The Jimmerness - Adventures in Home Automation

I picked up some DHT22 and Wemos D-1 Minis for a bathroom-vent project - if it gets too humid from the shower, turn on the fans. When the humidity drops, turn off the fans. This is the story on how they were actually used. A kitten-based project. Frida developed dry coughs this past week. Environmentally, nothing had changed. Food was normal, litter box normal, no chaos. We took her to the vet - no lungworm, no asthma, no cancer in the xrays. Maybe the house is just too dry? Step One: Find the components DHT-22 Sensors - I bought some "HiLetgo 2pcs DHT22/AM2302 Digital Temperature And Humidity Sensor Module" from Amazon. These have three connections: power, sensor, and ground. Some other DHT-22's have 4...one apparently is just not connected. The AM2302's have an advantage later as we will discover, but will an extra line of code. Came with appropriate female-female wires. Wemos D-1 Mini: I found 5 for $16 on Amazon. Not the actual Wemos brand, but they worked. They c...

[Nov. 3, 2021 edit: if you like Celsius for your printer feed, but use Imperial as your base measurement on HA, something broke the below process. I wrote a new post , adding some conversion templates to restore this feature. We now return you to the article...] So my title is a little misleading. If you want the dark-grey theme, and the little icons in the third set of rows...you need HACS. But otherwise it's just stock-HA white, which is totally fine.  Reading Home Assistant forums, browsing youtube videos - you hear the glory of HACS (Home Assistant Community Store). Home Assistant is free & open-source, done by volunteers, same with HACS. HACS comes with a disclaimer: it's risky. Don't use it unless you know a bit about Home Assistant. And then there's some common-sense directions on how to install it. I pulled myself in, because I wanted themes and Font Awesome icons. I really don't want to tackle adding HACS or fontawesome as a tutorial - HACS was easy e...