HORNBY HOBBIES HM7040 Ble Legacy Dongle User Guide

HORNBY HOBBIES HM7040 Ble Legacy Dongle

Multi-Dongle Control

• For Elite and Select controllers, it is possible using the HM7090: Club Adapter (R7404) & R8237 to have multiple Legacy Dongles installed for multi-user control. Each user will be able to control a Legacy Dongle with their own phone or tablet via the HM I DCC app and control any DCC locomotives on a given layout. More Legacy Dongles can be added into a
  ‘Christmas Tree’ arrangement with additional adapters, for up to D Legacy Dongle user(s).

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.

• Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. 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.

The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be collocated or operating in conjunction with any other antenna or transmitter, end-users must be provided with transmitter operation conditions for satisfying RF exposure compliance.

• Model: HM7040
• FCC ID: 2ACUF-7040
• IC: 12075A-HM7040
• Radiation Frequency:
  • 2402MHz-2480MHz
  • Powers.10mW
• Manufactured by: HORNBY HOBBIES LTD
  • Westwood Industrial Estate, Margate, Kent, CT9 4JX, United Kingdom
  • + 44(0)1843 233525
  • customerservices.uk@hornby.com
• HORNBY AMERICA Inc Lakewood Industrial Park,
  • 4620 95th St Sw, Bldg. 6, Suite A, Lakewood, WA. 98499
  • + 39 0687501292
  • customerservices@hornby.us

Full HM7040 digital manual(s) available here:

• This instruction sheet or part thereof may not be copied, duplicated, amended or circulated in any form whatsoever without written permission from Hornby Hobbies Ltd. © Hornby Hobbies Ltd.
  • www.hornby.com

Quick Start Guide

Getting to know the HM7040

Initial setup / Configuration

• The HM7040: Legacy Dongle connects to a Hornby Select (R8213) or Hornby Elite Controller (R8214) for proper function and will allow control of DCC decoders via the HM | DCC app. Please ensure that the instructional manual for your Elite or Select controller has been read and is correctly setup prior to the Legacy Dongle install.
• Plug the Power Supply Plug from the power supply provided with your Elite (15V …. 4A) or Select (15V …. 1A) into your controller and into the mains socket. Switch on the mains power.
• Allow your Elite or Select controller to power up and finish the start-up sequence. Your Legacy Dongle should have the Power LED as solid ‘Red’
• Place your DCC decoder fitted locomotive onto the track. Ensure that you remember the Loco Address of your DCC locomotive (CV1).

Connect HM7040 to HM

Download the HM | DCC application.

• A. Scan the QR code [A.] with a compatible Android / iOS phone or tablet.
• B. You will be directed to the HM | DCC app in your app store. You can also search for “HM DCC” in your app store to find the HM | DCC app.
• C. Tap on ‘GET’ or ‘Install’ next to the HM | DCC app icon and follow the on-screen instructions.
• D. Wait for the app to download and install on your phone or tablet. 
• E. Open the app and login to HM | DCC using your Hornby.com account. A Hornby account can be created via the Hornby.com website; scan the QR code [E.] to register.

Connect your HM7040: Legacy Dongle to HM | DCC.

• A. Ensure steps have been followed and your DCC locomotive is powered.
• B. On the compatible phone or tablet you wish to use, ensure that your Bluetooth® is turned on.
• C. Ensure you allow HM | DCC access to Bluetooth® permissions on your device. Ensure ALL other permissions are granted and for Android users, Nearby Device Scanning & Location Services are turned on.
• D. Follow the ‘Device Link’ process on the HM | DCC app. Once complete, the Bluetooth® Connection LED will be solid or strobing ‘Blue’ on the Legacy Dongle. Please ensure that your DCC locomotive is setup on the HM | DCC app with the same address as your fitted decoder (default Loco Address = 3′, CV1 = ‘3″). Your locomotive will now respond to inputs on the ‘Control Screen’.

Hard Reset

To Hard Reset on HM | DCO

• It is advised to first go through the ‘Unlink & Delete Device’ process on the HM | DCC app.
• This is the primary method for a Hard Reset and will prepare your Legacy Dongle for ‘Device Link’ to a new phone or tablet.

Online Guides are provided for this process. Scan here:

To Hard Reset on your HM7040.

• A. Ensure your Legacy Dongle is powered.
• B. Using a thin tool (e.g., a paperclip), press and hold in the Reset Button until both the Power LED and Bluetooth Connection LED begin flashing.
• C. The Power LED will return to solid ‘Red”‘ and Bluetooth Connection LED will be set to off. Your Legacy Dongle will be reset to default settings.

Please note: A Hard Reset of the HM7040: Legacy Dongle will not remove the device from the HM | DCC application. Please first perform the Unlink & Delete Device process; if this is not possible, ensure to ‘Force Delete’ the HM7040 from the HM I DCC. annidation first

Dual-Donale Control (Elites prior to 2018)

• Featured on some previous generation Elite controllers are 2 XPRESSNET ports. Users with this setup can plug 2 Legacy Dongles into the Elite controller and gain function for up to 2 users on a layout. Each user will be able to control a Legacy Dongle with their own phone or tablet via the HM | DCC app, allowing for both users to control any DCC fitted locomotives on the layout

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