HWg-STE Ethernet thermometer

Description: This plugin reads values from an ethernet thermometer by

Type: Driver - Categories:

Development status: Stable Release

Tested on: All platforms

Developer: Mauro Cicolella


This plugin reads values from an ethernet thermometer by You can connect to it up to two sensors of temperature and humidity. Indoor/outdoor sensors available. Even temperature sensor with flat cable for temperature monitoring in the fridges. More details at

It works sending periodically SNMP (Simple Network Management Protocol) request to the device using the OID (Object Identifier) specified by the manufacturer (


All the configuration parameters are included in the hwgste-manifest.xml file. You can use it without any changes.

Each thermometer data are included in a <tuple></tuple> block where you need to specify:

  • ip address of the device
  • number of sensors (2 by default)

How to read temperature

Add a thermometer object to your Freedomotic environment:

  • Right click on the thermometer in the environment to show its configuration panel
  • Change the property “protocol” to “hwgste”
  • Change the property “address” to a string composed of HWG-STE-ADDRESS:SENSOR-ID where HWG-STE-ADDRESS is the ip address of your device and SENSOR-ID is the id of your monitoring sensor. An example address can be The plugin is able to read any relay status change and update the object one.
  • Under “temperature” (in Data Sources) select from the list HWg-STE reads temperature.