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04

Features

• Tri-black cable: to connect the programming port on the ESC or
   one end of the Y harness.
• Short black line: it's the  antenna to enhance  the  Bluetooth signals.
• LED light: to indicate the working status of OTA Programmer.
• RESET button: to factory reset this  OTA Programmer.

RESET Button

Short Black Line

LED Light

Tri-black

Introduction

CAUTIONS

Thank you for purchasing this HOBBYWING product! For avoiding 
any possible troubles that you may have in use, please take time to 
read through this manual before the use. In addition, please note 
the use conditions and technical parameters of this product.

ATTENTION

01

Specifications:

02

03

Applications

07

Explanations for LED Status

08

Factory Reset

The OTA Programmer module works with the following products of HOBBYWING.
• Some of XERUN series & EZRUN series of car ESCs.
• Some of PLATINUM series of aircraft ESCs.
• Some of SEAKING series of boat ESCs.
• For details, please refer to ESC manual to ensure if the ESC can work with OTA Programmer.

1. Android Version

    Users can download the app from HOBBYWING website or GOOGLE PLAY.

2. iOS Version

    Users can visit Apple's App Store, search "hobbywing",  and click the "download" icon to download the app.

OTA Programmer is a module which adopted the Bluetooth communication 
technology for transferring data between an ESC and a smart device (Android 
phone, tablet, and etc). It makes the wireless communication between ESC and 
smart device possible; user can easily program and upgrade ESC, and monitor 
data transferring via this unit.

• Working Voltage: 5V-12.6V.
• Supported Bluetooh Version : 

 4.0

• Effective Range: 0-3m  (Open Field).
• Size: 30.0x25.5x8.5mm (LxWxH).
• Weight: 10.2g.

LED turns on solid RED indicating the  OTA Programmer is successfully powered on and it functions well.
LED blinks indicating the  OTA Programmer is building the connection or transferring data between the ESC and the smart device.

Keep holding the  RESET button  with a thin and sharp thing like toothpick\tweezer or something  for about  5 seconds,  release the RESET button when the LED is flashing, 
then  you can reset  all parameters of the  OTA Programmer to factory default  values.

09

FCC Information

06

User Guide

05

 Download (of HOBBYWING HW Link APP)

How to Connect OTA Programmer to Different ESCs

1

The way to connect OTA Programmer to ESC may vary because of different ESC hardware design. The following are the ways to connect OTA Programmer to different 
ESCs, about which way you should take, please refer to the user manual of your ESC. In some case, the special Y harness (As shown picture 1: with three female 
connectors not two female connectors and one male connector) included in the package may be needed for connecting the OTA Programmer to ESC.

1. For ESC with the throttle cable and programming cable multiplexed. 

   1.1 For ESC with built-in BEC: in this case, a piece of Y harness is needed to connect the  OTA Programmer and ESC. To be specific, connect the ESC throttle cable and  
         OTA Programmer tri-black cable to connector A and connector B of the Y harness respectively (as shown picture 3).
   1.2 For ESC without built-in BEC: in this case, a piece of Y harness is also needed to connect the  OTA Programmer and ESC. To be specific, connect the ESC throttle          
         cable and OTA Programmer tri-black cable to connector A and connector B of the Y harness respectively. And connect the remaining end (/connector C) of the Y 
         harness to an UBEC to power the OTA Programmer (as shown picture 3).

2. For ESC that the fan port (on the ESC) is also the programming port

    In this case, please unplug the fan wire first, and then plug the tri-black cable on the OTA Programmer to the fan/programming port (as shown picture 2).

3. For ESC with a separate programming cable

    3.1 For ESC with the programming cable which has the output voltage of 5-12.6V: in this case, a piece of Y harness is needed to connect the OTA Programmer and ESC. 
         To be specific, connect the ESC throttle cable and OTA Programmer tri-black cable to connector A and connector B of the Y harness respectively (as shown picture 3).
    3.2 For ESC with the programming cable which has no output voltage: in this case, a piece of Y harness is needed to connect the  OTA Programmer tri-black and ESC.  
         To be specific, connect the ESC programming cable and OTA Programmer tri-black cable to connector A and connector B of the Y harness respectively. And an          
         UBEC is needed to power the OTA Programmer, connect the remaining end (/connector C) to the battery (as shown picture 3).

4. For ESC with a separate port for programming

    Plug the OTA Programmer directly into the programming port on ESC(as shown picture 2).

Note: An extra battery(5-12.6V) can replace the UBEC mentioned above.

A

B

C

Connect to the
programming cable

Connect an UBEC only
in the following
circumstances(1.2 & 3.2)

Picture1 

Picture 2 

Picture 3

UBEC

How to make change to ESC & OTA Programmer via the Hobbywing HW Link App

2

Users can program  or upgrade  their ESCs via the  App. (For detailed  information,  please refer to the  user manual  of HOBBYWING HW Link App).
Connect a battery to the ESC and turn it on, Start the  Hobbywing App “HW Link” on your smart device, It will ask if you want to connect 
“Bluetooth” or “W iFi” the first time when you open the app; at this point, please select “Bluetooth”. You need to change the connection to 
“Bluetooth” after using the “W iFi” connection, you can click “Settings” (on the home page) and then “Select the connecting mode” to change the 
connection. then  the  following interface  will show up.

1. Connect OTA Programmer

    A list of Bluetooth devices will pop out when you click the Connect icon on the upper right corner, then select Bluetooth      
    named  “HW-BLE*****”, enter the initial passwor “888888” and then click “OK”.

2. OTA Programmer Connection Status

    The Connect  icon (at the  top  right cor ner on the  user interface  of the  App) will tur n Blue if the  the  smart device is    
    successfully connected  to the  to the ESC. Otherwise,  it will stay Grey (as shown  right).

3. How to change the factory-default Bluetooth name & password

    • Click the “Settings” icon and get into the “Setting  page”.
    • Click “Setting of the Bluetooth Module” and get into the “Bluetooth Setting” page, 
       input the new Bluetooth name(HW can’t be deleted), new password and then click “OK”.

20200828

Disconnected

Connected

USER MANUAL

FCC Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 

20cm between the radiator & your body.

FCC Warning

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.

NOTE1 : 

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.

NOTE2 

: Any changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

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