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Shimmer NEUROLYNQ User Manual

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Q U
G
3.1
EURO
YN
SER
UIDE
V
Rev. a
1
Copyright © Shimmer, 2019

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Summary of Contents for Shimmer NEUROLYNQ

  • Page 1 EURO UIDE Rev. a Copyright © Shimmer, 2019...

  • Page 2: Table Of Contents

    Setup: What’s new in this Release Introduction Inventory NeuroLynQ Setup Install Hardware Install Software Software Explained: Licensing Conduct a NeuroLynQ@Home Trial Home Screen Manage Devices – part 1 Live Data Manage Devices – part 2 Manage Data Analytics Appendices •...
  • Page 3 ’ EW IN THIS ELEASE NeuroLynQ v3.1 brings a number of new features to perform the analysis of recorded NeuroLynQ@Home trial. Updates: • Option to Load Event Marker File • New Manage Data tab buttons – Refresh, Download • NeuroLynQ@Home Trial Settings panel...

  • Page 4: Introduction

    NTRODUCTION • The Shimmer NeuroLynQ solution integrates both hardware and software to provide unprecedented insight into the emotional responses and implicit reactions of a large group. • The solution can be applied to a variety of applications such as: •...

  • Page 5: Neurolynq Setup

    NeuroLynQ Sensor Unit Note: It is not mandatory to connect the ECG electrodes to the subjects if you do not wish to capture ECG and HR data. NeuroLynQ hardware and software will function perfectly fine with just the GSR electrodes...
  • Page 6 Note: It is recommended to insert the webcam and NeuroLynQ span directly into the USB ports on the laptop running NeuroLynQ via the active USB extenders and not through a USB hub. If the laptop running NeuroLynQ has only two USB ports then it is recommended to...

  • Page 7: Install Hardware

    (1/8) NSTALL ARDWARE STEP 1 – Connect the USB Hub to its AC adapter. Insert the power plug into a mains power socket. STEP 2 – Connect the USB Hub to its USB cable. Insert the other end into a USB Port of the PC either directly or via the supplied USB extender and UTP cable.
  • Page 8 (2/8) NSTALL ARDWARE STEP 7 – Verify driver installation: A. Run the Device Manager: Press [Windows Key] + R; type devmgmt.msc; click “OK”. Expand the ‘Universal Serial Bus Controllers’ category. Two USB Serial Converters (A, B) are installed for each Span. Four USB Serial Converters (A,B,C,D) are installed For each Base6 or Base15.
  • Page 9 (3/8) NSTALL ARDWARE STEP 8 – Verify driver installation - continued: Right-click on one of the USB Serial Converters; click Properties. D. Go to “Driver”; check if FTDI Driver v2.12.0.0 or later is installed → Correct Driver has been installed! Go to “Advanced”;...
  • Page 10 (4/8) NSTALL ARDWARE STEP 9 – Download the FTDI Driver: A. Go to http://www.ftdichip.com/Drivers/VCP.htm. Download the latest Windows “setup executable”.
  • Page 11 (5/8) NSTALL ARDWARE STEP 10 – Manual Driver installation: Right-click the downloaded file; “Run as administrator”: Press “Yes” if this screen if shown: N.B. If a security warning pops up, click “Run”.
  • Page 12 (6/8) NSTALL ARDWARE STEP 11 – Manual Driver installation - continued: Click “Extract”: Click “Next”: Accept and click “Next”:...
  • Page 13 (7/8) NSTALL ARDWARE STEP 12 – Manual Driver installation - continued: Drivers are installing: Click “Finish”: Click “Restart Now”: N.B. After restart, repeat STEP 7 before proceeding!
  • Page 14 NSTALL ARDWARE The NeuroLynQ software supports the use of a HD webcam: The drivers for the webcam should install automatically when inserting it into the NeuroLynQ server • If the driver fails to install, please visit the manufacturer’s website ( http://support.logitech.com/en_us/product/webcam-c930e-business...

  • Page 15: Install Software

    NSTALL OFTWARE N.B. Only continue with installing the NeuroLynQ software if the driver installation has been verified (Install Hardware - STEP 8). STEP 1 – Obtain the latest NeuroLynQ software. STEP 2 – Extract the installer zip-file. STEP 3 – Double-click “setup.exe” and follow the instructions.
  • Page 16 NeuroLynQ Sensor Limit: The number of NeuroLynQ sensor units you can use simultaneously in the software is a parameter of the license. If you buy a license for one NeuroLynQ sensor unit, you can only use the software with one unit at a time. Contact Shimmer for more info through info@shimmersensing.com...
  • Page 17 (2/3) ICENSING CTIVATION N.B. NeuroLynQ requires a license to utilize the software Activate NeuroLynQ software (license key required)
  • Page 18 (3/3) ICENSING ANAGEMENT Help -> Manage Licenses Licensee details License details You can deactivate an activation for NeuroLynQ to free up an activation for another computer N.B. You can only deactivate the license for the computer you are working on!

  • Page 19: Conduct A Neurolynq@Home Trial

    STEP 3 – Generate NeuroLynQ@Home settings file through NeuroLynQ > Application Settings > NeuroLynQ@Home STEP 4 – Load the settings file into NeuroLynQ@Home and enter Participant ID. No repeat of Participant ID in different caps. STEP 5 – Follow the instructions to wear the sensor and then connect it to start the trial.

  • Page 20: Home Screen

    CREEN Notifications. Applications Settings, see “Application Settings” section. Help. Click on this tile to start...
  • Page 21 And audio source i.e Logitech C930e Enable a webcam to Record video/audio as well as NeuroLynQ data NB: The use of a webcam is not a requirement in order for the software to run and it’s use is at the user’s discretion...
  • Page 22 – P 1 – A ANAGE EVICES EBCAM Controls to maximise and minimise the webcam window Including a function to pop out the webcam Audio meter to indicate whether the audio source is functioning on the webcam and a record indicator to show if the video is being recorded to a file Slide out webcam overlay...
  • Page 23 – P 1 - C ANAGE EVICES ONFIGURE Select a Shimmer. Change the Shimmer Name for the selected Shimmer; if changing this is desired. After the Shimmer Name has been changed for all Shimmers, click ‘WRITE CONFIG’.
  • Page 24 – P 1 - C ANAGE EVICES ONFIGURE Click ‘DONE’ when configuration is complete.
  • Page 25 – P 1 – ANAGE EVICES START TRIAL Click “START” to start a new trial. Click ‘PLAYBACK’ to playback an previously recorded dataset for review and demo purposes In case of a software issue, “RECOVER” allows you to recover the last trial (either resume the last session of that trial or start a new session within that trial)*.
  • Page 26 - or use the automatically generated name. The automatically generated trial name is in the format: “DAYxxHyyMzzS” (e.g., “Fri15h41m52s”). Select the input to the group response algorithm. If not using the ECG portion of the NeuroLynQ sensor, then select ‘GSR’ Click “OK”.

  • Page 27: Manage Devices - Part

    – P ANAGE EVICES PAIRING Unpaired Shimmers The frequency spectrum is being analysed to determine the optimal channels to use; no user action is required. NB: Bluetooth and WiFi enabled devices share the same 2.4GHz frequency band as the Shimmers. Interference from such devices can result in a lower packet reception rate for the Shimmers.
  • Page 28 Subsequently, the software will automatically start to pair Shimmers to Spans. A green tick on the Shimmer indicates a successful pairing When a Shimmer has been paired with a Span, it will start streaming automatically.
  • Page 29 – P ANAGE EVICES EXPAND Expand by clicking on the “+” this shows the Shimmers per Span. 10) Right-click on “DEVICES” and click “Show Advanced All” to get more info on the Spans and Shimmers, e.g. the firmware version.
  • Page 30 ESPONDENT 11) Click the ‘Set Respondent ID’ button if you want to add a text identifier on the fly for each NeuroLynQ unit. (Optional) 12) Add a text identifier for each unit e.g. use the subject’s name or initials 13) Press the ‘DONE’ button to...
  • Page 31 TART Click on the tile to go to Live Data.
  • Page 32 Shimmers in the visualizations Right-click to sort or hide Shimmers or to show the respondent ID instead of the Shimmer name View of individual’s and group response instantaneously View of individual’s and group response over time...
  • Page 33 ROUP ESPONSE XPLAINED The NeuroLynQ software provides a colour coded output to indicate how subject group is responding to the stimulus High response – The subject is very engaged with the stimulus Medium response– The subject is somewhat engaged with the stimulus No response –...
  • Page 34 – V 2 – P LOT PER ENSOR The plot per sensor view shows a live data trace of the GSR and HR data for each device in the trial. There are plot configuration options accessible by right-clicking on the plot...
  • Page 35 • Reported as the percent deviation from the original baseline • Provided a quick impression of individual experience Calculate GSR baseline per NeuroLynQ device and apply the normalization calculation respectively GSR normalized as can be seen by the signals starting...
  • Page 36 – V 3 – P LOT PER HIMMER The plot per Shimmer view shows a live data trace of the GSR and HR data for each device in the trial. There are plot configuration options accessible by right-clicking on the plot...
  • Page 37 – V 4 – D ASHBOARD The dashboard view gives a live status update on the NeuroLynQ unit performance including SD card state, battery charge percentage, data packet reception rate percentage as well as the Shimmer’s most recent GSR and HR data packets...
  • Page 38 SD cards of the Shimmers WARNING!! needs to be imported after Do not switch off Shimmers after undocking recording has stopped, see otherwise the synchronization and application “Manage Devices – part2 – of Event Markers to this Shimmer’s data will fail. import”.
  • Page 39 Shimmer is docked. *Note: the minimum number of syncs must be obtained in order to ensure a valid timestamp output from the Shimmer data. Sync messages are transmitted from the Spans to the Shimmers every 30 seconds.
  • Page 40 – U SING VENT ARKERS Event markers can be used to annotate incidents that occur during a data recording Add or Edit event markers Clicking the “Event Marker” panel to slide out buttons which can be used to annotate the data...

  • Page 41: Live Data

    – E DITING VENT ARKERS Enter “NAME”, select “TYPE” and This screen appears after clicking Hide individual Event Markers or all the Edit/Add Event Markers button. add “DESCRIPTION. Event Markers. Click on the ‘+’ to add new Event Click “DONE” when finished editing Click on the highlighted pencil to Markers.
  • Page 42 – E VENT ARKER IN PLOT Clicking on the Event Marker button adds the Event Marker to the plot; in this case the event type is a pulse. Example toggle event type shown...

  • Page 43: Manage Devices - Part

    – P ANAGE EVICES IMPORT Click on the tile to return to Manage Devices for importing the data recorded on the SD cards of the Shimmers.
  • Page 44 – P ANAGE EVICES IMPORT When recording is finished, dock the Shimmers with data recorded on their SD cards. Click “IMPORT” to start the import process.
  • Page 45 – P ANAGE EVICES IMPORT Click “DONE” when import is complete.

  • Page 46: Manage Data

    ANAGE TART Click on the tile to go to manage data.
  • Page 47 – A ANAGE PPLY VENT ARKERS N.B. This screen appears if • Event Markers were added while the data was being recorded. • Event Markers file loaded into the dataset. • Downloaded trial contains added Event Markers. Apply the Event Markers to the recorded data sets.
  • Page 48 ANAGE ENERAL Enter trial and session descriptions here. Synchronisation is successful for this session.
  • Page 49 ANAGE LAYBACK Press the ‘PLAY’ button on a PC recorded session to play back the dataset and webcam footage as if the data was streaming from the devices in real time...
  • Page 50 ANAGE LAYBACK All of the visualisation tools are available when playing back data!
  • Page 51 – ANAGE VENT ARKERS Add, edit or delete event markers post data collection to segment data...
  • Page 52 – ANAGE VENT ARKERS Open the edit event marker dialog Create a new event marker by pressing “Add New Event Marker” Edit the event properties i.e. it’s name, it’s description and it’s start (and end time if applicable). Note the time is taken from the current position of the playback slider.
  • Page 53 – L ANAGE VENT ARKERS Right Click on the trial and select the Load Event Marker File option. Note: We do not recommend using this function on databases which already have existing Event Markers...
  • Page 54 Event Marker Type to be set to 1, to identify it as a Toggle Type Event. The BT and SD session ID for the purpose of NeuroLynQ@Home should be set to 1 respectively. The Start Time Stamp (unix) is the start of the toggle, and the end time stamp the end of the toggle.
  • Page 55 – E ANAGE XPORT To export data from one or more sessions: Select data to export. Press the EXPORT button. Select desired export settings. Press ‘OK’...
  • Page 56 ANAGE XPORT Click “OPEN PATH” to open the location of the exported data. Click “DONE” to close the progress dialog.
  • Page 57 – F ANAGE ILTER In order to apply a filter to recorded signals: Select data from one or more sessions. Press the FILTER button.
  • Page 58 ANAGE ILTER Select the signals to filter. Click the tile to select filter type and filter parameters. Click the arrows to add a selection of filtered signal(s). Press “APPLY” to start applying the filter(s).
  • Page 59 ANAGE ILTER Click “DONE” when processing is complete. Filtered signal(s) are added to the MANAGE DATA list.
  • Page 60 – D ANAGE ELETE To delete recorded data, perform the steps below. Warning: this will permanently delete the selected data from the PC. Select data to delete. Press the DELETE button. Click “Yes” to confirm. Click “DONE” when complete.
  • Page 61 – SD – P ANAGE ROCESS Run the group GSR + HR algorithm on SD recorded data to produce the same form of group response output as obtained when capturing live data as on page 31/32 Select one or SD Recording sessions from the same trial Press the PROCESS SD button to perform the aggregation on...
  • Page 62 – SD – P ANAGE ROCESS Run the group GSR + HR algorithm on SD recorded data to produce the same form of group response output as obtained when capturing live data as on page 31/32 Be patient as the algorithm is run on the data, this may take awhile depending on the size of the dataset...
  • Page 63 ANAGE EFRESH After a trial/database has been added or deleted from the Shimmer workspace database directory use the Refresh button to reload what is shown on the user interface...
  • Page 64 Click the Download “Download Trial” or button to download “Download Participant”. Only check the “Disable NeuroLynQ@Home trial Timeout” when downloading from S3 server large files with slow Internet connection. Note: You are not recommended to cancel the ongoing download progress as it will corrupt the files.
  • Page 65 NALYTICS TART Click on the tile to go to analytics.
  • Page 66 – M – A NALYTICS ANAGE TUDIES TUDY A study can be defined as a collection of one or more trials each containing one or more sessions that are grouped together in order to perform analysis on the collection Press the icon to add a new study Enter a name (mandatory) and a description (non-mandatory) for the...

  • Page 67: Analytics

    TUDIES ATA TO A TUDY Select one or more sessions from one or more trials from your recorded NeuroLynQ datasets that you wish to add to your study. Press the ‘Add to Study’ button Observe that your study now contains the datasets selected...
  • Page 68 – M – O NALYTICS ANAGE TUDIES THER There are a number of other useful operations you can perform on a study Remove contents from a study by selecting one or more sessions from one or more trials and press the ‘Remove From Study’...
  • Page 69 – M – NALYTICS ANAGE TUDIES ELECT TUDY When you’re satisfied with your study (or studies), you can select a single study to proceed through the analytics module, there are number of avenues available. Select a single study to proceed to the next stage of the analytics module There are three routes to take...
  • Page 70 – D – C NALYTICS EFINE EMOGRAPHICS REATE EMOGRAPHIC Demographics can be used (not mandatory) to add context to each participant e.g. if they’re male or female, if they are over 30 years old or under 30 years old etc. Press the icon to create a new demographic or copy an existing...
  • Page 71 Continue until you have populated your required demographics all respondents in all sessions in this study. You can also edit the respondent ID i.e. a text tag that can be used associate a NeuroLynQ sensor with a person.
  • Page 72 – D – O NALYTICS EFINE EMOGRAPHICS THER There are a number of other useful operations you can perform on the demographics Delete a demographic (note that it will only be permanently deleted when you perform a save, you can recover a deleted demographic if it hasn’t been saved using 3) Edit a demographics' name (e.g.
  • Page 73 – D – NALYTICS EFINE EMOGRAPHICS XAMPLE HOWING EMOGRAPHICS You can proceed to add as many demographics as you wish (note that it’s not mandatory to add demographics to the study) Once your satisfied with the demographics, you can proceed to the ‘Manage Segments’ part of the analytics module.
  • Page 74 – M – A NALYTICS ANAGE EGMENTS EGMENT A segment can be defined as a group of one or more respondents in a study. Users can add/edit/delete as many segments as they wish. Press the icon to add a new segment Enter a name (mandatory) and a description (non-mandatory) for the segment Press the ‘Ok’...
  • Page 75 – M – A NALYTICS ANAGE EGMENTS ESPONDENTS EGMENT Select the desired segment from the table to add respondents to (note that this example only shows one segment in the table however it’s likely a real study you’ll have multiple segments Filter the respondents by selecting one or more demographics e.g.
  • Page 76 – M – O NALYTICS ANAGE EGMENTS THER There are a number of other useful operations you can perform on the segments Delete a segment (note that it will only be permanently deleted when you perform a save, you can recover a deleted segment if it hasn’t been saved using 3) Edit a segment’s name and/or description Reset all segment to their last saved state...
  • Page 77 – M – NALYTICS ANAGE EGMENTS XAMPLE HOWING EGMENTS You can proceed to add as many segments as you wish. Once your satisfied with the segments, you can proceed to the ‘Analyse Segments’ part of the analytics module.
  • Page 78 – A NALYTICS NALYSE EGMENTS ROCESSING A study can be defined as a collection of one or more trials each containing one or more sessions that are grouped together in order to perform analysis on the collection Select one or more segments that you wish to process Select one or more event markers that you wish to process the segment over.
  • Page 79 – A – E NALYTICS NALYSE EGMENTS XPORT Press the ‘EXPORT’ button Configure the export settings as you wish Press the ‘Ok’ button once you’re satisfied with the export configuration...
  • Page 80 – A – E NALYTICS NALYSE EGMENTS XPORT Two different file types can be exported 1) Window metric file 2) Data trace file A single window metrics file with the maximum and average values for each segment and event marker A data trace file per event marker...
  • Page 81 – A – NALYTICS NALYSE EGMENTS THER There are a number of other useful operations you can perform when analysing segments Collapse and expand different sections of the interface Delete all or just selected processed data Quick select/deselect or processed data...

  • Page 82: Appendices

    APPENDICES The following options and functionality may be useful from time-to-time but will mostly likely not be needed on regular occasions.

  • Page 83: Program Span Firmware

    ROGRAM IRMWARE HIMMER You should only need to update the firmware on the NeuroLynQ units if you see this To program all the docked Shimmers that are switched on with firmware → click the “FIRMWARE” button. N.B. Firmware can only be...
  • Page 84 ROGRAM IRMWARE HIMMER You should only need to update the firmware on the NeuroLynQ units if you see this Select the most recently released firmware – “QUICK”. Or select manually added firmware – “OTHER”. Click “PROGRAM”. Click “DONE” when complete.
  • Page 85 ROGRAM IRMWARE If new firmware is available a notification is shown in the top right corner of the screen. New firmware can be downloaded after clicking on the notification icon. Right-click on the Span. Click “Program SPAN Firmware.” . N.B. Firmware can only be programmed before a trial is started or recovered.
  • Page 86 ROGRAM IRMWARE Select the most recently released firmware – “QUICK”. Or select manually added firmware – “OTHER”. Click “PROGRAM”. Click “DONE” when complete.

  • Page 87: Application Settings

    PPLICATION ETTINGS The application settings can be changed here.
  • Page 88 PPLICATION ETTINGS General application settings. Settings in relation to firmware programming. Default export options for the Manage Data tab. Enable/disable Span channels. Adjust plot options – only relating to the visualization of the signals in “Live Data” – not to the actual data that is being recorded.
  • Page 89 URL. Panel to add or edit Trial Enter approximate data Settings to be used for sampling period, This cannot NeuroLynQ@Home trial exceed 256Hz. We recommend recording. setting it to 200ms. Hit “CANCEL” to cancel Enter required battery limit changing settings.

  • Page 90: Led Behaviour

    LED B – S EHAVIOR HIMMER LED Position A: Operational Status Status LED Sequence Description Standby GREEN - 0.1s ON/2s OFF Programming FW BLUE - 0.1s ON/0.1s OFF Streaming Only BLUE - 1s ON/1s OFF Recording Only GREEN - 1s ON/1s OFF Streaming and 1s BLUE/1s OFF/1s GREEN/1s OFF Recording...
  • Page 91 LED B – S EHAVIOR HIMMER LED Position B: Battery Status and Specials Status LED Sequence Description GREEN – solid ON Fully Charged Charging ORANGE – solid ON Fully Charged GREEN - 0.1s ON/5s OFF Medium Charge ORANGE - 0.1s ON/5s OFF Low Battery RED - 0.1s ON/5s OFF Invalid Heart Rate...
  • Page 92 LED B EHAVIOR N.B. The table below applies to Bases that are switched on with NeuroLynQ running. When a Base is powered up all the LEDs in positions A, B and C are solid ON until the Base detects the USB Port of the PC.

  • Page 93: Useful Things To Know

    Shimmer and external devices. N.B. Switching off Shimmers results in the loss of the RTC information. To set the RTC on the Shimmer, insert the Shimmer into a Shimmer Dock or Base while the Consensys software is running.
  • Page 94 SEFUL HINGS TO ▪ To import data from the backup, you only need to open the Manage Data category in the Application Settings and click on Open the backup ▪ After selecting a backup directory and clicking Next, you will be direct to the second step of the import process...
  • Page 95 - internal SD error and PC to-Shimmer SD error. These can be identified through NeuroLynQ through the ‘Advanced’ device view 1. The Shimmer is having difficulty accessing the SD card internally. 2. The NeuroLynQ software is having difficulty communicating with the SD card.
  • Page 96 SEFUL HINGS TO ▪ NeuroLynQ includes a link to this guide in the software. Please consult this document if encountering an issue with the NeuroLynQ software or hardware. Help -> User Guide...
  • Page 97 ▪ The NeuroLynQ package includes a separate software application that enables the user to add a data trace from a NeuroLynQ csv file onto an arbitrary video file and produce an output video file of same. Help -> Video Assistant...
  • Page 98 Note: It is a known issue that some media players e.g. Windows Media Player fail to play the audio From video files produced by the Shimmer Video Assistant software. It is strongly recommended to use the VLC media player to play the published video files.
  • Page 99 (see below for illustration of hard disk drive nearing capacity) 2. If step 1. above is observed, NeuroLynQ datasets should be moved from the hard disk drive to a secure external location, example procedural steps to follow on the next page.
  • Page 100 PACE Example procedure to free-up hard disk drive space 1. Choose the NeuroLynQ datasets that you would like to archive from the ‘Manage Data’ tab. 2. Identify the dataset’s database name (a set of ten digits e.g., '1435243126.db’). See page 84 for how to do this.
  • Page 101 –D ROUBLESHOOTING SSUES NITIALISATION RROR...
  • Page 102 –D ROUBLESHOOTING SSUES RIVER RROR...
  • Page 103 –D ROUBLESHOOTING SSUES RIVE RROR Contact the technical support team through Shimmer’s online support system should you see this error. http://shimmersensing.com/support/wearable-sensing-support/...
  • Page 104 SSUES ▪ If you experience any issue while installing or using the Shimmer Dock or Consensys Base, please consult the relevant sections of this guide. If the issue has not been resolved, please submit a support query through the support section of our website N.B.
  • Page 105 ROUBLESHOOTING ECORDED ▪ If you experience an error with your recorded data in NeuroLynQ ‘Manage Data’, please consult this document first. If the issue has not been resolved, please submit a support query through the support section of our website N.B.
  • Page 106 – R ROUBLESHOOTING ECORDED 2. To navigate to the Shimmer_Workspace directory: A. Click on the NeuroLynQ ‘Application Settings’ menu B. Click on the ‘Open’ button to open the workspace directory...
  • Page 107 – R ROUBLESHOOTING ECORDED 3. The Shimmer Workspace will appear as below. The important directories to note are the ‘Backup’ and ‘Database’ directories - as highlighted. The ‘Backup’ directory is only relevant if data was imported from the Shimmer’s SD card...
  • Page 108 – R ROUBLESHOOTING ECORDED 4. 'Database‘ Directory: This directory stores a database folder per 'trial' whereby the database filename is the trial configuration time in Unix Timestamp format. For example, the selected database below, '1490706960’, corresponds to a trial which was configured on the '28th March 2017 at 14:16 GMT+1‘...
  • Page 109 This directory contains the binary data files copied from the Shimmer during the import of data that was recorded to the Shimmer’s on-board SD card. The structure of the directory is as shown below. If sending this data to Shimmer Support, it is sufficient to just identify the import date,...
  • Page 110 NOWN SSUES Firmware It is a known issue in SR57_GQ_802154_v1.1.0.txt firmware that on very rare occasions (~1 in 50 power cycles) a sensor unit can freeze or lock-up indicated by the LED pattern shown in the image below. There is a known workaround solution for this issue should it arise which is to: 1.
  • Page 111 URTHER UESTIONS Why not reach out to us through our online ticketing support system? http://shimmersensing.com/support/wearable-sensing-support/ Or contact us through one of our social media channels...

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