@sun yeah, kicad and sent off to https://oshpark.com/ for fab. First time trying their After Dark boards (clear solder mask with black substrate), expected more black because I thought the mask was black. Just been testing things after getting it populated, this is revision 2, first one the USB-C connection was fubar so I swapped to something I could solder
@sun It can be fun! imo the thought process is similar to coding, except with electronics there seems to be way more strange dark alleys to explore and get rekt in, and it can take a lot longer to iterate
@sun for example that board is mostly just reading the datasheets copying the application circuit for each part. The only sections I felt like I did any "EE" are where I used mosfets, 1 to make the circuit draw from the USB vbus when plugged in so the battery can charge, and 2nd one for driving the speaker, everything else was basically following lego directions