Just finalized the overall case and pcb design (no more 90 degree bends). I might add chamfers and fillets to the case later on but for now I will focus on the firmware (which doesn’t look too complicated) The pins inside the case are to secure the pcb and the screws will be threaded directly into the plastic as I do not have the experience to install heat sets. The indentations are there to allow the pcb to sit flat inside because the solder headers need to be accounted for (I’m doing about 2-2.5mm).