©2013 DJI Innovations. All Rights Reserved 

BTU (Bluetooth Unit) Manual V1.04

BTU Bluetooth Unit is used with NM Assistant for wireless communication between 

the autopilot system and mobile device. For NAZA-M Firmware V3.16 or above.

Supported Mobile devices 

iPhone 4s、iPhone 5、iPod touch5、iPad mini、iPad3、iPad4

Specifications 

Bluetooth version 4.0 or above Weight 17g 

Communication distance 50m Consumption 240mw(0.04A@6V)

Environment temperature -10°C~+50°C Dimensions 25.4mm×25.4mm×7.2mm

Step 1: Connection 

Connect the BTU to NAZA PMU V2 (Accessory of NAZA-M V2)

CAN-Bus port,for power supply and communication

Antenna, the side with LOGO should

be facing upwards when mounting, and avoid blocking. BTU Status Indicator Abnormal

Normal

Data communicating

Step 2: Usage of NM Assistant 

1. Search the NM Assistant in App store on mobile device, or scan the 

QR code on package to download the App and install it.

2. Enable the Bluetooth function on the mobile device.

3. Power on the autopilot system, make sure the BTU Status Indicator is 

solid Green.

4. Run the NM Assistant. You may be asked to register through internet 

when first login (the account of PC Assistant software is OK for login);

follow the tips to set Main Controller name and password. 
©2013 DJI Innovations. All Rights Reserved

5. Make sure NM Assistant and autopilot system connect successfully.

6. Set flying parameters in NM Assistant.

Step3: Flying test 

Prepare the aircraft and make sure all connections are ok. Start Motors to takeoff the 

aircraft.

View flying parameters. Set gain value.

Set gimbal parameters.

Only gain value and gimbal parameter are available to configure during 

flying; other parameters can be set only after landing.

FAQ 

Problems Reasons Solutions 

Status Indicator of 

BTU is not solid 

Green on.

Firmware of MC is out of date. Please update firmware.

BTU and autopilot system 

connection failure.

Please check the connection.

BTU damage. Please contact your dealer.
©2013 DJI Innovations. All Rights Reserved

CE Statement 

SZ DJI TECHNOLOGY CO. LTD declares that this device is in compliance with the 

essential requirements and other relevant provisions of Directive 1999/5/EC.

FCC Statement:

This equipment complies with FCC RF radiation exposure limits set forth for an 

uncontrolled environment. 

This device complies with part 15 of the FCC rules. Operation is subject to the 

following two conditions: (1) this device may not cause harmful interference, and (2) 

this device must accept any interference received, including interference that may 

cause undesired operation.

NOTE: The manufacturer is not responsible for any radio or TV interference caused 

by unauthorized modifications or changes to this equipment. Such modifications or 

changes could void the user’s authority to operate the equipment.

NOTE: This equipment has been tested and found to comply with the limits for a Class 

B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to 

provide reasonable protection against harmful interference in a residential installation. 

This equipment generates uses and can radiate radio frequency energy and, if not 

installed and used in accordance with the instructions, may cause harmful interference 

to radio communications. However, there is no guarantee that interference will not 

occur in a particular installation. If this equipment does cause harmful interference to 

radio or television reception, which can be determined by turning the equipment off 

and on, the user is encouraged to try to correct the interference by one or more of 

the following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and receiver.

-Connect the equipment into an outlet on a circuit different from that to which the 

receiver is connected.

-Consult the dealer or an experienced radio/TV technician for help.