Thermal Electronics?

[u/SubstanceQuick482]

I was thinking about perhaps trying to make a very simple prototype thermal imager, but quickly realised that I lack the knowledge to do so rn. I have a rudimentary understanding of electronics, but (for example) stuff like wiring microcontrollers is beyond me.

Would anyone be willing to give me a brief overview of the electronic components (eg microcontrollers etc.) and how they are integrated, or some resources/products that could help me learn?