dji OSD User manual

©2012 DJI Innovations. All Rights Reserved. 1
OSD (On Screen Display)
User Manual
V1.0
2012-09-12
www.dji-innovations.com

©2012 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 OSD.
Please use DJI products in accordance with the provisions of your local authorities and regulations.
DJI Innovations accepts no liability for damage(s) or injured incurred directly or indirectly from the use of
this product.
DJI is a registered trademark 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.

©2012 DJI Innovations. All Rights Reserved. 3
Introduction
DJI OSD is specially designed for DJI autopilot system during the FPV flight or other aero-modeling
activates. DJI OSD can transmit video and OSD 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. OSD and video information are
superposed on the receiver, making OSD data clearly visible and bringing you a more involved flight
experience.
DJI OSD 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 transmission channel remotely when user uses the wireless
video transmitter module specified by DJI. The OSD supports online upgrades.
Specified autopilot systems for the OSD
Status
Autopilot system
Supported
WKM
Not yet supported
WKH、ACE ONE、ACE WAYPOINT
Index
Disclaimer..............................................................................................................................................2
Introduction............................................................................................................................................3
Index .....................................................................................................................................................3
Contents................................................................................................................................................4
Assembly...............................................................................................................................................5
Display Description................................................................................................................................7
Test .......................................................................................................................................................9
Appendix .............................................................................................................................................10
Port Description............................................................................................................................10
Specifications ............................................................................................................................... 11
Trouble Shooting...........................................................................................................................12

©2012 DJI Innovations. All Rights Reserved. 4
Contents
OSD Controller ×1
Connect the OSD controller to your DJI autopilot
system via CAN-Bus. 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 ×1
Connect the OSD to your autopilot system through a
CAN-Bus cable.
DJI
DJI
Video Input Cable ×1
Connect the OSD with video input source (i.e.
camera or DJI Z15) for video input and power
supply.
Only when you use the DJI Z15, you can use the
bi-port cable directly for the connection. Otherwise,
you can use the one-port cable for your own
connection in accordance with the wiring diagram.
Video Output Cable ×1
Only when you use the wireless video transmitter
module specified by DJI, you can use the bi-port
cable to connect the OSD 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 OSD 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.

©2012 DJI Innovations. All Rights Reserved. 5
Assembly
STEP1. Fix the OSD controller on your aircraft.
STEP2. Connect the OSD 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.
STEP3. Setup a 3-position switch on the R/C TX as the OSD control switch.
STEP4. Connect your wireless video RX module with the display screen.
3-Position Switch Control
Choose a 3-position switch channel and make sure you connect the correct channel of the receiver to
the OSD 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.
Position -1 Position -2 Position -3

©2012 DJI Innovations. All Rights Reserved. 6
Display Screen
WKM
Autopilot System
B
A
T
T
Wireless Video RX
PMU
12.0
V
1m
ATT
FS
0
0.0
D
H
P 0o
R 0o
CH AV1
m
0.0 s
AV Input 1
Power
Ground
AV Input 2
Power
Ground
Video Output Port
· If you use wireless video transmission module
specified by DJI, connect through the bi-port
cable as shown.
· If you use your own module, please connect
through the one-port cable according the pin
description.
· Channel Control：Control signal for The video
transmitter channel number (CH1…..CH8).If
your video transmitter does not support this
feature, then ignore this pin.
Video and OSD output: make sure this is
correctly connected.
Video Input Port
· If you use the DJI Z15, please connect the OSD to
the GCU of the Z15 through a bi-port cable as
shown.
· If you use your own camera(s), please connect
through the one-port cable according the pin
description. AV1、AV2：You can select the
required input. AV1 is default. POWER：supply
power for video input source such as a camera.
If battery is 3S Lipo then: Output Voltage = Input
Votage
If 4S~6S then: Output Voltage=11.2V
Make sure the video input source is rated for this
voltage, if not, and then please use a separate battery
supply
Aircraft End
Ground End
R/C Receiver
3-position switch
Camera1
Camera2
DJI Z15 GCU
Wireless Video Transmission
Module Specified by DJI
Wireless
Video TX
＝Negative voltage of battery
＝Positive voltage of battery
Channel Control
Video Ground
Video and OSD output

©2012 DJI Innovations. All Rights Reserved. 7
Display Description
The OSD information is displayed on screen as shown below.
12.0V
1m
ATT
FS
0
0.0
1
3
4
10
79
D
H
P 0o
R 0o
5
6
8
13
CH AV1
m
0.0 s
211
12
14
45~179
45~179
NO
Function
Display
Description
1
Power voltage
、 、 blink
The aircraft power battery voltage, unit in V.
：First level protection alarm
blink：Second level protection alarm
2
Channel
CH1、CH2、……CH8
Wireless video transmission 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 GPSAtti. mode
M is Manual mode
6
Fail-safe mode
FS、APT、GHome
FS is in Fail-safe mode
APT is in ground station mode

©2012 DJI Innovations. All Rights Reserved. 8
GHome is in go home status
7
Pitch attitude
P 0o
Positive value means the aircraft nose is up;
negative value means the aircraft nose is down.
8
Roll attitude
R 0o
Positive value means the aircraft is left.
Negative value means the aircraft is right.
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 is in the middle of
the screen, this may help you to bring back the
aircraft by distinguishing the aircraft nose
direction.
Home point
Orientation-4
Aircraft nose direction
90 135
Display Screen
Aircraft
Orientation-1
Orientation-2
Orientation-3
Orientation-5
Orientation-1 Orientation-2
Orientation-3
Orientation-4
Orientation-5
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 DJI Innovations. All Rights Reserved. 9
Test
Please use the following procedures to test your installation, in order to make sure the OSD is working
properly.
STEP1. Ensure batteries are fully charged for R/C transmitter, OSD and all the other devices on
your aircraft.
STEP2. Make sure all connections and wiring is correct and secure.
STEP3. Make sure the communication between the wireless video RX and TX modules is normal.
STEP4. Switch on the R/C transmitter, and power on the OSD and autopilot system.
STEP5. Check the LED indicator on the OSD. The OSD is powered when the LED is on.
STEP6. If there are two video inputs, please select an input by toggling the TX 3-position switch;
otherwise, please skip to the next step.
STEP7. 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.
STEP8. Observe the display screen to make sure the video and OSD information are displaying
on the screen.

©2012 DJI Innovations. All Rights Reserved. 10
Appendix
Port Description
OSD
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 OSD information
AV- GND：Video Signal Ground
UART：UART signal，transmit the channel control signal to wireless video
transmitter
BATT+：Positive Voltage of Power
BATT－：Negative Voltage of Power
Video Input Port，2 input sources are available
AV1：Video Input Source 1
AV2：Video Input Source 2
POWER：11~13V, supply power for video input source
GND：Ground
Micro-USB Port：Connects the OSD with PC for firmware upgrade
CAN-Bus : Communication of the OSD with autopilot system through CAN-Bus
LED
LED indicator for power

©2012 DJI Innovations. All Rights Reserved. 11
Specifications
Performance Parameter
Video Input Mode
PAL/NTSC
Video Output Mode
PAL/NTSC
Physical
Temperature
-20~70oC
Size
52mm X 41mm X 11mm
Weight
42g
Hardware Supported
Voltage
3S~6S
Current (Typical Value)
[email protected]
[email protected]
Rated Power
5W
Controller Supported
WKM
Software Supported
Built-in Functions
OSD 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
DJI Z15 Supported

©2012 DJI Innovations. All Rights Reserved. 12
Trouble Shooting
No.
What
Why
How to
1
Only OSD information，
video signal loss.
Video input error.
Make sure the connection between
OSD controller and video input port
is OK.
2
Only video signal，OSD
information loss.
Connection between
OSD controller and
autopilot system
error.
Make sure the connection between
OSD controller and DJI autopilot
system is OK.
3
Both video signal and
OSD 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.