©2012-2013 DJI Innovations. All Rights Reserved. 

1

iOSD (On Screen Display) 

User Manual 

 

V2.10 

For iOSD Firmware Version V3.01 & iOSD Assistant V4.0* 

 

April 7, 2014 

 

 

* iOSD Firmware V3.01 compatible with iOSD Assistant V4.0.

www.dji-innovations.com
©2012-2013 DJI Innovations. All Rights Reserved. 

2

Disclaimer 

Thank you for purchasing product(s) from DJI Innovations. Please read the instructions carefully before installing the 

hardware and software for this product, this will ensure trouble free operation of your iOSD. Please use DJI products in 

accordance with the provisions of your local authorities and regulations.

As DJI Innovations has no control over use, setup, final assembly, modification (including use of non-specified DJI parts i.e. 

motors, ESCs, propellers, etc.) or misuse, no liability shall be assumed nor accepted for any resulting damage or injury. By 

the act of use, setup or assembly, the user accepts all resulting liability. DJI Innovations accepts no liability for damage(s) 

or injured incurred directly or indirectly from the use of this product.

DJI and iOSD are registered trademarks of DJI Innovations. Names of products, brands, etc., appearing in this manual are 

trademarks or registered trademarks of their respective owner companies. This product and manual are copyrighted by 

DJI Innovations with all rights reserved. No part of this product or manual shall be reproduced in any form without the 

prior written consent or authorization of DJI Innovations. No patent liability is assumed with respect to the use of the 

product or information contained herein.

Contents 

Disclaimer ............................................................................................................................................................. 2

Contents............................................................................................................................................................... 2

Introduction .......................................................................................................................................................... 3

In the Box.............................................................................................................................................................. 4

Assembly............................................................................................................................................................... 5

Display Description ................................................................................................................................................ 7

Test...................................................................................................................................................................... 9

Assistant Software ............................................................................................................................................... 10

Software and Driver Installation....................................................................................................... 10

Assistant Software GUI................................................................................................................... 10

Assistant Software Usage................................................................................................................ 10

Firmware & Assistant Software Upgrade ...........................................................................................11

Appendix ............................................................................................................................................................ 13

Port Description............................................................................................................................. 13

Specifications ................................................................................................................................ 14

Trouble Shooting ........................................................................................................................... 15

Some Descriptions for the iOSD Version1.0...................................................................................... 16

Connection Between iOSD and Autopilot System ............................................................................. 17
©2012-2013 DJI Innovations. All Rights Reserved. 

3

Introduction 

DJI iOSD is specially designed for DJI autopilot system during the FPV flight or other aero-modeling activates. DJI iOSD

can transmit video and iOSD information in real time, which will help you to obtain the aircraft status information during a

FPV flight. It can display power voltage, flight velocity, height, distance from the home point, horizontal attitude, GPS 

satellite number, etc. iOSD and video information are superposed on the receiver, making iOSD data clearly visible and 

bringing you a more involved flight experience.

DJI iOSD should be used in conjunction with a DJI autopilot system. It supports two video input sources under PAL or 

NTSC mode, which can be selected remotely by an R/C transmitter switch. The R/C TX switch can also change the 

wireless video transmitter channel remotely when user uses the wireless video transmitter specified by DJI. The iOSD

supports online upgrades. The iOSD has built-in BEC, which is on one hand for the power supply of the camera, on the 

other hand for the power supply of the autopilot system’s main controller to improve the power supply reliability of the 

main controller.

Specified autopilot systems for the iOSD

Status Autopilot system & Aircraft 

Supported A2, WKM, NAZA-M*, NAZA-M V2*, PHANTOM 2

Not yet supported WKH、ACE ONE、ACE WAYPOINT

*iOSD should be connected to the NAZA-M or NAZA-M V2 via the PMU V2 (NAZA-M V2 Accessory).

*iOSD should not be connected to the WKM and NAZA-M/ NAZA-M V2 at the same time.

*NAZA-M should be upgrade to the firmware version of V3.16 (or above), with the same assistant software V2.16 of 

Naza-M V2.
©2012-2013 DJI Innovations. All Rights Reserved. 

4

In the Box 

iOSD Controller ×1

Connect the iOSD controller to your DJI autopilot system via 

CAN-Bus Cable. It communicates with the main controller, 

receives data from the main controller, superimposes the data 

with the video image, and then transmits the whole information 

via a transmitter.

CAN-Bus Cable ×2

Connect the iOSD to your autopilot system through a CAN-Bus 

cable.

dJ

d

I

JI

dJI

dJI

Video Input Cable ×1 

Connect the iOSD with video input source (i.e. camera or DJI 

Z15) for video input and power supply, with maximum current 

of 1A. If you connect the iOSD to DJI Z15, please use the 4PinAudio Head cable.

If connect to other camera, use the 4Pin cable for the

connection in accordance with the wiring diagram.

Video Output Cable ×2 

Only when you use the wireless video transmitter module 

specified by DJI, you can use the bi-port cable to connect the 

iOSD with the video transmitter module. Otherwise, you can 

use the one-port cable for your own connection in accordance 

with the wiring diagram.

2-PIN to 3-PIN Cable ×1 

Connect the iOSD with the R/C receiver through this cable.

When there are two video signal inputs, it is used for the 

selection of video signal sources. It can be used for the 

selection of AVL58 video channel.
©2012-2013 DJI Innovations. All Rights Reserved. 

5

Assembly 

1. Fix the iOSD controller on your aircraft.

2. Connect the iOSD with the video signal source, wireless video TX module, DJI autopilot system and R/C 

receiver. Make sure the connection is correct in accordance with the wiring diagram.

3. Setup a 3-position switch on the R/C TX as the iOSD control switch.

4. Connect your wireless video RX module with the display screen.

Please refer to DJI autopilot system manual, your TX manual, and your wireless video RX for more details.

3-Position Switch Control 

Choose a 3-position switch and make sure you connect the correct channel of the receiver to the iOSD switch port.

 Position -1 Position -2, (hold position -2 for 1.5s): every toggle from Position -1 to Position -2 increases the 

channel of the wireless video transmitter module by 1 (from CH1 to CH8), only for the wireless video 

transmitter module specified by DJI.

 Position -3 Position -2, (hold position -2 for 1.5s): toggle the switch to select the required video input, when 

there are two video inputs. Only the toggle from Position -3 to Position -2 can change the video input source.

AV1 is default.

 

Position -1 Position -2 Position -3
©2012

-2013 DJI Innovations. All Rights Reserved. 6

DJI

AutopilotSystem

BATT

WirelessVideoRX

PMU

VideoInputPort

·IfyouusetheDJIZ15,itisrecommendedtousethe4Pin-AudioHeadcableforconnectingtheiOSDandGCU.

Ifyouusethe4Pincable,pleaseconnecttheiOSDtotheZ15'sGCUaccordingtotheabovechart.

·Ifyouuseyourowncamera(s),pleaseconnectthroughtheVideoInputCableaccordingthepindescription.

AV1/AV2pin:youcanselecttherequiredinput.AV1isdefault.POWERpin:supplypowerforVideoinput

sourcesuchasacamera,withthemaximumcurrentof1A.Ifthebatteryis3SLiPothen:OutputVoltage=Input

Votage.If4S~6Sthen:OutputVoltage=11.2V.Makesureyourcameraisratedforthisvoltageand

current(1A),ifnot,pleaseuseaseparatebatterysupply.

·IfyouuseotherwirelessvideotransmitterandtheratedvoltageisoverthevoltageofBATT+,youcanusethe

POWERpintoapplypower.Makesurethetotalcurrentconsumptionofwirelessvideotransmitterandcamera

islowerthan1A,otherwisewilldamageyouriOSD.

AircraftEnd

GroundEnd

R/CReceiver

3-positionswitch

WirelessVideoTransmitter

SpecifiedbyDJI(AVL58)

Other

WirelessVideoTransmitter

Negativevoltageofbattery(=BATT-)

Positivevoltageofbattery(=BATT+)

ChannelControl

VideoGND

VideoandOSDoutput

Or

DJIZ15GCU

AVInput1

Power

Ground

AVInput2

Power

Ground

Camera1

Camera2

Or

AVL58

TRANSMITTER

VideoOutputPort

·IfyouusewirelessvideotransmissionmoduleAVL58specifiedbyDJI,connectthroughthebi-portcable.

·Ifyouuseyourownmodule,pleaseconnectthroughtheone-portcableaccordingthepindescription.

ChannelControlpin:Controlsignalforthevideotransmitterchannelnumber(CH1.....CH8).Ifyourvideo

transmitterdoesnotsupportthisfeature,thenignorethispin.

VideoandOSDoutputpin:makesurethisiscorrectlyconnected.

Positive/Negativevoltageofbatterypin:itsoutputvoltageisequatetothevoltageofthebattery,supplying

powerforyourwirelessvideotransmitter.Itisrecommendedtosolderthetwocablesofthesamefunction.

Pleasemakesuretheinputvoltageofyourownwirelessvideotransmitterismatchedtothevoltageof

BATT,topreventdamagefromyourwirelessvideotransmittermodule.Forexample,iftheBatteryis

6S(25V)andtheinputvoltageofthewirelessvideotransmitteris3S(12V),thenyoucannotusethe

BATT+tosupplypowersincethe25Vislargerthan12V.

!

!

AV1

Signal

GND

GND

Important:iOSDcanbeconnectedtoanyCAN-BusportoftheWKMsystem,BUTshouldbeconnectedtotheNAZA-MorNAZA-M

V2viathePMUV2(NAZA-MV2Accessory).NAZA-MshouldbeupgradedtothefirmwareversionofV3.10orabovewhenusing

withthePMUV2,withthesameassistantsoftwareV2.10ofNAZA-MV2.iOSDshouldnotbeconnectedtotheWKMandNAZA-

M/NAZA-MV2atthesametime.RefertotheAppendixformoreconnectiondetails.

DisplayScreen

12.0V

1m

ATT

FS

00.

0

DH

P0

o

R0

o

CHAV1

0.0

ms

500

Az34°

90% 
©2012-2013 DJI Innovations. All Rights Reserved. 

7

Display Description 

The iOSD information is displayed on the screen as shown below.

12.0V

1m

ATT

FS

0

0.0

1

3

4

7 9 10

DH

P 0o

R 0o

5

6

8

13

CH AV1

m 0.0 s

2

11

12

14

45~179 45~179

5

0

0

15

16

17 Az 34°

90%

18

NO. Function Display Description 

1 Power voltage 、 blink

Real time battery voltage of the aircraft power, unit in V. (For 

PHANTOM 2 there will be current battery level percentage shown in 

addition.)

Blink: first level low-voltage alert, the alert threshold is same to the 

protection voltage value set in the assistant software.

2 Channel

CH1、

CH2、......CH8 

Wireless video transmitter channel selection.

3

Distance between 

aircraft and home 

points

D

When the home point is successfully recorded, this item will show, unit 

in m.

4 Height

H

The vertical height between the aircraft and the take-off point, unit in 

m.

5 Control mode ATT、M、GPS

The autopilot system control mode.

 ATT is Atti mode

 GPS is GPS Atti. mode

 M is Manual mode

6 Fail-safe mode

FS 、 APT 、

GHome

 FS is in Fail-safe mode

 APT is in ground station mode

 GHome is in go home status

7 Pitch attitude P 0o Positive value means the aircraft nose is up; negative value means the 
©2012-2013 DJI Innovations. All Rights Reserved. 

8

aircraft nose is down.

8 Roll attitude R 0o

Positive value means the aircraft is right. 

Negative value means the aircraft is left.

9 Flight velocity 0.0m/s The aircraft horizontal speed.

10 GPS satellite

0

Number of GPS satellites acquired.

11 Video input AV1、AV2 Video input source selected, AV1 or AV2 can be chosen.

12

Aircraft nose 

direction 、 、

Display the relative angle between aircraft nose and home point. The 

aircraft nose is pointing to the home point when the icon is in the 

middle of the screen, this may help you to bring back the aircraft by 

distinguishing the aircraft nose direction.

For example, when the icon on your display screen is located in the 

Orientation-3 as shown in the following figure, you can change the 

aircraft nose direction through operating your R/C TX. When the icon 

arrives at the Orientation-1, your aircraft nose is heading the home 

point, which can help you pull your aircraft back to the home point 

easily.

Home point

Orientation-4 Aircraft nose direction 90 135 Display Screen

Aircraft Orientation-1 Orientation-2 Orientation-3 Orientation-5

Orientation-3 Orientation-1 Orientation-2 Orientation-5 Orientation-4 13 Vertical velocity

0.0 、

0.0 :Upward speed

:Downward speed

14 Attitude line

Use attitude line for aircraft attitude observation 

 craft up: 

 craft down: 

 craft left: 

 craft right: 
©2012-2013 DJI Innovations. All Rights Reserved. 

9

15 Gimbal Attitude

5

0

0

Display the 3- axis attitude of the gimbal when a gimbal is used.

5

0

0

Roll Direction

Pitch Direction

Yaw Direction

16

Compass error 

indicator blink

For NAZA-M user, Blinking will appear when compass has errors, 

please calibrate your compass.

17 Azimuth angle Az(0

o ~360o

)

N

180°

S

0°

Az=225° Home Point Aircraft

90° H

D

W 270° E

Azimuth angle is a horizontal angle 

measured clockwise from the North 

base line to the line goes through the 

home point and aircraft position. 

Users can locate the aircraft by 

calculating the aircraft position using 

Az

D , 

H.

18 Airport alert Blink

Blinks when the aircraft enters a no-fly zone*. 

Disappears when the aircraft exits no-fly zone. 

Notes: 

* For more information about the no-fly zones, visit www.dji.com and download the Phantom 2 User Manual.

Test 

Please use the following procedures to test your installation, in order to make sure the iOSD is working properly.

1. Ensure batteries are fully charged for R/C transmitter, iOSD and all the other devices on your aircraft.

2. Make sure all connections and wiring are correct and secure.

3. Make sure the communication between the wireless video RX and TX modules is normal.

4. Switch on the R/C transmitter, and power on the iOSD and autopilot system.

5. Check the LED indicator on the iOSD. The iOSD is powered when the LED is on.

6. If there are two video inputs, please select an input by toggling the TX 3-position switch; otherwise, please 

skip to the next step.

7. If you use the wireless video RX and TX modules specified by DJI, please select the channel you require by 

toggling the TX 3-position switch; otherwise, please skip to next step.

8. Observe the display screen to make sure the video and iOSD information are displaying on the screen.

 
©2012-2013 DJI Innovations. All Rights Reserved. 

10

Assistant Software 

Software and Driver Installation 

1. Please download driver installer and assistant software from the iOSD page of DJI website. 

2. Connect the iOSD Controller and the PC via USB cable, power on the iOSD Controller system.

3. Run driver installer, and follow the instructions strictly to finish installation.

4. Run assistant software installer, and follow the instructions strictly to finish installation.

Assistant Software GUI 

iOSD Setting Data View Software Version & Firmware Version, etc

Text Indication

Main

Data Communication Indicator PC Connection Indicator

Warnings Setting

Assistant Software Usage 

Using the assistant software, adjust the display position of the iOSD information, upgrade the firmware and assistant 

software are available. In addition, the flight data will automatically be saved as files in the iOSD, which can be viewed by 

connecting to the PC.

1. Power on your computer.

2. Make sure the iOSD is power on. Connect the iOSD Controller to the PC with a USB cable. (If the iOSD is 

connected to the autopilot system and both of them are power on, and then switch on the transmitter first.)
©2012-2013 DJI Innovations. All Rights Reserved. 

11

3. Run the iOSD Assistant Software.

4. If the Data Communication Indicator is Red on, please double check the connections and driver installation; 

otherwise if the indicator is blinking Green, go to next step.

5. Select the Main item to adjust the display position of the iOSD information if necessary. And then configure the 

warning of GPS Satellite Number, Distance and Height Range if warnings are required.

6. Click the DataView item, and follow the tips to get the flight attitude data, main control input and output

information, etc.

Note: 

(1) If you do not configure the Warnings Setting, the iOSD will show warnings in default values.

(2) It will auto detect the firmware version when you open the assistant software and prompt the check for updates 

window if your version is not the latest one.

(3) If enter the Data View mode, the iOSD controller will temporarily quit the parameter configuration mode, and 

act as a USB Device to connect to the PC. You can manually select and read any data file from the USB Device. 

If you need to re-enter the parameter configuration mode, please power cycle the iOSD.

(4) The speed of data loading will be very slow for large files. For the large file on the iOSD controller, please copy 

the file to the local hard drives of the PC, and then open the file for viewing.

(5) The Compass Data Recording is added in the iOSD Firmware version V2.00 (or above); you can read the 

Compass data in the DataView item of the iOSD assistant software V2.00.

Firmware & Assistant Software Upgrade 

Please follow the procedure for firmware upgrade; otherwise the iOSD might not work properly.

1. Make sure your computer is connected to the Internet. Please close all the other applications during the 

firmware upgrade, including anti-virus software and firewall.

2. Make sure the power supply is securely connected. DO NOT un-plug the power supply until firmware upgrade 

has finished.

3. Connect the iOSD to PC with Micro-USB cable, DO NOT break connection until firmware upgrade is finished.

4. Run the assistant software and wait for connection.

5. Select InfoSoftware and Firmware.

6. DJI server will check your current software and firmware version, and get the latest software and firmware 

prepared for the unit.

7. If there is a software version more up-to-date than your current version, you will be able to click to download the 
©2012-2013 DJI Innovations. All Rights Reserved. 

12

new version. Please re-install the assistant software follow the prompts

8. If there is a firmware version more up-to-date than your current version, you will be able to click to update them. 

9. Wait until Assistant software shows “finished”. 

10. Click OK and power cycle. Your unit is now up-to-date.

 

 

Note: 

If firmware upgrade failed, the iOSD will enter waiting for firmware upgrade status automatically, please try again 

with the above procedures.
©2012-2013 DJI Innovations. All Rights Reserved. 

13

Appendix 

Port Description 

 

Power Battery Input Port,input voltage range: 11V~26V

 

Control Signal Input Port,for wireless video module channel selection and video input source 

selection

 

Video Signal Output Port

 AV-OUT:Video Signal Output, including both video and iOSD information

 AV- GND:Video Signal Ground

 UART: transmit the wireless channel control signal to the wireless video transmitter (For 

example AVL58)

 BATT+:it is equate to the Positive Voltage of Battery

 BATT-:it is equate to the Negative Voltage of Battery

 

Video Input Port,2 input sources are available, and the default setup is AV1

 AV1:Video Input Source 1

 AV2:Video Input Source 2

 POWER:11~13V, supply power for video input source with the maximum current of 1A

 GND:Ground

 Micro-USB Port:Connects the iOSD with PC for firmware upgrade

 

CAN-Bus : Communication of the iOSD with autopilot system through CAN-Bus

LED LED indicator for power
©2012-2013 DJI Innovations. All Rights Reserved. 

14

Specifications 

Performance Parameter 

Video Input Mode PAL/NTSC

Video Output Mode PAL/NTSC

Physical 

Temperature (V1.0) 

(Mark II) 

-20~70oC

-20~60oC

Size 52mm X 41mm X 11mm

Weight (V1.0) 

(Mark II) 

42g

56 g

Hardware Supported 

Voltage 3S~6S(LiPos)

Current (Typical Value) (V1.0) 

(Mark II) 

51mA@25.2V; 87mA@12.6V

60mA@25.2V; 103mA@12.6V

Rated Power 1.25W

Controller Supported WKM, NAZA-M, NAZA-M V2

Software Supported 

Built-in Functions  iOSD Information Transmission 

  Video Transmission,2 Video Signal input Channels/Switchable

 

 Remote channel selection of the Wireless Video Transmitter Module, when 

using the video transmitter specified by DJI

 Built-in BEC: improve the reliability of power supply for the main controller

  DJI Z15 Supported
©2012-2013 DJI Innovations. All Rights Reserved. 

15

Trouble Shooting 

No. What Why How to 

1

Only iOSD information, 

video signal loss.

Video input error.

Make sure the connection between iOSD

controller and video input port is OK.

2

Only video signal, iOSD

information loss.

Connection between 

iOSD controller and 

autopilot system error.

Make sure the connection between iOSD

controller and DJI autopilot system is OK.

3

Both video signal and iOSD

information loss.

Signal transmission 

error.

 Make sure the Wireless Video 

Transmitter Channel Setting is correct.

 Make sure the communication between 

the video transmitter and the receiver 

is working correctly.

4

Both video signal and iOSD 

information loss.

The video signal cable 

to display screen is 

unconnected or short 

circuit.

Make sure the connection of video signal 

cable is OK.
©2012-2013 DJI Innovations. All Rights Reserved. 

16

Some Descriptions for the iOSD Version1.0 

There is an adapter for the Version1.0, to solve the problem that the iOSD is incompatible with your camera. If there is 

the incompatible problem with your device, please contact your authorized dealer to get an adapter for free.

There are two adapter versions, including SA0 and SA0 for Z15. If the iOSD is working with the Z15, please use the 

version of SA0 for Z15, otherwise if with your camera, use the SA0. Please connect the adapter according to the below 

figure.

Using the SA0:

Camera1

Camera2 AV Input2 Power Ground

AV Input1 Power Ground DJI

iOSD

Using the SA0 for Z15:

DJI Z15 GCU DJI

iOSD
©2012-2013 DJI Innovations. All Rights Reserved. 

17

Connection Between iOSD and Autopilot System 

 

Connection Between iOSD and NAZA-M/NAZA-M V2 

1. If use with DJI multi-rotor, you can solder the power cable of the PMU V2 to the power pads on frame 

bottom board. Please refer to DJI multi-rotor manual for details. Then connect the iOSD to a battery.

2. If use with 3rd part aircraft, you can make a connecter by yourself to connect PMU V2 and battery.

(1) NAZA-M (Fig.1): Make a connecter to connect the PMU V2 (NAZA-M V2 Accessory), iOSD, VU and 

battery.

(2) NAZA-M V2 (Fig.2): Make a connecter to connect the PMU V2, iOSD and battery.

Disconnected

Connecter made by yourself

Battery

Fig.1 Connection between iOSD and NAZA-M

Connecter made by yourself

Battery

Fig.2 Connection between iOSD and NAZA-M V2

 

Connection Between iOSD and WKM (Fig.3) 

Battery

Fig.3 Connection between iOSD and WKM