Embedded & IoT
Bug Report
ESP32 reboots with Brownout detector was triggered as soon as Wi-Fi starts
Our greenhouse sensor boards boot-looped the moment WiFi.begin() ran, logging Brownout detector was triggered. The 3.3 V rail sagged under Wi-Fi transmit peaks from an undersized LDO and thin cable. How we measured it, fixed the power path and why disabling the detector is the wrong fix.