
Protect the battery from extreme heat, extreme cold, puncturing,
and flammable surfaces. Always transport, charge, and store
the battery in the guard bag.
Charge the battery using a designated LiPo balance charger only.
Always monitor the battery while charging.
Flying with a low battery is a safety risk and can render the battery
unusable. Always discontinue use when you receive a low battery
notification, and always fly with a fully charged battery.
Inspect the battery for damage before takeo and after landing.
If you observe any swelling of the package or the battery ceases
to function, locate your local battery recycling center to dispose
of the battery. In the US and Canada, visit call2recycle.org to find
a location. Do not dispose of the battery in the trash.
*Flight time varies with payload, wind conditions, altitude,
temperature, humidity, flying style, and pilot skill. See the Flight
Checklist for instructions on managing battery levels during flight.
05
Attaching Propellers
IRIS uses four propellers: two with black nuts and two with silver nuts.
Attach the propellers with black nuts to the motors with black tops and
the propellers with silver nuts to the motors with silver tops.
Each propeller has locking and unlocking direction symbols. To attach,
spin the propeller in the direction of the locking symbol. The propellers will
automatically tighten onto the motors when you arm IRIS before takeoff.
For propellers with black nuts:
Spin clockwise to attach.
Spin counterclockwise
to remove.
06
For propellers with silver nuts:
Spin counterclockwise
to attach.
Spin clockwise to
remove.
To remove, hold the motor in place with
the propeller tool, and spin the propeller
in the direction of the unlocking symbol.
Safety
IRIS has powerful motors and high-speed propellers. Never place your hands
near propellers while IRIS is armed or the safety button displays solid red.
Always press the safety button until it displays blinking red before handling.
Always fly in an open area away from people and buildings; do not attempt to
fly indoors or in a confined space. Do not fly over people, near airports, or in any
situation that could pose a hazard to those around you. Always fly within your
line of sight and in compliance with local regulations. IRIS will not avoid
obstacles on its own. As the operator, it is your job to recognize and avoid
obstructions while flying. Always follow the preflight and postflight steps in the
order described in this manual, and remain attentive at all times while flying.
Environmental factors, such as wind and GPS irregularities, can cause instability
in flight. IRIS will attempt to compensate for these factors by triggering a failsafe
if it detects an unsafe flying condition due to loss of controller signal, loss of GPS
signal, or low battery (see below for details). To avoid potential hazards due to
environmental factors, identify the boundaries of your flying area before takeoff,
and recover IRIS manually by switching into standard (STD) if it moves outside
your designated flying area. If you observe any inconsistent behavior, land, and
consult the troubleshooting guide at 3dr.com/iris/info.
Failsafes
Loss of RC signal
Always use the controller as a primary or backup control system when flying.
Ensure that the controller is turned on any time IRIS is powered. If contact with
the controller is lost during flight, IRIS will land and display a blinking yellow LED.
If IRIS is more than 2 meters (6.5 feet) from the launch point, it will return to
launch (RTL) before landing. (See page 13 for more information about RTL.)
Loss of GPS signal
IRIS requires an active GPS signal before takeoff. If IRIS loses GPS signal in flight,
it will trigger a GPS failsafe, indicated by a blinking blue and yellow LED with a
high-high-high-low tone, and automatically switch to manual control (standard
- altitude hold mode). Always be prepared to regain manual control of IRIS at
any time while flying and choose an unobstructed flying area to improve GPS
signal strength. When flying a mission, we recommended changing the GPS
failsafe behavior to land. (Visit 3dr.com/iris/info for more information about
configuring the GPS failsafe.)
Low battery
When the battery reaches 25% of its remaining charge, IRIS will land and display
a blinking yellow LED with a quick repeating tone. If IRIS reaches the low battery
limit during a mission, it will return to the launch point before landing.
07
Left Stick
Learn to Fly
Left Stick
Left Stick
Maneuver IRIS in flight using
the controller sticks.
Throttle
Move the left stick up and down to control altitude.
left stick:
throttle
& yaw
right stick:
pitch
& roll
To take off and to
gain altitude, raise the
throttle stick slightly
above center position.
Set the throttle stick
to center to maintain
the current altitude.
Lower the throttle
stick below center
to decrease altitude.
Set the throttle stick
fully down to land
once IRIS is a few
inches above the
ground.
left stick
08
Left
Back
Forward
Right
Left
Back
Forward
Right
Left Stick
Yaw
Move the left stick horizontally to rotate IRIS and change orientation.
For a slow rotation, move the stick slightly away from the center
in either direction. Moving the stick farther from the center creates
a faster rotation.
left stick
Move the stick to
the left to rotate
counterclockwise.
Move the stick
to the right to
rotate clockwise.
Release the stick to
stop rotating and
maintain the current
orientation.
Flight Tip
When adjusting orientation, move the left stick horizontally without changing its
vertical position.
09
Forward
Back
Forward
Pitch and Roll
Left
Back
Forward
Left
Back
Forward
Right
The right stick allows you to control IRIS’ position in the air. Move the right
stick to tell IRIS to move in that direction: forward (toward the blue arms),
back (toward the black arms), left (toward the left arms), or right (towards
the right arms). How far you move the stick from the center before releasing
it tells IRIS how fast to move.
right stick
Move the right
stick forward to
fly forward.
Move the right
stick back to fly
backward.
Move the right
stick left to fly
left.
Move the right
stick right to fly
right.
Flight Tip
IRIS moves according to its orientation. The blue arms and white lights face
forward, and the black arms and red lights face backward. Before using the right
stick, use yaw to keep IRIS facing in outward orientation so that the black arms and
red lights face towards you and the blue arms and white lights face away from you.
10
Flight Modes
IRIS includes three flight modes: manual flight
(STD-altitude hold), hover mode (LTR-loiter), and
mission flight (AUTO). Use the switch on the
right side of the controller to select a flight mode.
Standard (altitude hold mode)
STD
fly manually
Start your flight in standard to select altitude hold
mode, and fly IRIS manually using the controller.
Loiter mode
LTR
mode switch
hover
Select loiter to set IRIS to hover in place automatically. Use the
controller to adjust IRIS’ position then release the sticks to hold
that position. Loiter is a great way for beginners to learn how to fly!
If you’re new to flying, start your first flight in loiter instead of standard.
To avoid sudden changes in altitude, set the throttle stick
to center position before switching modes, including in the
event of a GPS failsafe.
Advanced Operator Note: If you choose to modify the flight mode configuration to
include Stabilize mode, please fly only with the provided set of tall legs. Flying in Stabilize
with short legs can cause vibrations that may interfere with autopilot calculations and
produce unexpected behavior.
11
Auto mode
AUTO
fly a mission
Select auto mode to fly an autonomous mission. IRIS will
automatically fly the series of waypoints saved to the autopilot.
See pages 19 and 20 for instructions on planning and flying missions.
Do not activate auto mode unless you have saved a
mission to IRIS using a ground station application.
Gimbal control
TILT
tilt the camera up and down
Connect a Tarot Gimbal (sold separately), and use the TILT knob to
control the angle of the camera in flight. Visit 3dr.com/iris/info for
instructions.
Land
CH 7
land at the current position
Set the CH 7 switch to ON to end your flight and land IRIS at its
current position. Once you activate land, set the throttle stick fully
down, and IRIS will automatically disarm after landing. IRIS will not
disarm automatically unless the throttle stick is set fully down.
Reposition during landing: During landing, use the
right stick on the controller to adjust IRIS’ position.
12
Return to Launch (RTL)
land at the launch point
Set the RTL switch to ON to end your flight and return
IRIS to the launch point automatically. Ensure that the
RTL switch is set to OFF before takeoff.
hover 5 seconds
15 meters
1
When commanded to RTL, IRIS will:
1 Achieve minimum altitude of 15 m (50 ft)
or maintain current altitude if above 15 m.
2 Move to launch point and loiter for 5 seconds.
3 Land at launch point.
Reposition during landing: During landing, use the
right stick on the controller to adjust IRIS’ position.
RTL returns IRIS to the location where IRIS was armed.
Always arm IRIS in a safe, unobstructed launch point.
2
3
launch point
Geofence
A safety fence restricts IRIS to within 300 meters (980 feet) of the
launch point and under 100 meters (320 feet) in altitude. If IRIS reaches
the edge of the geofence, it will initiate an automatic return to launch.
300 m
100 m
launch point
In the event of a GPS failsafe, the horizontal geofence will be disabled.
If IRIS breaches the vertical geofence during a GPS failsafe, it will land at
its current position.
13
First Flight
Select an open area for flying, away from people and buildings, and
remember to bring the Flight Checklist and a fully charged battery.
Determine the boundaries of your flying area before takeoff, and select
a level, unobstructed space as a launch point. Follow these preflight
and postflight steps in the order shown here and on the Flight Checklist
every time you fly.
Preflight
Check
1
IRIS.
Point the controller antenna up
and the IRIS antenna down for
the strongest signal.
Set the mode switch to standard (STD).
If you’re new to flying, try starting your first
flight in loiter (LTR) instead of standard.
2
14
Ensure that the RTL switch
is set to OFF.
Power on
controller.
Ensure that the controller is always turned on while
IRIS is powered. If IRIS loses communication with
the controller in flight, IRIS will initiate an automatic
return to launch.
Connect battery.
3
Press and hold the DN button on the controller to
view flight data from IRIS. See the Flight Checklist
for more information about controller flight data.
Press the sides of the battery
compartment together and
rotate the door down.
Insert battery, and attach the yellow
connectors. To close, squeeze the door,
and rotate up until it clicks into place,
ensuring that the battery cables do not
interfere with the LED cables.
Keep IRIS still and
level while it powers
on and initializes
the sensors.
Place IRIS at the launch point
with the black arms facing
towards you and the blue arms
facing away from you.
Connect the radio to your ground station, and select Connect.
A ground station (recommended) lets you view live data in
flight and unlock IRIS’ advanced autonomous features.
To download a ground station app for you laptop or
Android device, visit 3DR.com/iris/info.
15
Press safety
4
button.
5
Check LED.
Press the safety button
until it is solid red.
IRIS is now live.
Stand back!
Motors inactive, safe to handle
Check the LED to view the status of IRIS. Wait
to proceed until you see the blinking green light
indicating that IRIS has acquired GPS lock.
Initializing, please wait.
Acquiring GPS, please wait.
Autopilot ready, GPS locked
Pre-arm safety check failure. Connect
to a ground station and see the troubleshooting guide at 3DR.com/iris/info.
Do not handle IRIS while the
safety button is solid red and
IRIS is live. Always press the
button until it displays blinking
red before approaching
the propellers.
Motors active, deactivate before
handling
GPS lock requires a clear view of the
sky. IRIS may take a few minutes to
acquire GPS lock depending on your
flying location. Always fly in an open
area to improve GPS signal strength,
and review the GPS failsafe
information on page 7.
6
16
Arm motors.
To activate the motors,
hold the left stick down-right
until the motors spin.
Now you’re ready for takeoff!
IRIS will spin its propellers
when armed. Ensure that the
launch point is clear of
obstructions before arming.
Always disarm the motors
before approaching IRIS.
Flight
Left Stick
Left Stick
Left Stick
Left Stick
Take off and gain altitude by
raising the left stick slightly
above center.
Set the left stick to
center to maintain
the current altitude.
Release the right
stick to level IRIS.
Set the left stick fully
down to land once IRIS
is a few inches above
the ground.
Rotate counterclockwise and
clockwise by
moving the left
stick left and right.
Fly forward, backward, left, or right
by moving the right stick in the
direction you want to fly.
Lower the left
stick below center
to descend.
IRIS is a powerful and agile
!
flier. Move the sticks in small
increments until you feel
comfortable with how IRIS
responds to controls.
17
Postflight
Disarm
1
motors.
After landing, hold
the left stick downleft until the motors
stop spinning.
Disconnect
3
battery.
Tips for New Fliers: Practice these exercises to help you master flight controls.
Skill 1: Hover
Your first step is to maintain a consistent altitude while keeping IRIS oriented so
the black arms face towards you and the blue arms face away from you. Practice
taking off, rising to a comfortable hovering altitude, and keeping IRIS in place
without allowing for any changes in orientation or position. If IRIS drifts forward,
backward, left, or right, or rotates clockwise or counterclockwise, use the
corresponding stick controls to correct.
4
Power off
controller.
Press safety
2
button.
Press the safety
button until it
displays blinking
red to make IRIS
safe to handle.
Your first flight is now complete!
Follow the steps shown here and
on the Flight Checklist every time
you fly.
Skill 2: Box
When you feel comfortable with your ability to maintain a consistent hovering
altitude, try flying a box pattern. To practice this, take off, reach your hovering
altitude, then fly forward, right, backward, and left by making small adjustments
to the right stick. Make sure to fly the box in front of you and not around you.
Use the left stick to rotate IRIS so the black arms face towards you and blue arms
face away from you for the duration of the exercise.
Skill 3: Figure Eight
When you can confidently navigate a box while maintaining altitude and
orientation, try flying a figure-eight pattern. Once again, make sure to fly the figure
eight in front of you and not around you. Use the right stick to create a smooth
flight path while using the left stick to correct orientation and maintain altitude.
18
Planning Missions
To plan a mission, download a ground station application from
3dr.com/iris/info, and install onto your laptop or Android device.
Mission Planner for Windows
DroidPlanner 2 for Android
APM Planner for OS X
Power IRIS, connect the radio to your laptop
1
or Android device, and select Connect.
Connect the blue end of the
Android adapter to your device
and the black end to the radio.
Select Connect.
Configure waypoints.
2
Select Edit and tap to add
waypoints, or select the brush
tool and draw a path for IRIS
to follow.
Save the mission to IRIS.
3
Select the option menu in
the top-right corner, and
select Send Mission.
Connect the USB adapter to the
radio and your laptop. Select
AUTO, 57600, and Connect.
Select Flight Plan, and click to
add waypoints. Select the green
arrows at the bottom of the
screen to configure altitude and
change waypoint types.
Select Write WPs.
When flying missions, we recommend changing the GPS
failsafe behavior to set IRIS to land in the event of a loss of
GPS signal. For instructions, visit 3dr.com/iris/info.
19
Flying Missions
Left Stick
Perform a pre-mission
1
test flight.
Fly a brief test flight to verify
that all controls (throttle, yaw,
roll, and pitch) are responding
normally.
Switch to
AUTO.
3
If you planned a takeoff waypoint into
your mission, switch to AUTO on the
ground, and raise the throttle to initiate
the mission. If you did not add a takeoff
waypoint, switch to AUTO mode after
takeoff to initiate the mission in flight.
To recall IRIS during a mission,
use the controller to switch
to standard (STD) and land
manually. Or switch to RTL,
and automatically return to
the launch point.
Arm IRIS
in standard.
2
When you’re ready
to start the mission,
arm IRIS in standard
(STD).
For auto-takeoff,
raise throttle to
start mission.
To avoid sudden changes
in altitude when switching
from auto to standard (STD),
ensure that the left stick is
set to the center position.
Switch to standard
4
before disarming.
20
When the mission is complete and IRIS has landed,
use the controller to switch to standard (STD) then
disarm and proceed with the postflight steps.
If you added an automatic landing waypoint to your
mission, IRIS will disarm automatically after landing.
Specifications
Autopilot: Pixhawk v2.4.5
Firmware: ArduCopter 3.2
GPS: 3DR uBlox GPS with Compass (LEA-6H module, 5 Hz update)
Telemetry radio: 3DR Radio Telemetry v2 (915 mHz or 433 mHz)
Motors: 920 kV
Frame type: V
Propellers: 9.5 x 4.5 T-Motor multirotor self-tightening counterclockwise (2)
9.5 x 4.5 T-Motor multirotor self-tightening clockwise (2)
Battery: 3S 5.1 Ah 8C lithium polymer
Low battery voltage: 10.5 V
Maximum voltage: 12.6 V
Battery cell limit: 3S
IRIS is compatible with 3S lithium polymer batteries only.
Using a 4S battery can cause permanent damage to the gimbal electronics and will void
the warranty.
Payload capacity: 400 g (.8 lbs)
Radio range: up to 1 km (.6 miles)
Flight time: 16-22 minutes, depending on payload
Resources
Hardware: 3dr.com/iris/info
Firmware: copter.ardupilot.com
Software: planner.ardupilot.com and planner2.ardupilot.com
3DR Store: store.3dr.com
Community: diydrones.com
Happy flying!
21
Learn More
Visit 3dr.com/iris/info to learn about:
» 3PV™ Follow Me and DroidPlanner
» Opening the shell
» Replacing the arms and motors
» Installing software
» Planning a mission
» Updating firmware
» LED meanings and tones
Visit copter.ardupilot.com to learn about:
» Additional flight modes
» Configuring parameters, including yaw behavior during
autonomous flight, descent speed during RTL, and more
Visit planner.ardupilot.com (Mission Planner) and
planner2.ardupilot.com (APM Planner) to learn about:
» Planning a mission with waypoints and events
» Using a ground station to command IRIS in flight
» Downloading and analyzing flight logs
Join the community and share your experience at
diydrones.com.
Follow us on Facebook and Twitter @3drobotics.
Support
For customer support, contact us at help@3dr.com
or call our support line at +1 (858) 225-1414
Monday through Friday, from 8 am to 5 pm, PST.
Iris+ Operation Manual vE | ©3D Robotics, Inc. | 29 October 2014
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