#esp32-p4
ESP32-P4 + C6 Wi-Fi: When esp_wifi_set_ps() Does Nothing and Your First Packet Takes 1 Second
On the ESP32-P4-WIFI6 the radio lives on a separate C6 chip over SDIO, and the P4 cannot switch off its power saving. Here is how to get 10 ms UDP latency anyway.
ESP32-P4 GPIOs Stuck at 1.2 V: The Internal LDO Power Domain Trap
Four unrelated-looking motor and encoder bugs on an ESP32-P4 board turned out to be one missing line: GPIO45-54 sit on a power domain fed by the chip internal LDO, and nobody had turned it on.