I bought my first Arduino board a couple of years ago. It didn't take long before I wanted to have some kind of network capability for my board so I bought some ESP8266 01 WiFi modules afterwards. Then I learned that ESP8266s are actually powerful enough to run simple codes. I have an obsession with overhead in my personal projects so I realized that I did not need the Arduino anymore and could ditch it.

One of the things I really wanted to make was a small enough board with sensors for temperature, humidity, and CO2 on it which can send data over WiFi. The idea is to build several of these and put them in each room.

The boards need to be:

1. Small - low profile: I don't want to have an eyesore in every room.

2. Low power: Under 1W on average at the very least, since I want to have a bunch on them.

3. Powered over sockets: I don't want to change batteries.

After delaying this idea for years, I finally got to finishing it and I want to write about the problems that I had and mistakes I made along the way. Hopefully, it will help someone who wants to make something similar.

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It was about time.

I created this website back in 2017 when I was fresh out of university. I published a few posts, but most of them were too academical, badly written, and not very interesting to be honest.

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