Products
LinkSquare 1 LS SWIR SDK
Solutions Support Stratio, Inc.

FAQ

  • You can download the software from the link provided in your order-related emails.

  • You can find your UDID in the Quick Start Guide that is included in your LinkSquare Basic.

  • LinkSquare Basic provides both raw and pre-processed data.

  • Pre-processing minimizes measurement variation and reduces noise.

  • No. You will need your own tools, such as Excel or MATLAB.

  • We do not provide data-related services to individual LinkSquare Basic users. However, we do work with enterprises or groups in search of custom database solutions.

    Please see our Solutions page for more information.

  • Stratio does not have access to, or ownership of, any of the data you collect with LinkSquare Basic.

  • IoT Mode and AP Mode are the names of the two different modes through which you can connect to a LinkSquare device.

    You can use IoT Mode when there is a Wi-Fi network available. The LinkSquare device will connect to your computer (iPhone) through the existing Wi-Fi network without any interruption to your internet connection. In situations where your Wi-Fi connection information does not change often, IoT Mode makes it easy to connect your LinkSquare device.

    You can use AP Mode when there is no Wi-Fi network available. LinkSquare will be a wireless access point (WAP) and your computer (iPhone) will connect to LinkSquare directly. In this case, your internet connection will be interrupted.

  • Yes. LinkSquare can only be connected through Wi-Fi. Your computer (iPhone) needs a Wi-Fi network adaptor.

  • We recommend that you purchase a USB Wi-Fi network adaptor that supports 802.11 b/g/n.

  • The only difference between Basic Package and Professional Package is that the latter contains API software. The API software gives you access to the LinkSquare device, allowing you to create a private label application with the LinkSquare device.

    Therefore, it is advised that you get Basic Package if you plan to only collect and analyze spectral data. If you plan to make a private label application, you should get Professional Package. Please see below for more detailed information.

    Basic Package (LinkSquare 1 / LinkSquare NIR)

    Each package contains:

    • 1× LinkSquare device (LinkSquare 1 or LinkSquare NIR)
    • LS Collector software (no subscription required)
    • LinkSquare app (free download)

    It is recommended for:

    • Collecting spectral data portably and/or in the field
    • Exporting spectral data to third party programs for analysis
    • Using pre-made applets in the LinkSquare app
    • Using AI Platform to create simple custom applets in the LinkSquare app

    Professional Package (LinkSquare 1 / LinkSquare NIR)

    Each package contains: everything from Basic Package + API software

    It is recommended for:

    • Creating customized software and applications outside of the LinkSquare app
    • Users that require control over how LinkSquare obtains spectral data
    • Institutions/organizations looking to develop customized solutions with LinkSquare

    Please note: LinkSquare API is not compatible with AI Platform.

  • Yes. You can maintain your current internet connection.

  • There are several known issues that prevent your LinkSquare from being used in IoT Mode, including:

    - Wi-Fi frequency bands other than 2.4GHz,
    - Wi-Fi standards other than 802.11b/g/n,
    - 802.11n with Modulation and Coding Scheme (MCS) index value 8 or higher,
    - Wi-Fi router not supporting mDNS service discovery,
    - Wi-Fi router requiring an extra authentication step, such as a Terms and Services agreement page, or
    - In case of computer, firewall settings blocking mDNS service discovery.

  • - 802.11b/g is fully supported.
    - 802.11n with MCS index value 7 or lower is fully supported.
    - 802.11n with MCS index value 8 or higher is not supported.
    - Other 802.11 standards are not supported.

  • Go to Control Panel > System and Security > Windows Firewall > Advanced Settings. Under 'Inbound Rules', there should be an entry that allows connections with UDP protocol to local port 5353. It should not be bound to a specific program.

  • When your LinkSquare is preparing for discovery, the blue LED lights around the LS Button will blink quickly for up to 30 seconds. When your LinkSquare is ready for discovery, the blue LED lights around the LS Button will begin to blink slowly, approximately once every 1.5 seconds. If the LED lights are green, press the LS Button once so that the LinkSquare device can change its connection mode.

  • If a LinkSquare device is connected to an existing Wi-Fi network, it becomes ready for discovery. There is a chance that the device is connected to a Wi-Fi network other than the one that your computer (iPhone) is connected to. In this case, switch to AP Mode and change the Wi-Fi network information using the LS Config program (through the Device Settings page).

  • The Device List shows available LinkSquare devices by their names. The initial device name is a 7-digit alphanumerical word. The three numbers at the end of the initial device name are the same as the last three digits of your Unique Device ID (UDID) (found in your Quick Start Guide). You can also change the device name later using the LS Config program (through the Device Settings page). Once you change the device name, the device list will show the new device name instead of the 7-digit initial device name.

  • Currently, only one software can be connected to a LinkSquare device at any one time. Please make sure that there is no other software program (e.g., LS Collector, LS Config, or LinkSquare App) using the LinkSquare device.

  • No. AP Mode requires you to connect to a Wi-Fi network created by your LinkSquare device. You will lose the internet connection.

  • The Initial Service Set Identifier (SSID) of a LinkSquare's Wi-Fi network starts with "LS-" and ends in a 7-digit alphanumerical series. This 7-digit series is the same as the initial device name explained in the IoT Mode section; the last three numbers are the same as the last three digits of the Unique Device ID (UDID) (found in your Quick Start Guide). You can also change the device name later using the LS Config program (through the Device Settings page). Once you change the device name, the SSID of your LinkSquare's Wi-Fi network is the "LS-" prefix followed by your chosen device name.

  • The initial password is eight zeros (00000000). You can change the password later using the LS Config program (through the Device Settings page).

  • You can reset the password to its initial value. First, turn off LinkSquare. Then press the LS Button to turn on the LinkSquare device. Keep holding the LS Button for approximately 20 seconds, until the LED lights around the LS Button flash. It indicates that the password is initialized.

  • Based on the SSID of the current Wi-Fi network, your computer (iPhone) is not connected to a LinkSquare device. Please make sure that the Wi-Fi network connection is properly set up.

  • In AP Mode, only one device, such as a computer, smartphone, or tablet, can be connected to your LinkSquare's Wi-Fi network at any one time. Please make sure that no other device is connected to it.

  • It can perform over 1,000 scans on a full charge.

  • It takes about 4 hours to fully charge the LS SWIR device. Once charging is complete, the red LED indicator on the back of the LS SWIR device will turn off.

  • Please refer to our website (https://linksquare.io/product-lsswirsdk) for more information.

  • 1) Make sure the LS SWIR device is powered on.
    2) (Bluetooth) Ensure Bluetooth is enabled and permissions are granted on your desktop or mobile device. Check the message at the top of the list.
    3) (USB) A USB-C data cable is required; charging-only cables will not work.

  • 1) Make sure the LS SWIR device is powered on.
    2) (Bluetooth) Ensure Bluetooth is enabled and permissions are granted on your desktop or mobile device. Check the message at the top of the list.
    3) (USB) A USB-C data cable is required. Charging-only cables will not work.

  • You can only connect to one LS SWIR device at a time on a single desktop or mobile environment.

  • The last four digits of the LS SWIR device name in the Bluetooth list match the last four digits of the device's UDID. You can use this to identify the correct device.

  • If a newer firmware version is available than what's installed on your LS SWIR device, a "Firmware Update" button will appear on the Device tab after connection. Click it to start the update. The LS SWIR device will reboot automatically after a successful update.

    Note: Firmware updates are only possible over a USB connection and require a stable internet connection during the process.

  • If unknown errors occur repeatedly and the LS SWIR device cannot operate normally, you need to boot into safe mode for firmware reinstallation.
    Hold down the scan button while powering on to enter safe mode. Then connect the LS SWIR device via USB to update the firmware.

  • If an error occurs during a firmware update, the LS SWIR device may boot into safe mode. Connect via USB and update the firmware.

  • If an error occurs during a firmware update, the LS SWIR device may boot into safe mode where Bluetooth is disabled. You can update the firmware via USB connection.

  • Try the following solution:
    - Try reinstalling the desktop or mobile app.
    - If permission requests on the mobile app are denied, the app may not function properly.
    - If problems persist, please contact customer support ([email protected]).

  • The LS SWIR device has one LED indicator.
    - If the LED is solid, the device is operating normally.
    - If it blinks rapidly or slowly, there is a firmware issue. If blinking persists, boot into safe mode and update the firmware.

  • You can use the Export function to transfer a project to another LS SWIR device.
    - On the source device: Click 'Export' at the top right of the Project tab.
    - On the target device: Click 'Import' at the top right of the Project tab.
    Follow the instructions to either scan a QR code or enter the Project ID.

    Note: Both devices must be connected to the internet. QR code/Project ID expires after 5 minutes.

  • You can export scandata from each sample in a project as a CSV file.

    - Click "Export" on the Project tab
    - Select "CSV"

    The saved folder will open automatically on desktop, and the app will show the file path on mobile.

  • If the scan button is disabled, it’s likely because:
    - The LS SWIR device is not connected
    - No sample has been selected in the Data Collection tab for saving scan data.

  • Tap the arrow next to the scan button to access advanced scan options:
    - Interval: Time gap between continuous scans.
    - Repeat: Number of repeated scans.
    You can cancel repeated scans midway if necessary.

  • Preprocessing options include:
    - None: Displays raw light intensity by wavelength.
    - Normalization: Divides light intensity by the overall brightness to minimize sample distance, thickness, and angle effects.
    - SNV (Standard Normal Variate): A commonly used normalization method in near-infrared spectroscopy.

  • Model training can only be started if:
    - At least 2 samples are selected
    - Each sample contains at least 10 scandata

  • Preprocessing options are applied as selected in the Data Collection tab. If you want to change preprocessing, modify it in the Data Collection tab.

  • After selecting a model, you can view results by scanning. Models can be created in the Training tab.

  • After selecting a model in the "Select AI Model" menu on the top right corner, you can view the results of all scans in the list.

  • If there are no models available, it means the current project has no saved models. Create a model in the Training tab and click "Save Result" to store it in the project.