A few years ago, I had a project to integrate the control of a wood pellet stove into my local home automation infrastructure, without using proprietary, unstable and expensive closed-source modules.

So I started by analysing the data transmitted on the stove's serial port to identify the relevant addresses and commands (stove status, temperature, etc.) before creating the simplest possible circuit, taking into account the constraints, and a code base for ESP8266 to control the stove in MQTT: https://github.com/philibertc/micronova_controller

After creating a PCB and making it available as a kit on the Tindie makers platform, a community developed, with proposals for other compatible software solutions.

Recently, PCBWay contacted me about a partnership after noticing this project. They are providing me with beautiful PCBs in exchange for visibility.

If you have PCBs to make and want to get prototypes quickly and easily, don't hesitate to check out https://www.pcbway.com/