ESP32-s3 Wroom sometimes doesn't start up

[vritzka]

Hi,

I built a hardware product that every now and then doesn't boot.

People then powercycle it and eventually it starts.

When checked the logs of the ESP32-S3 during boot, it stopps right after this message:

cpu_start: Multicore app

So far I deactivated 'Bootloader log verbosity' to 'no output'.

Any ideas what else I could try to fix it?

[aliarifat794]

The power supply must provide a stable voltage (typically 3.3V for ESP32-S3) without significant dips or noise during boot. Check if the power supply can handle peak current requirements (ESP32 can draw spikes up to 500mA during Wi-Fi operation). Add decoupling capacitors (e.g., 10µF and 0.1µF) near the ESP32-S3 power pins to smooth out voltage fluctuations. If you need the datasheet and features in one place, you can check here: https://www.theengineeringprojects.com/ ... tions.html

[vritzka]

Will do, thanks