So the first thing I noticed when I started making the BOM was that the voltage converters I had used (since I needed to convert 7-12V - 3.3V & 5V) were way more expensive than they needed to be so I spent some time looking for alternatives and eventually settled on 2 that were much cheaper. I also replaced the through hole capacitators (since they were hard, if not impossible to find), with surface mount ones.
The unfortunate part of these changes was that I had already designed a case for the old design and even though they’re somewhat similar I decided to just design a whole new case which took even more time but eventually I got a case with a top and bottom part secured with M4 and M6 screws.
I was initially going to use JLCPCB’s PCBA service where they assemble the PCB for you (because I hadn’t soldered before and didn’t really want to try first with 0402s), but it ended up being way more expensive than just learning to solder and doing it myself! I went through LCSC to get all the parts I needed and made a BOM with all the part links. I also created a github with all the files which you can find here: https://github.com/A-Ritvik/Mission-Board/tree/main.
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