Olpas TentApp User manual
Olpas TentApp User manual
Breadcrumbs

Connecting Your Sensor

1. Physical Setup

Before using the TentApp, you must physically connect the sensor to your computer.

  1. Connect the M12 connector of the Olpas Configuration Cable to your sensor.

  2. Plug the USB end of the cable into an available USB port on your computer.

  3. Ensure your computer is powered on (the USB port must provide enough power to wake the sensor).

2. Starting the Connection

  1. Open the Olpas TentApp in Google Chrome or Microsoft Edge. You can use the public online version at https://dashboard.olpas.tech/tool.html or a local downloaded version if no public internet is available.

Screenshot 2026-03-17 at 21.28.48.png


  1. On the Welcome screen, click on the Sensor Model you are trying to connect (e.g., Tentacle, Inline or Nerite).

Screenshot 2026-03-17 at 21.24.54.png


  1. The main dashboard will load. Locate the Serial Connection box at the top of the page.

Screenshot 2026-03-17 at 21.29.15.png

  1. Click the Connect button.

3. Selecting the USB Port

Because the TentApp runs in your browser, it needs your permission to access the USB cable.

  1. After clicking "Connect", a small browser pop-up window will appear near the top-left of your screen.

  2. Look for a device named "USB Serial Port", or "COM[Number]". info These pup-ups might vary on your specific computer, operating system of browser.

  3. Click on the device name to highlight it, then click the Connect button inside the pop-up.

image-20260227-150557.png


4. Understanding the Status Bar

At the top of the dashboard, there is a colored Status Bar that tells you exactly what the sensor is doing. Watch this bar during the connection process:

  • ⬜ Idle (Grey): The app is waiting for you to click connect.

Screenshot 2026-02-28 152211.png

  • 🟨 Connecting (Yellow): The app is opening the USB port and asking the sensor for its initial configuration.

Screenshot 2026-02-27 160743.png

  • 🟩 Sensor Ready (Green): The connection was successful! The app is now actively reading live data.

Screenshot 2026-02-27 160758.png

  • 🟥 Error (Red): The connection failed. (See the Troubleshooting section below).

Screenshot 2026-02-27 160726.png


5. Connection Troubleshooting

If the app fails to connect, try the following steps:

  • Browser Error: Ensure you are not using Firefox or Safari. You must use a browser that supports WebSerial (Chrome/Edge/Opera) and the browser might have the necessary permissions to access your USB port.

  • Port in Use: Check if another application is already using the COM port. Close the other app and try again.

  • Loose Cable: Unplug the USB cable, wait 5 seconds, plug it back in, and hard-refresh the webpage.