The only real challenge was getting the Arduino code to generate an Elasticsearch compatible timestamp. Having WiFi makes it very easy to publish directly to Elasticsearch via the HTTP interface. Use this guide if you need help installing Arduino Libraries. Adafruit Unified Sensor Library (More information)Īdafruit BMP085U Sensor Library (this also covers the BMP180 sensor we are using).NTP - NTP is the network time protocol, it’s how we get the clock day/time from the internet to generate timestamps.You’ll also need to install the libraries below. If you haven’t already, download and install the Arduino IDE and ESP8266 Board Package. We also hook up the 3v and Ground (GND) lines to power sensor board. The ESP8266 has SPI support, so we hook up Data (SDA) and Clock (SCL) lines to the SDA and SCL lines of each board for communication. This sensor board uses SPI to communicate with the microcontroller. My first toolset, which got me through about 10 years of experimenting. You might also have a local hackerspace which may be able to assist with tools, equipment, and techniques. My local library will loan the tools, yours might too. All you really need to get started is an iron, solder, and something to cut and strip wires with. Like most other hobbies and professions, using good tools will make the job easier. Most guides on how to solder are written by people who do it a lot. If you’re getting really into it you should dig into the NASA Workmanship Standards. If you haven’t soldered before, there are lots of really good guides to getting started. Adafruit ships most of its modules without the pins soldered on. The first step is to solder the header pins onto the board. I recommend using a breadboard for most prototypes and temporary projects.
Adafruit BMP180 Temperature/Pressure/Altitude SensorĪrduino Software (with some extra libraries and examples, detailed below)įor Elasticsearch and Kibana, you can setup an instance on Elastic Cloud or you’ll need to share a network with your devices and use a local instance of both.Adafruit Feather HUZZAH or another ESP8266 dev board.Prebuilt modules from Adafruit make creating your own wireless weather station simple. For this project I chose a board from Adafruit.Įlasticsearch and Kibana provide a very tidy combination for storing and visualizing the sensor data coming out of my hardware. For about sixteen dollars, you can get a battery-powered Arduino and node/lua-compatible development board. For only a couple bucks, you can add WiFi to any hobby hardware project. It has become a very popular device because of its price and capabilities. Folks have built compatibility layers for Node.js, Python, and Arduino with it. It’s a microcontroller with WiFi capabilities that can be used by itself or with most other platforms. I choose the ESP8266 more and more often lately.
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