While the Atmega328 has enough processing power for many applications, sometimes you need a bit more. While trying to drive OLED displays, and run various other time sensitive tasks, you can come into performance issues. A faster chip, that is also supported quite well by the open source community is the STM32 family. There is

A few years ago, I was spending a considerable amount of time away from my apartment. Some of this time arose during the winter months, and I found myself wanting to reduce the heating costs of the apartment, and therefor the temperature while I was away. Because the unit is adjacent to a few others,