Loco Remote Guide and Shop

The Loco Remote system is made up of a very small electronic module that fits in the loco, and a controller interface that the module generates on a Wi-Fi device such as an Apple or Android smartphone.

There are two families of modules. The Mini B is for 3V to 6V motors, and the Maxi and Mega 2 are for 6V to 12V motors.






Click on the links to view or download the installation and setup guide for each type of module, advice on battery selection, and the Wi-Fi connection and controller operation guide common to all modules.
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Buying a Loco Remote

Modules can be purchased securely using PayPal

Prices shown below include free 1st class postage to the UK only.

We can ship Loco Remotes to many countries worldwide and there are already owners in the USA, Australia, New Zealand, Japan, India, Germany, Austria, Sweden the Netherlands and France. Royal Mail International Airmail postage for a Loco Remote is just £4 to the European Union and £5 to the USA, Japan, Australia, New Zealand and rest of the world. Royal Mail tracked and insured services are also available at extra cost.

If you are purchasing up to 3 Loco Remotes from outside the UK and would like standard non tracked airmail please add this to your PayPal shopping cart.

£4 airmail postage charge to the European Union for up to 3 Loco Remotes
£5 airmail postage charge to the rest of the world for up to 3 Loco Remotes
If you would like to purchase 4 or more Loco Remotes or would like Royal Mail tracked and insured postage, please contact us by email first so we can confirm the price and send you a PayPal invoice for the total.

The Mini B is suitable for 3V to 6V motors

The Mini B can be powered by any type of battery with a suitable voltage including NiMH, NiCd, Alkaline, Li-ion and Lipo. The absolute maximum battery voltage for the Mini B is 6V. The Mini B is able to supply up to 1.6A current to the motor at the full battery voltage.

The Mini B is supplied with a cable for a 3.7V (1s) Lipo battery of this type. Search eBay for "Syma X5C battery". 4 x 600mAh batteries and a mini charger are available from UK sellers for under £12 and ideal for many small 3V locos. 1200mAh batteries give twice the run time.

Loco Remote Mini B


26mm wide, 43mm long, 10mm high

3V to 6V battery
1.6A max current

£35 inc UK p&p

Loco Remote Mini B
with lights

26mm wide, 43mm long, 18mm high

3V to 6V battery
1.6A max current

£40 inc UK p&p

Loco Remote Mini B
with external sound triggers & lights

26mm wide, 43mm long, 18mm high

3V to 6V battery
1.6A max current

£45 inc UK p&p

Loco Remote Mini B
with internal sound card & lights

26mm wide, 43mm long, 25mm high

3V to 6V battery
1.6A max current

£50 inc UK p&p

Remember to specify sound samples required - see below

The Maxi is suitable for 6V to 12V motors

The Maxi can be powered by any type of battery with a suitable voltage including NiMH, NiCd, Alkaline, Lead Acid, Li-ion and Lipo. The absolute maximum battery voltage is 15V. Note that a fully charged nominal 1.2V NiMH battery has an initial output voltage of up to 1.45V so do not use more than 10 AA NiMH batteries or equivalent in series. Nominal 7.4V (2s) or 11.1V (3s) Lipos are suitable. Do not use 14.8V (4s) Lipos as they have a fully charged voltage of 16.8V. A 12V Lead Acid battery is also fine and has an initial output voltage of up to a 14.7V. The Maxi is able to supply up to 2A current to the motor at the full battery voltage.

Loco Remote Maxi


26mm wide, 43mm long, 13mm high

6V to 12V battery
2A max current

£39 inc UK p&p

Loco Remote Maxi
with lights

26mm wide, 43mm long, 21mm high

6V to 12V battery
2A max current

£44 inc UK p&p

Loco Remote Maxi
with external sound triggers & lights

26mm wide, 43mm long, 21mm high

6V to 12V battery
2A max current

£49 inc UK p&p

Loco Remote Maxi
with internal sound card & lights

26mm wide, 43mm long, 30mm high

6V to 12V battery
2A max current

£54 inc UK p&p

Remember to specify sound samples required - see below

The Mega 2 is a 2 motor driver version of the Maxi and is suitable for 6V to 12V motors

The Mega 2 uses the same batteries as the Maxi. It has 2 outputs each capable of supplying up to 2A current. The outputs of the Mega 2 must be connected to 2 separate motors. They must not be put in parallel in an attempt to provide more current to a single motor as this will damage the module. Versions of the Mega 2 with all the same options as the Maxi are available for £10 more than the equivalent Maxi. Contact us by email for a quote.

LED light and sound options

The Loco Remote Mini B, Maxi and Mega 2 are all available in 4 different versions

The Standard module drives either a 3V to 6V or 6V to 12V motor.

Lights adds 2 directionally switched outputs each capable of providing 150mA at 3.3V for LEDs at the front and rear of the loco. The module has user changeable built in current limiting resistors to work directly with clear white or red LEDs. These can be bypassed so the user can use external resistors to customise the brightness further. The high output current can power up to 8 LEDs simultaneously, making it easy to have 2 or 3 white LEDs on at the front and 2 or 3 red LEDs on at the rear at the same time. The lights can be turned on and off from the phone controller.

External sound triggers adds support for common external sound cards from manufacturers including Mtroniks and MyLocoSound. The Loco Remote provides a signal to the motor input of the sound card for variable engine speed noise and 4 buttons on the phone controller to trigger horn and whistle sounds as well as turning the engine on and off if the sound card supports this. The same battery can be used for the Loco Remote Maxi and sound card. As most sound cards require over 6V, a separate higher voltage battery will be needed for the sound card when operated with the Mini B.

The Internal sound card provides 4 horn and/or whistle sounds recorded from full size locos that can be triggered from the phone controller. Just connect a small 8 ohm speaker directly to the module. It does not provide continuous engine noise. If you want engine noise choose the external sound option with a separate sound card. When you order a Loco Remote with internal sound card & lights please contact us by email to specify which loco samples you want loaded on your card. Click on the links below to hear the currently available sound samples.

Steam loco sound samples Diesel loco sound samples If you would like a customised set of 4 samples, either from a combination of the locos listed above or from your own video or audio recordings then contact us by email. There is a small £5 set up fee for this service added to the relevant Loco Remote module price.
Battery, motor, lights and sound card cables are included as appropriate. Add 9mm to the length of the modules to accommodate connectors. The minimum length space on the loco is therefore 52mm.
Rechargeable batteries have a very low internal resistance and can easily pass tens of amps when shorted. Use a 2A resettable polyfuse or a 2.5A slow blow 20mm fuse in a suitable fuse holder in series with the battery to protect the Loco Remote module and battery. These can be found on eBay.
If you are trying to squeeze a Loco Remote module into a very small space, the Mini B and Maxi are both available with wires soldered directly to the board replacing the connectors. This is a special option. If you are interested please enquire before ordering. This is not available for the Mega 2 or modules with lights or sound.