ESP-32 based environmental data collection & monitoring. I utilized a DHT22 Temperature and Humidity sensor to collect measurements of temperature and humidity, and used a Keyestudio KS0196 PM2.5 sensor based on the Sharp GP2Y1014AU sensor to collect PM2.5 particle data. I collected data for a total of 35 hours, as I figured, why not do more than 24. This meant a larger data section and more to analyze. I found that while both temperature and humidity varied wildly throughout the day, due to influences such as opening the doors and windows, or running a swamp cooler, particle count stayed relatively stable, save for a few outlying points. As for the hardware, I chose to use a Noritake CU24025ECPB-U1J vacuum fluorescent display to add to my project, and used its capabilities to display the data collected in real time. I had originally intended to use a Noritake GU140X16G-7002 matrix vacuum fluorescent display, but the manufacturers library was not compatible with the ESP32 due to relying on features present on only AVR microcontrollers. I decided against attempting to rewrite the library, as I wasn't really sure where to start. I used a DHT22 sensor as I was familiar with how they worked & had used its predecessor before, so it was quite easy to get working. It also gave me a humidity readout, effectively 2 sensors in one. The KS0196 was just the cheapest PM2.5 sensor I could find at the time, no other reason as for why I chose it. It works fine for this purpose, and seems reasonably accurate.