HM | DCC

HM | DCC

Revolutionary Digital Control

4 ratings
32 reviews
Free
With Ads

Details

  • Released
  • Updated
  • March 20, 2023
  • March 20, 2025
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About

Control your model railway system wirelessly with this app. Build your locomotive library, customize their settings, and design your dream layout with untethered control over points, signals, and turntables. Enjoy free sound profiles and upgrade existing systems.

Wireless model railway control
Locomotive customization
On-the-fly setting adjustments
Layout design tool
Controllable points, signals, turntables
Free locomotive sound profiles
Bluetooth® device linking
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What's New in HM | DCC

1.6.0

March 20, 2025

Consisting – Control up to 8 locomotives together seamlessly using the HM | DCC app. Vertical Control – The control screen now supports a vertical layout, with options to customise the scale and position of the vertical control bar in Settings. Legacy horizontal control remains available. Global Function Control – Full individual and global function control for all consisted locomotives, enabling smooth multi-engine operation. Bug Fixes – Various improvements and performance enhancements for a smoother experience. More Coming Soon – Stay tuned for exciting new features in upcoming updates!

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User reviews

Excellent well supported system

This is an easy to use system and the app is first class easy to set up and operate - everything occasionally has glitches these are usually solved with a little bit of thought - the negative reviews, as usual,seem to be mainly from people who don’t seem to be able to have that ability or there are plenty of support resources available if it is too much to work out by self - including downloading and READING THE MANUAL from the Hornby site which is 160 odd pages its well indexed so is an invaluable help
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Always giving problems

It’s always losing my loco’s that I have installed in it and then I have to reinstall them all again.
Also it’s always having problems with most decoders initially when I install them for the first time, with a sound profile.

Sometimes a bit finicky, but overall useful.

Had some difficulty getting it to work the first time, but with updates and more experience, I’ve found it overall useful and good for what it does. Any screwups are moderately easy to fix by just resetting the effected decoder, and picking sound for locos is far easier than other systems.
There are parts for improvement when it comes to function programming and arrangement, but for HM7000s relative low price I’m more than happy.
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Over complicated

Very difficult app to figure out constant error messages, frequently can’t see the device drops connection for no reason and is probably not for new starters to the hobby. I recommend stick with DC basic until it bores you and you want the huge challenges DCC presents.

Will it, Won’t it

In the beginning it worked fine, then started losing loco’s, finding them again and then ultimately asking for codes and re setting required. Gave up, gone for another control system. Product support, questionable.

Developer apps

FAQ

What does the HM | DCC app do?

The HM | DCC app is the official control system for the HM7000 range of model railway products. It allows users to wirelessly control their locomotives, customize their settings, and design their dream railway layouts. The app provides untethered control over points, signals, and turntables, and offers free locomotive sound profiles.

What are the key features of the HM | DCC app?

Key features include wireless control of your model railway system, the ability to build and customize a library of locomotives with custom images and running styles, on-the-fly setting adjustments, a track builder for designing layouts, and control over points, signals, and turntables. It also offers free downloadable locomotive sound profiles.

Is the HM | DCC app free to use?

The HM | DCC app itself is free to download and use. However, it is designed to work with the HM7000 range of products, which are purchased separately. The app may offer in-app purchases for additional features or content, such as more sound profiles, though the description highlights free sound profiles.

What devices are compatible with HM | DCC?

The app is compatible with the HM7000 range of products and uses Bluetooth® for device linking. While devices older than 5 years may work, they cannot be recommended for control. Internet access is required for certain functions like device reset, profile downloads, and app updates. It functions with OO, TT, and N scale gauges.

How can I upgrade my existing model railway system with HM | DCC?

You can upgrade previous DCC products without ripping out installed controllers and components. The app allows you to upgrade "DCC ready" locomotives to HM | DCC app control with HM7000 decoders. You can also control locomotives fitted with non-Bluetooth® and HM7000 Bluetooth® decoders in parallel. More information on upgrading can be found on the Hornby.com website.