While I was waiting on the ordered PCBs I did some development on the screen I had chosen. I found this floating around on aliexpress and it looked like a perfect fit for my camera. It was small and it had the same display controller (and resolution) as the previous temperature camera but it had a touchscreen. It looks like it is from some kind of smart watch.

I found it randomly scrolling but I you search for "ST7735 Drive IC IT7259 Touch" you can find it there. Before I started this project I already ordered some with no board and one with a PCB they made. Seller was pretty helpfull and gave me the schematic they made and I used that in the PCB design.

So I got to work and programmed something a ATSAM4S2BB-UUR dev board I made before. On the dev board I didnt connect the MLX90642 yet as it was still in the mail.

And a test of the touch screen