MQTT Sensor Station
The project combines Arduino compatible EtherTen, or EtherMega, 802.3af Power-over-Ethernet regulator, few sensor modules and MQTT.
Arduino - Arduino 101
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Arduino - Arduino IDE
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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.
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.
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.