IP thermometer with LED display

Nano Temperature Sensor PoE is an IP thermometer designed for remote temperature reading via Ethernet. The module has been equipped with an LED display which shows the current temperature reading from the 1-Wire DS18B20 sensor. The device can be powered by PoE IEEE 802.3af (Power over Ethernet).

Preview

Highlights

Technical characteristics

Power supply

  • PoE IEEE 802.3af or 10-24V DC screw terminal,
  • Power consumption: 1,5W

Inputs

  • screw connectors for the 1-Wire bus,
  • sensor DS18B20,
  • measured temperature range: -55°C to +125°C.

LAN

  • 1 RJ45 Ethernet port, 10 Mbps Half Duplex.

Supported protocols:

  • HTTP (GET),
  • SNMP (TRAP),
  • Modbus TCP,
  • TCP (available protocol),
  • MQTT.

Alarm

The device has a built-in alarm function. The user can set a low, high, and high&low level alarm. After an alarm occurs, a virtual output will be enabled. This means the user can easily check the current alarm status via available protocols (HTTP, Modbus TCP or SNMP).

Additionally, the module is equipped with M2M functionality. Nano Temp can work autonomously with other products of the Nano and Lantick product lines. Using M2M connection, the devices create a remote relay activation path when alarm conditions occur.

Examples

In the Nano Temp module, there are several resources that can be read using the HTTP GET protocol:

  • status.xml – basic information about the device,
  • temp1.txt – current temperature shown in text form.

Example of the status.xml resource:

<response>
<out>00000000</out>
<on>00000000</on>
<in>00000000</in>
<counter1>0</counter1>
<temp1>34.3</temp1>
<mac>00:00:00:00:00:00</mac>
</response>

The value <on>00000001</on> indicates an alarm state.

Example of how the MQTT service works:

The Nano Temp sends the current temperature to the Inveo cloud.

Data is sent every 1 minute and every time it changes. After installing the appropriate MQTT application, the temperature is available directly on the smartphone.

The advantage of using the MQTT service is that you only need to connect the Nano Temp to your home router, configure the application on the smartphone and enjoy the remote temperature reading.

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