cjlyth / monenv Goto Github PK

This project was started to monitor the environment around my printer. My primary goal is to determine how well my ventilation performs.

The hardware is pretty simple, using plug-and-play components from sparkfun.

I chose the OpenLog Artemis because it has several interesting features.

• LIPO battery support including a charge circuit
• USB-C power input to stream logs and charge/operate the setup
• RTC to track time
• Qwiic support with a great catalog of sensors

I like the offline capability because I also plan to use this in other projects if it works out well. For example, I would like to add this to my Ural for long road trips to build a map of air quality, elevation, speed ets.

I chose this environment sensor as a starting point because it seemed to have the most robust capabilities. At this point I am not sure which sensors will work best for the VOCs my printer puts out. I also plan to add sound and other sensors but this board provides my core needs (humidity, temperature, TVOCs), and some I dont plan to use.

I am using a raspberry pi 4 as the controller for this project because I have one on-hand and it is an easy platform for the rest of my project.

Since I am using AWS Greengrass, I followed the setup guide in the docs.

I hacked together a basic case to protect everything as I develop this project. This led me to an annoying design flaw with the OpenLog Artemis.

I finally have some results. I will have to update the project docs to reflect how I got to these results. For now, feel free to check it out!