Configuring the Wi-Fi sensor

There are several different versions of the Wintersense road temperature sensor, with each supporting a different communications network. The instructions below are for the version that supports Wi-Fi.

With our Wi-Fi version you can configure the Wi-Fi network the sensor should connect to, whilst also specifying how often the sensor should sample the road temperature and upload the data it has recorded. The steps involved are detailed below.

Step 1. Install the WinterSetup software

The easiest way to configure the sensor before installing it is to use our WinterSetup software. Please click on a link below to download and install the appropriate version for your device.


Installation instructions:
  1. Download and Unzip.
  2. Drag/Copy WinterSetup into your Applications folder.
  3. Double-click to open.
  4. You may find you have to change your security settings to allows this application to open. These settings can be found in System Preferences > Security and Privacy, under the section titled: Allow apps downloaded from:. You should be able to make an exception for this application rather than having to change the setting to: Allow apps download from: Anywhere.


Installation instructions:
  1. Download and Unzip.
  2. Copy the unzipped folder to a safe place on your computer.
  3. Within the folder there is a file called WinterSetup.exe. Double-click it to begin the application (may take a few moments to open).


Installation instructions:
  1. Click the link above from your Android smartphone to download the .apk file.
  2. It may ask you tick the box under: Settings > Security > Unknown sources, before it installs.
  3. The application should begin installing.

Step 2. Turn on the sensor

Simply press the On/Off Button on the side of the sensor. A coloured light will turn on under the Wi-Fi Mode Button when you do so.

Wintersense sensor buttons

Step 3. Understanding the sensor modes

The sensor has two modes:

  • Direct Mode – Indicated by a constant green light under the Wi-Fi Mode Button. It is in this mode that the sensor should be paired with a smartphone/laptop to view live data and configure the sensor for Remote Mode.
  • Remote Mode – Indicated by an intermittent blue light under the Wi-Fi Mode Button. The sensor will be in this mode operationally, during which time it should be connected to a nearby Wi-Fi access point. The light flashes blue every time it records/uploads a new observation. Rather than waiting for the next observation to be made automatically, you can record and upload a new observation immediately by clicking the Wi-Fi Mode Button. This comes in handy for testing.

Switching Modes

Direct Mode Remote Mode: simply click the Wi-Fi Mode Button. This switch is performed automatically whenever you send configuration settings to the sensor using the WinterSetup application.

Remote Mode Direct Mode: press and hold the Wi-Fi Mode Button for several seconds.

Step 4. Connect to the sensor

When the sensor is in Direct Mode it produces its own Wi-Fi hotspot, which you can connect to with a smartphone or laptop. Once connected you can use the WinterSetup application to view live data or configure the device for Remote Mode.

Here's how to connect:

  • If you haven't already, download the appropriate WinterSetup application for your device.
  • Check that the sensor is in Direct Mode, as indicated by a green light.
  • On your smartphone/laptop check the list of nearby Wi-Fi hotspots. The network name (SSID) of the sensor will look something like: Sentinel_101001. Select this network.
  • If this is the first time you have connected to this sensor then you will be prompted for a password. The password is: aginova1234
  • Once connected open up the WinterSetup application. You should see live data from sensor.

Step 5. Configure for Remote Mode

In the configuration section of the WinterSetup application you can configure the sensor for Remote Mode.

Here's an example of a completed configuration on the Android version of the WinterSetup software:

WinterSetup example config

With this configuration, as soon as the Switch to Remote Mode button is clicked the sensor will switch to direct mode and look for a Wi-Fi hotspot named: PrettyFlyForAWiFi and authenticate with the password: password1234. It will record the road temperature every 5 minutes (i.e. 300 seconds) and upload its measurements every 30 minutes (i.e. 6 × 300 seconds) to the Server Address. For most deployments Store and Forward and DHCP should be left enabled.


In order for sensor data to reach the wintersense servers the Server Address must be set as follows:

Side note: Turning the sensor off

When the sensor is not being deployed it's best to turn it off to conserve battery. Turn it off as follows:

  • In Direct Mode press the On/Off Button.
  • In Remote Mode press and hold the On/Off Button for several seconds.

A red light indicates that the sensor is turning off.