---
title: "MQTT Sensor Station"
url: "https://maker.wiznet.io/ssekim/projects/mqtt-sensor-station/"
markdown_url: "https://maker.wiznet.io/ssekim/projects/mqtt-sensor-station/md"
type: "UCC: User Created Content"
author: "Marek Kuziel"
author_url: "https://kuziel.nz/notes/2015/04/mqtt-sensor-station.html"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "Marek Kuziel"
original_url: "https://kuziel.nz/notes/2015/04/mqtt-sensor-station.html"
published: "2024-03-29"
language: "en"
hardware: ["Arduino 101"]
likes: 0
views: 508
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# MQTT Sensor Station

> The project combines Arduino compatible EtherTen, or EtherMega, 802.3af Power-over-Ethernet regulator, few sensor modules and MQTT.

Original author: Marek Kuziel (source: https://kuziel.nz/notes/2015/04/mqtt-sensor-station.html)

## Components

- **Arduino 101** x 1 ([docs](https://software.intel.com/en-us/iot/hardware/curie))
- Software: **Arduino IDE** ([docs](https://www.arduino.cc/en/software))

## Article

**Introduction **

This project integrates Arduino-compatible hardware like EtherTen or EtherMega, an 802.3af Power-over-Ethernet (PoE) regulator, several sensor modules, and MQTT.

The rationale behind this design choice stems from the simplicity of Arduino-like systems combined with plug-and-play sensor modules, enabling both power and connectivity over a single network cable.

Drawing from my prior experience with The Foundation's sensor station project and experimentation with MQTT, EtherMega, and Beaglebone, this current iteration builds upon past successes.

At present, I operate two sensor stations: one in the garden and another in the office.

![Testing Office Station](https://kuziel.nz/images/home-made/ha/office-sensor-station-prototype-1600x1000.jpg)

**Garden Station **

The Garden Station comprises an EtherTen equipped with an 802.3af PoE regulator and sensor modules including the DHT22 (measuring temperature and humidity), BMP180 (for barometric pressure), and a Keyes photo sensor (for light detection).

More Than Just Weather Monitoring While the Garden Station serves as a weather monitor, it's designed to offer more functionality. Some sensors, like the seismic sensor, are not solely weather-focused.

![Garden Sensor Station prototype](https://kuziel.nz/images/home-made/ha/garden-sensor-station-prototype-1600x1000.jpg)

**Hardware Setup **

Initially, I soldered the PoE regulator onto the EtherTen board. To house the EtherTen-PoE regulator combo, I utilized a waterproof plastic enclosure.

Drilling holes in the enclosure, I installed glands to facilitate the passage of the network cable and wires for connecting the sensor modules.

---

Source: https://maker.wiznet.io/ssekim/projects/mqtt-sensor-station/