I documented the final 12V → 3.3V buck power block I ended up using (schematic, PCB layout, and BOM) here, in case it helps others avoid the same kind of power-related PCB re-spins:
https://matlukis.gumroad.com/l/qxsxn
Alif Firdaus
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Why My ESP32 Kept Failing on 12V Power (And Why an LDO Was the Wrong Choice)
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