Quick Start Guide

Add your License Code

1. Log in.

2. Go to the Settings screen (⚙ icon).

3. Scroll down to + Add license.

✓ LICENSE CODE window opens.

4. Type in license code. Press Add.

Capital letters are not necessary.

✓ The license appears under ACTIVITIES/FEATURES.

Pair your Sensors

1. Switch the sensors and the hub on.

Put them in the foam and turn them upside down for 4 seconds, until they start blinking.

2. Go to the Sensors screen (Sensor icon).

3. On the “4DMotion” Wants to Join Wi-Fi Network “Nucleus …” window, tap on Join.

4. Tap the + icon.

5. Tap the START CONNECTING button.

Tap CANCEL PAIRING to stop the process.

6. On the Sensors Paired screen, tap CONFIRM.

✓ On the Sensors screen, the hub and all sensors are listed.

Start a Capture

1. Tap on the Home icon (⌂).

2. On the Student list, tap on one student’s name.

3. On the MY PROFILE screen, tap on the CAPTURE button.

4. On the Select Configuration screen, select Capture Analysis.

5. Select a configuration from the list.

6. Connect to the sensors and tap Next.

   1. Tip: If you aren’t connected to the hub's network, on the “4DMotion” Wants to Join Wi-Fi Network “Nucleus …” window, tap on Join.

7. Optional step: The app may guide you through Sensor Calibration if you haven’t performed them within 24 hours yet. Follow the on-screen instructions. 

8. On the SENSOR SETUP screen, tap on the CONNECT button. 

9. On the SUCCESSFULLY CONNECTED screen, tap on the NEXT button.

10. On the SENSOR SETUP screen, place the delegated sensor on the selected body part, and tap on the NEXT button. 

    1. Note: The selected sensor blinks in green. Place all 8 sensors on the player’s body. 

11. On the DEVICE PLACEMENT screen, tap the NEXT button.

User Pose Calibration

Run this calibration where you will be taking captures.

1. On the STAND STILL IN ATTENTION POSITION screen, read the instructions and tap NEXT.

Note: Tap on the COUNTDOWN button to select the countdown time from the list.

2. On the STAND STILL IN POSITION screen, stand in attention pose until after the second beep.

3. On the SUCCESSFUL SENSOR SETUP screen, tap on NEXT.

Select Capture Details

1. On the Start Capture screen, select the details of the capture.

2. Tap Capture to start the recording.

✓On the Capture screen you’ll see an avatar following the player’s movement. 

View Capture Results

1. On the CAPTURE RESULT screen, select the details of the capture, or add notes.

2. Tap on the SEE VISUALIZATION window to view the recording.

✓This redirects you to the Capture screen where you can see the avatar, the play button, and a collapsible menu on the left.

Start Another Capture

1. On the Capture screen, tap RECORD.

2. On the Start Capture screen, select the details of the capture.

✓Tap CHANGE CONFIG to select a different configuration.

3. Tap Capture to start the recording.

Please find more information, including tips and recommendations, in the User Manual below.

User Manual

Hardware

Charging the system

1. Plug the mini USB charger into the sensors and the hub.

2. Use a wall adapter with min. 1.5A output.

3. Estimated charging time for sensors: 1h.

4. Estimated charging time for hub: 2.5h.

Tip: If your charger produces less than 1.5A, the sensors/hub may not charge correctly.

Turn On the Sensors and the Hub

Option 1

Sensors

1. Put the sensors in the foam.

Note: The LED lights should be up, facing the same direction.

2. Turn the foam upside down for 4 seconds.

3. Turn them right side up.

✓The sensors are blinking yellow.

Hub

1. Turn the hub upside down for 4 seconds.

2. Turn it right side up.

✓The hub is blinking yellow.

Option 2

1. Put the sensors and the hub on the charger for 2 seconds.

✓The sensors and the hub are blinking yellow.

Turn Off the Sensors and the Hub

When not in use, it is best to either shut off the sensors or plug them into the charger. The system switches off after 15 minutes of inactivity.

1. On the Sensors screen, tap the … menu.

2. Select Shut down from the list.

The hub

The hub has its own Wi-Fi network called “Nucleus XXXX”. Find the exact name of the network on the bottom of the hub. 

Connect to the Hub’s Wi-Fi Network

1. On the Sensors screen, tap the Bluetooth icon. 

2. On the “4DMotion” Wants to Join Wi-Fi Network “Nucleus …” window, tap on Join.

✓ On the Sensors screen, the Sensor list appears with 4 or 8 connected sensors.

Tip: You can start the capture flow without connected and calibrated sensors. The app will guide you through connecting to the hub’s network and calibrating the sensors (if necessary).

Tips and Recommendations:

Sensor Visibility

All sensors should be in the line of sight of the hub.

The hub should be placed on the side of the player to ensure sensor visibility. Use the clip-on mount to attach the hub to the player’s belt or trouser.

Reset Hub

Plug in and unplug the hub in the following cases:

• The hub’s LED starts blinking red-blue-green quickly.

• The hub doesn’t connect to your device.

Note: Wait a few seconds before connecting to the hub’s network again.

Keep Hub in Wi-Fi range

Keep the hub in the Wi-Fi range of your device. This is typically within 30 feet, depending on the environment.

Important!

When you’re connected to the hub’s network, you aren’t connected to the internet. Switch to your Wi-Fi before you perform the following actions:

• Add licenses.

• Add new students.

• Watch video tutorials.

• Log out. 

• Sync your captures to our server. 

• Send diagnostic information. 

LED Coloring on the Sensors

Each sensor has an LED light in the bottom right corner. The color of this LED indicates the status of the sensor:

• Red blinking: low battery, < 10% 

• Pulsing green light: charging 

• Green blinking: fully charged 

• Yellow blinking: active sensor

• Yellow blinking twice per second: sensor connected to hub

Identify the Sensors

On the Sensors screen, tap the Bluetooth icon to identify the sensors.

✓The sensors light up with identifying colors/patterns:

• 3 solid colors: red, yellow, green

• 3 blinking colors: red, yellow, green

• 2 changing colors: red-green, red-yellow

Sensor Calibration

The sensors need to be calibrated before use. 

You can calibrate them before starting a capture flow. If you have not calibrated them for over 24 hours and start a capture flow, the app will force the calibration. 

If you reset the sensors, the app will force the second calibration (Static).

Before calibrating, place the sensors in the foam, with the LED lights up and facing the same direction.

Tip: If you calibrate fewer than 8 sensors, you can leave gaps in the foam.

Go to the Sensor list screen to start the calibration.

1. Tap on the … menu.

2. In the menu list, tap on Sensor Calibration.

Sensor Calibration consists of 2 parts. All instructions are displayed on-screen.

First Calibration

3. On the ROTATION CALIBRATION screen, tap on FIND SENSORS.

4. On the FOUND 4/8 sensors screen, tap NEXT.

✓ When the countdown finishes, you are redirected to the calibration screen.

5. Rotate the foam 360° at the horizontal axis.

6. Turn the foam 90° clockwise. Pause for a second.

7. Rotate the foam slowly 360° at the horizontal axis.

8. On the SUCCESSFULLY CALIBRATED screen, tap NEXT.

Tips:

• Each 360° rotation should last 2–3 seconds.

• If you can’t complete calibration after a few rotations, move to an area away from any metal or machines and restart from the Sensors screen.

Second Calibration

1. On the STATIC CALIBRATION screen, tap FIND SENSORS.

2. On the FOUND 4/8 sensors screen, tap on the NEXT button.

   1. Tap STOP to terminate calibration.

3. On the SUCCESSFULLY CALIBRATED screen, tap the DONE button.

Tips and Recommendations for Calibrating your Sensors

First calibration

Make sure that the sensors are at least 4 feet away from (e.g. steel chairs, tables, other furniture) or magnetic (e.g. speakers) objects.

Charging

If the sensors are charged between measurements, the second calibration should be redone after unplugging them from the charger.

Restarting sensors

The calibration values are saved on the sensors, restarting them does not necessitate recalibration.

Acceleration Calibration

Repeat this calibration in the following cases:

• The avatar’s movement is incorrect even after sensor calibrations.

• You can’t complete Static or Rotation Calibrations.

⚠ If the sensors are used to measure high impact movement, e.g. hitting or pitching, run an Acceleration Calibration at the start of each day.

Prepare the Sensors

1. Put the sensors in the foam with LED sides up, and facing the same direction. 

2. The sensors should be sticking out of the foam evenly.

3. Start with sensors in the foam on a flat, steady surface.

Run the Acceleration Calibration

1. On the Sensors screen, tap the … menu.

2. On the ACCELEROMETER CALIBRATION screen, tap NEXT.

3. On the ACCELEROMETER CALIBRATION screen, tap FIND SENSORS.

4. On the FOUND 4/8 SENSORS screen, tap NEXT.

5. On the CALIBRATION screen, follow the on-screen instructions, and tap NEXT.

6. Repeat 5 times.

7. On the SUCCESSFULLY CALIBRATED screen, tap DONE.

Tip: If you start a capture 24 hours after the last Static Calibration or right after sensor reset, the app will guide you through the calibration without having to stop the capture flow.

1. On the Sensors screen, tap on the … menu.

2. On the menu list, tap on Static Calibration.

3. On the STATIC CALIBRATION screen, tap FIND SENSORS.

4. On the FOUND 4/8 sensors screen, tap on the NEXT button.

   1. Tap STOP to terminate calibration.

5. On the SUCCESSFULLY CALIBRATED screen, tap the DONE button.

   1. Tip: If you calibrate fewer than 8 sensors, you can leave gaps.

Tips and Recommendations for Calibrating your Sensors

First calibration

Make sure that the sensors are at least 4 feet away from (e.g. steel chairs, tables, other furniture) or magnetic (e.g. speakers) objects.

Charging

If the sensors are charged between measurements, the Static Calibration should be redone after unplugging them from the charger.

Restarting sensors

The calibration values are saved on the sensors, restarting them does not necessitate recalibration.

Sensor Saturation

When you perform movement with sudden deceleration, and the sensors reach their measurement thresholds, they can saturate. As a result, the movement of the avatar becomes unrealistic, and the data becomes incorrect. 

When this happens, you receive a warning from the app. If you tap on the warning popup (orange circle with exclamation mark inside), you’ll see 2 types of instructions.

 Please follow these recommendations to allow the sensor(s) to resolve the visualization error. Once the required movement is performed and the sensor resets, the popup should disappear with a beep.

1. First warning:

The following sensors need a quick recalibration: 

STAND STILL IN ATTENTION POSE FOR 3 SECONDS

Once the sensor recalibrates, you can resume capturing.

2. Second warning:

The following sensors need a quick recalibration:

REPEAT USER POSE CALIBRATION

Go back to the original user pose location and assume the user pose for 3 seconds. Once the sensor could re-calibrate, all sensors can be used again.

If the orange popup doesn't disappear after 5 seconds in user pose, please run a Static Calibration.

Please follow these recommendations to allow the sensor(s) to resolve the visualization error. Once the required movement is performed and the sensor resets, the popup should disappear with a beep.

Static Calibration

If your sensors have saturated and/or the avatar looks incorrect after a User Pose calibration, please run a Static Calibration:

1. On the Sensors screen, tap on the … menu.

2. On the menu list, tap on Static Calibration.

3. On the STATIC CALIBRATION screen, tap FIND SENSORS.

4. On the FOUND 8 sensors screen, tap on the NEXT button.

   1. Tap STOP to terminate calibration.

5. On the SUCCESSFULLY CALIBRATED screen, tap the DONE button.

   1. Tip: If you calibrate fewer than 8 sensors, you can leave gaps.

Tips and Recommendations for successful captures

⚠

• Make sure that there aren’t any metal objects in close vicinity to the sensors (e.g. watches, belt buckles, chairs, electronic devices).

• After Static Calibration, handle the sensors with care. Don’t shake or drop them. If you do, please recalibrate!

• Try to minimize the time between static calibration and user pose calibration.

• Do not put sensors in the strap and then put them down on the table.

• Avoid any excessive movement before the first user pose calibration.

• Avoid standing in direct air condition breeze or cross-draft. Temperature changes impact the system negatively (the higher the change, the bigger the impact).

• Run the user pose calibration in the same place where you will be taking captures!

• If you notice a drift in the visualization, go back to where you did the user pose calibration, and assume the attention pose for a few seconds.

Firmware update

We’ll notify you when a firmware update is necessary. The app version you download contains the firmware, which means that 1) to run a firmware update, you need the newest app version. You can download it from the App Store. 2) You don’t need internet connection to run a firmware update.

• Turn on the sensors and the hub.

• On the “4DMotion” Wants to Join Wi-Fi Network “Nucleus …” window, tap on Join.

✓ On the Sensors screen, the Sensor list appears with 4 or 8 connected sensors.

• On the Sensors screen, tap on the ... menu, and select FIRMWARE UPDATE.

• On the FIRMWARE UPDATE screen, tap START.

• On the FIRMWARE UPDATE SUCCESSFUL screen, tap FINISH.

• Reset the hub after the firmware update: plug it into the charger, then unplug it.

Tip: If the firmware update is interrupted by an error, tap RESTART until all the sensors and the hub are updated successfully. If some sensors were updated during previous tries, only the remaining ones will be processed. 

Software

Create Student Profiles

Motion captures are always associated with an instructor or a student profile. The first profile on the list is the instructor’s. Your students are organized in alphabetical order. 

1. Connect your device to the internet.

2. On the Home page (⌂), tap ADD STUDENT.

3. On the ADD STUDENT screen, type your student’s details.

4. Tap SAVE.

Make a Capture

Run a Sensor calibration at the beginning of the day to adjust the system to the local environment. 

1. On the Home screen, select a student profile.

2. On the MY PROFILE screen, tap CAPTURE.

3. On the Select Configuration screen, select a configuration from the list.

Tip: You can “star” favorites to move them to the top of the list.

Sensor Placement

1. On the SENSOR SETUP screen, tap on the CONNECT button. 

2. On the SUCCESSFULLY CONNECTED screen, tap on the NEXT button.

3. On the SENSOR SETUP screen, place the delegated sensor on the selected body part, and tap on the NEXT button. 

Note: The selected sensor blinks in green. Place all 8 sensors on the player's body. 

4. On the DEVICE PLACEMENT screen, tap the NEXT button.

When placing the sensors on the player’s body:

• Place the chest and hip sensors with the LED side facing forward. When placed on the back, the LED should face the player’s back.

• The arm sensors should be perpendicular to the chest and hip sensors when the player is in attention position. (Arms stretched and flush against the body. Wrist flat, 4 fingers pointing down.)

• You can put on the sensors two ways:

  • Put the straps on the body and then carefully put a sensor in the designated  strap as the application requires.

  • Put a sensor in the designated strap and then put the strap on your body. Do not put sensors in the strap and then put them down on the table.

User Pose Calibration

1. On the STAND STILL IN ATTENTION POSITION screen, read the instructions and tap NEXT.

Note: Tap on the COUNTDOWN button to select the countdown time from the list.

2. On the STAND STILL IN POSITION screen, stand in attention pose until after the second beep.

3. On the SUCCESSFUL SENSOR SETUP screen, tap on NEXT.

If the sensors shifted on the player’s body, correct their position and repeat the user pose calibration. 

Device Placement

• The hub should be placed on the student’s side using the belt clip. This ensures that all the sensors used are in the line of sight of the hub.

• The hub should be within the Wi-Fi range of the iPad. This is typically within 30 feet, depending on the environment.

Select Capture Details

1. On the Start Capture screen, select the details of the capture.

2. Tap Capture to start the recording.

✓On The Capture screen you’ll see an avatar following the player’s movement. 

View Capture Results

1. On the CAPTURE RESULT screen, select the details of the capture, or add notes.

2. Tap on the SEE VISUALIZATION window to view the recording.

✓This redirects you to the Capture screen where you can see the avatar, the play button, and a collapsible menu on the left.

Troubleshooting

Sensor error during firmware update

• Please press “Restart” and try again. 

• After several failed attempts, remove and re-pair the sensors:

  1. On the Sensors screen, tap on each sensor and tap REMOVE.

  2. Tap on the hub and tap REMOVE.

  3. Tap the + icon.

  4. Tap the START CONNECTING button.

  5. On the Sensors Paired screen, tap CONFIRM.

  6. On the … menu, select Firmware Update and start over.

First calibration fails

• Don’t rotate too fast. Each rotation should take approx. 3 seconds.

• Move away from your current location (e.g. a meter), as there could be too much magnetic disturbance where you are standing right now. The software has certain thresholds within which it tolerates disturbances.

• If this calibration keeps failing even after several attempts in several locations, please run an accelerometer calibration, and try again.

Hub timeout or other hub connection error

• Reset the hub by plugging it into the charger and unplugging it.

• Close and restart the 4D Motion app.

• Reconnect to the hub’s network, Nucleus XXXX.

• Press the Bluetooth icon. Make sure that the sensors show up on the page and each one is marked with a color. 

Bluetooth does not connect to all paired sensors

• Make sure you are connected to the Hub’s network (Nucleus XXXX), and that the sensors are awake (blinking yellow). If not, turn the sensors upside down for 4 seconds to turn them on.

• Reset the hub by plugging it into the charger for a few seconds, then unplug it.

• Restart the application, go to the sensors page, connect to Nucleus XXXX, and tap the Bluetooth button again.

‘Hub response timeout’ 

• During sensor calibration: check if your device is connected to the hub’s network (in iOS Settings). If the hub isn’t available on the Wi-Fi list, charge it for a minimum of 15 seconds and refresh the network list. It may take a few seconds for the hub’s network to show up on the list. Go back to the app, and connect to Nucleus XXXX.

• During Static Calibration: check if your device is connected to the hub’s network (in iOS settings). If the hub isn’t available on the list, charge it for a minimum of 15 seconds and refresh the network list. It may take a few seconds for the hub’s network to show up on the list. Go back to the app, and connect to Nucleus XXXX.

• When connecting to sensors: First start the flow again using the ‘Connect’ button. If it doesn’t help, check in the iOS Settings menu if the device is connected to the hub’s network. If the hub isn’t available on the list, charge the hub for a minimum of 15 seconds, unplug it, and refresh the network list. It may take a few seconds for the hub’s network to show up on the list. Go back to the app, and connect to Nucleus XXXX.

• During sensor placement: Start the flow again using the Next button. If this doesn’t help, please reset the hub: charge it for 5 seconds, then try again.

User Pose Calibration errors

• The hub is too far away from the user or your device. ‘Cannot connect to some sensors. Please make sure that your mobile device has direct or at least partial line of sight with each sensor…’

When performing a capture, the hub should be on the student’s body using the belt clip, or within a few feet if not worn using the belt clip. First, try to start the flow again using the Next button. If it doesn’t help, change your position so that the sensors and the hub are in the line of sight of your device. 

• Hub response timeout: Start the flow again using the Next button. If this doesn’t help, please reset the hub: charge it for 5 seconds, then try again.

• Sensor error: First try to start the flow again using the Next button. If it doesn’t help, change your position in front of your device so that the sensors are in the line of sight of your device. 

Sensors aren’t blinking

If sensors are active but not connected to the hub for more than 15 minutes, they turn off. Turn the sensor upside down to activate them again. If they don’t start blinking, put them on the charger for at least 10 minutes.

Sensor’s LED is stuck in a solid color (e.g. red), or sensor doesn’t light up after pressing the Bluetooth icon

Reset the sensor by charging it for 5 seconds. Unplug it and press the Bluetooth icon.

Hub isn’t blinking

The hub is switched off (automatically or due to low battery). Your device may not be connected to the hub’s network. 

• Turn the hub upside down for 4 seconds to wake it up. If that doesn’t help, charge it for a few minutes.

• Connect to the Nucleus XXXXX network.

• Press the Bluetooth icon on the Sensor list screen to check if the hub can connect to your device, and to see its battery level.

‘Error - No sensors found. Turn on an unpaired sensor and retry.’

The message means there aren’t any available, unpaired sensors nearby. This can happen if A)   available sensors have already been paired, or B) the unpaired sensors aren’t available for the hub and the device. 

If the sensor doesn’t light up, turn it upside down to activate it. If it doesn’t help, put the sensor on the charger for at least 10 minutes, unplug it and try again.

‘Not all of your sensors are calibrated. Please calibrate before you move on to the next screen.’

• Turn the sensors upside down to wake them up.

• If that doesn’t help, plug in and unplug all the sensors and the hub.

• Make sure your device is connected to the hub’s network.

• Start the capture again.

Hub blinks red-green-blue

Plug in and unplug the hub to reset it.

Note: Wait a few seconds before connecting to the hub’s network again.

The visualization is incorrect. E.g. body parts are moving in the wrong direction, or the orientation of the avatar is not right.

• If the capture avatar is not moving correctly, make sure the sensors are on the right body part. If you’re unsure about this, you can press “Reconnect sensors” on the Start Capture screen. This starts the sensor placement flow.

• You can adjust the sensors if needed, and run a User Pose Calibration. If you need to adjust them because the straps shifted, run a User Pose Calibration again. 

• If these don’t resolve the issue, you may be in a magnetic environment that confuses the magnetometer in the sensors. Strong magnetic interference can cause the sensors to ‘drift.’ This can result in incorrect visualization, e.g. the body parts are not aligned correctly. You can perform Static Calibration to stop the drift. If you are in an environment with high magnetic interference, you may have to repeat Static Calibrations as time goes by and the sensors drift. 

• If you’re having visualization errors even after several calibrations, please run an Accelerometer calibration.

Reporting errors and bugs

In the app: go to Settings '⚙', and tap 'send diagnostic info'. This works only when you’re connected to the Internet.

Via email: support@4dmotionsports.com. When reporting errors via email, please always write down what you did step by step, and attach a screenshot or screen recording of the error.