Hi everyone, I am having a simple siren automation on ESP32 Wroom. I want to run the siren for a minute or a little longer. Five seconds after starting the script ESP32 reboots. The logs don’t have much useful information for debugging. output: - platform: ledc pin: 13 id: buzzer switch…

[image] anon11644107: My guess is that it draws so much current that it causes your power supply voltage to sag Yeah - what Tom said. Switching LEDC at the rates you have done works fine - I tested it using yaml rather that lambda but the result is the exact same (without the crash): output…

What buzzer/siren and how is it connected? My guess is that it draws so much current that it causes your power supply voltage to sag, resetting the ESP. But without knowing specifics, this is only a guess.

I don’t understand the lower level stuff but I believe you have to be careful using delays in lambdas too. So worth trying zoogara’s approach. [image] Lambda Function for Delay? ESPHome The delay in yaml notatin does not actually stop the execution there. You can not us…

[image] Mahko_Mahko: you have to be careful using delays in lambdas You may be right - delays in lambda are blocking, the yaml delay: isn’t. Maybe that’s causing some grief?

Thanks for your reply. It works! I was also suspecting the delays were causing troubles. Was not sure about script execution implementation. Was curious whether scripts called synchronously or async.

ESPHome automation causing rebooting of ESP32

ESPHome

Mahko_Mahko (Mahko Mahko) February 1, 2024, 6:40am 4

I don’t understand the lower level stuff but I believe you have to be careful using delays in lambdas too.

So worth trying zoogara’s approach.