Indoor room monitoring to the cloud

BME280

Lithium Ion Polymer Battery - 3.7v 2500mAh

MQTT

Grafana

Arduino MKR WiFi 1010

Jumper wires (generic)

Raspberry Pi 4 Model B

I love measuring things. I really want to monitor environmental conditions and log them. My long term goal is to build a weather station outside that sends data via WIFI, so I became really interested in building all of the parts of this. While figuring out how to weatherproof everything, I have really enjoyed watching the environmental conditions of a room indoors. I have been writing about the steps I needed to do this at my blog, <a href="https://alexkend.com/category/arduino-weather-station/">alexkend.com</a>. The code required to run all of this is being recorded in my <a href="https://github.com/akkendrick/arduinoWeather">Github</a>. I essentially built an indoor (for now) weather monitor.I used an <a href="https://store-usa.arduino.cc/products/arduino-mkr-wifi-1010">Arduino MKR WIFI 1010</a> to control a sensor and then send data to a internet of things dashboard. I wanted two things: a long term log of data, and a cool way to display it. Ultimately I decided on uploading data to Grafana cloud while keeping a local copy of the data in SQLite via Python on a Raspberry Pi I have. This is optional! I just want to keep a local log. To monitor indoor conditions, I am using the <a href="https://www.adafruit.com/product/2652">BME280</a>, the sensor is shown below. It measures temperature, barometric pressure and humidity. It works great, essentially plug and play with no soldering required.<figure><img src=https://projects.arduinocontent.cc/c9991a0c-54ea-4b88-a172-829989c05744.jpg /><figcaption>The BME280 sensor for measuring environmental conditions</figcaption></figure>This sensor is then connected to the correct pins of the Arduino MKR. The BME280 can run off of 3-5V inputs, so this sensor works fine with 3.3V pins.<figure><img src=https://projects.arduinocontent.cc/f355f6c4-e6b8-44a1-8d3d-068d906a3368.jpg /><figcaption>The connected BME280 with the Arduino MKR</figcaption></figure>Now that I'm collecting data with the BME280, I send that data via MQTT to a Raspberry Pi that then sends the data via a Prometheus client to my Grafana Cloud dashboard. Now I can monitor my room's environmental conditions from anywhere.<figure><img src=https://projects.arduinocontent.cc/a62514bc-466a-4318-b78a-ba1709a27f47.PNG /><figcaption>My Grafana dashboard plotting the logged data</figcaption></figure>It is also optional, but I am using a lithium ion battery to power the Arduino so I can collect data for a long time without needing to constantly provide power to the Arduino.

BME280 and Arduino MKR WIFI 1010

Weather Station Code

Indoor room monitoring to the cloud

Use a sensor to monitor room conditions and display it in the cloud.