The JMRI dongle is a small USB receiver that plugs into the computer running your JMRI layout. It listens for the Bluetooth (BLE) broadcasts the Speed Stick sends every time it measures a train, and hands those readings straight into JMRI — no cables to the stick, no manual data entry.

Key feature: wireless, real-time capture of scale-speed measurements directly into JMRI. The Speed Stick measures a passing locomotive, broadcasts the result over BLE, and the dongle delivers it to the JMRI Receiver software automatically.

Application: speed matching and calibration. With readings flowing into JMRI, you can profile and speed-match locomotives, verify scale-speed against throttle/DCC settings, and log consistent measurements across an operating session — all hands-free, while the stick stays trackside.

Two ways to connect. The dongle hears your Speed Stick over Bluetooth and then passes that data to JMRI one of two ways. Over USB, you simply plug the dongle into your computer with a USB-C cable — it appears as a serial connection, and the JMRI software reads the readings directly off that port. Over Wi-Fi, the same dongle joins your layout’s wireless network (a quick phone-based setup picks the network and enters its password) and streams the readings to JMRI across the network, so it can sit anywhere on any USB power source with no cable to your computer. The data itself is identical either way — only the path differs, so you can pick whichever suits your layout.

The Panel. The Panel is the live on-screen display that JMRI builds for your Speed Stick. It shows the reading in a large, easy-to-read format — scale speed (or lap time in loop mode), the units, the active mode, the model scale, and the selected stick’s battery level — and refreshes automatically as new measurements arrive. A connection chip shows at a glance whether you’re on USB or Wi-Fi. If you’re running more than one Speed Stick, on-screen arrows let you flip between them, and you can rename each stick, recolor its readout, and resize the window to suit your bench — preferences that are remembered per stick.

Speed Stick JMRI Manual 2.0

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There are two version of the Speed Stick:

Standard  is series 4.   The New standard versions will be shipped the week of June 21st.

Bluetooth is series 5  for Apple iOS and Android.  Here is the link to the Apple APP Store: https://apple.co/4a0WOyb

THEY HAVE IDENTICAL SENSOR CAPABILTIY AND INTERNAL CIRCUITRY FOR SPEED MEASUREING.

The bluetooth version of the Speed Stick transmits the Speed Stick data to our custom iPhone/Android App.  You can receive data from multiple Speed Sticks simultaneously.  The App is FREE.

Both iPhone and Android versions will be available in June 2026 .  The iPhone version is available now.  functions, same case, etc.  History data is recorded on the APP and can be saved as a file.

With enhanced circuitry and software the series 4 are the most advanced Speed Sticks yet.  Faster, more precise and more accurate with enhance battery saving features.  The feet have also been redesign to be push and twist to lock them on.

An updated video is in the works.  If you want to download the app and play with it, search “SPEEDSTK” in the APP Store. (available 6.4.26)   We’ll let you know about the Android version asap.

NO personal data, including your location is available or trasnmitted via the APP.

SHIPPING:   US:  All packages will be shipped USPS GROUND regardless of what shipping method you choose at checkout. (Lithium Battery UN3481)

DO NOT COMBINE OTHER ITEMS IN YOUR SPEED STICK ORDER.  ALL OTHER ITEMS MUST BE PART OF A SEPARATE ORDER.

AUSTRALIA:   You may contact our local dealer in Australia: https://www.martystrainshed.com.au/

The Model Train Technology Speed Stick is a portable and highly accurate speed measuring device for model trains from Z to G gauge.  It is small enough to sit on the side of the track and comes with a built-in 500mAh rechargeable lithium battery.  The Speed Stick can be run on the battery or can be plugged into a USB-C cable to run on any 5V phone charger!  There are no batteries to replace!

The Speed Stick uses our Precision Detector technology which is extremely fast and is precise to 1mm.  We do not use reflective IR sensing.  As a result, the Speed Stick is immune to changes in ambient light conditions. It will work outdoor and in a completely darkened room. Our Auto-Ranging mode is built in.  This allow you to set the sensor range to the edge of the first rail of your track so that it will ignore objects (or trains) that are just beyond the track of the train you want to measure.  The maximum range is 150mm (5.5”) from the from sensor side of the Speed Stick.

Note:  As of May 1, 2026 Version 4 is the current version.  This includes many incremental improvements in the hardware and software.  This is an inline release since the core functions remain unchanged.  Improvement include more precision, faster response time, significant battery life improvement both dormant and active modes, and less clock slipping in LOOP mode.

Comes in 3 Colors. INCLUDES:  Speed Stick, USB to USB-C Charger cable, 5V Charger Cube

AVAIABLE SCALES:

Z scale = 220 ;
N scale = 160 ;
HO scale = 87 ;
S scale = 64 ;
O scale = 48 ;
G scale = 22.5 ; note (fastest measurable speed is 46mph)

EUROPE:
NK scale = 148 ; // N scale UK
TT scale = 120 ; // Table top
OO scale = 76 ; // Most Common in UK close to HO
OE scale = 45 ; // Europe O scale
OK scale = 43.5 ; // UK O scale

Product Documentation

Click here to link to Video.

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This version of the small-scale for N and HO Motorized Gate Crossing system is better than ever!  There are several new features that makes the system easier to install and simpler to operate. Here are the primary improvements:

• Non-touch detection of top-dead-center motor system
• Smoother and quieter motor movement
• Simplified controller/motor wiring system
• Upgraded 3D parts to prototypical scale.

VIDEOS:
1. Introduction video
2. Installation Instructions

YOU MUST SEND BACK THE FOLLOWING ITEMS TO BE UPGRADED:

1.  GATE CONTROLLER
2. GATE MOTOR
3. CROSSING GATE FLASHER.

(do not send any other parts)

The FLASHER must be wrapped in bubble wrap sufficiently to prevent damage.  Paper is NOT sufficient to protect the fragile parts.  We are not responsible for damage in shipping.

MOTORIZED GATES UPGRADES ARE MADE TO ORDER – PRODUCTION TIME IS APROX. 4 WEEKS.

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This is for packaging and shipping only.

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There are two version of the Speed Stick:

Standard  is series 4.   The New standard versions will be shipped the week of June 21st.

Bluetooth is series 5  for Apple iOS and Android.  Here is the link to the Apple APP Store: https://apple.co/4a0WOyb

THEY HAVE IDENTICAL SENSOR CAPABILTIY AND INTERNAL CIRCUITRY FOR SPEED MEASUREING.

The bluetooth version of the Speed Stick transmits the Speed Stick data to our custom iPhone/Android App.  You can receive data from multiple Speed Sticks simultaneously.  The App is FREE.

Both iPhone and Android versions will be available in June 2026 .  The iPhone version is available now.  functions, same case, etc.  History data is recorded on the APP and can be saved as a file.

With enhanced circuitry and software the series 4 are the most advanced Speed Sticks yet.  Faster, more precise and more accurate with enhance battery saving features.  The feet have also been redesign to be push and twist to lock them on.

An updated video is in the works.  If you want to download the app and play with it, search “SPEEDSTK” in the APP Store. (available 6.4.26)   We’ll let you know about the Android version asap.

NO personal data, including your location is available or transmitted via the APP.

SHIPPING:   US:  All packages will be shipped USPS GROUND regardless of what shipping method you choose at checkout. (Lithium Battery UN3481)

DO NOT COMBINE OTHER ITEMS IN YOUR SPEED STICK ORDER.  ALL OTHER ITEMS MUST BE PART OF A SEPARATE ORDER.

AUSTRALIA:   You may contact our local dealer in Australia: https://www.martystrainshed.com.au/

The Model Train Technology Speed Stick is a portable and highly accurate speed measuring device for model trains from Z to G gauge.  It is small enough to sit on the side of the track and comes with a built-in 500mAh rechargeable lithium battery.  The Speed Stick can be run on the battery or can be plugged into a USB-C cable to run on any 5V phone charger!  There are no batteries to replace!

The Speed Stick uses our Precision Detector technology which is extremely fast and is precise to 1mm.  We do not use reflective IR sensing.  As a result, the Speed Stick is immune to changes in ambient light conditions. It will work outdoor and in a completely darkened room. Our Auto-Ranging mode is built in.  This allow you to set the sensor range to the edge of the first rail of your track so that it will ignore objects (or trains) that are just beyond the track of the train you want to measure.  The maximum range is 150mm (5.5”) from the from sensor side of the Speed Stick.

Note:  As of May 1, 2026 Version 4 is the current version.  This includes many incremental improvements in the hardware and software.  This is an inline release since the core functions remain unchanged.  Improvement include more precision, faster response time, significant battery life improvement both dormant and active modes, and less clock slipping in LOOP mode.

Comes in 3 Colors. INCLUDES:  Speed Stick, USB to USB-C Charger cable, 5V Charger Cube

AVAIABLE SCALES:

Z scale = 220 ;
N scale = 160 ;
HO scale = 87 ;
S scale = 64 ;
O scale = 48 ;
G scale = 22.5 ; note (fastest measurable speed is 46mph)

EUROPE:
NK scale = 148 ; // N scale UK
TT scale = 120 ; // Table top
OO scale = 76 ; // Most Common in UK close to HO
OE scale = 45 ; // Europe O scale
OK scale = 43.5 ; // UK O scale

Product Documentation

Click here to link to Video.

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