ESP32-P4 Revision Confusion: Same SKU, Different Chip
Espressif’s ESP32-P4 has a new hardware revision that isn’t clearly identifiable by SKU: a pin changes from NC to a power rail, a few extra passives are needed, and firmware must be compiled for each revision. Some wholesalers sell both revisions under the same SKU, leading to boards being built with the wrong chip and firmware, so verify the exact revision and use the correct firmware for your design.
