Relay not switching on at power-up with boot-preset

[DedeHai]

What happened?

At bootup, the relay pin is not switched on (or not set as an output) if "power on at boot" is not set even if the boot-up preset uses "on":true
After switching off the LEDs and switching them back on, it works as intended.
This is confusing as the UI shows everything working and the LEDs being on, even data is sent to the LEDs but they are not powered as the relay stays off.

To Reproduce Bug

disable "power on at boot" in settings.
set relay pin for example to GPIO25, power on the MCU -> relay does not switch on.

Expected Behavior

when the UI shows the LEDs are on and data is sent, the relay should also be on.

Install Method

Self-Compiled

What version of WLED?

0.16

Which microcontroller/board are you seeing the problem on?

Other

Relevant log/trace output

C3 and ESP32 classic tested.

Anything else?

maybe a comment should be added to the settings that "Turn LEDs on after power up/reset" will be overridden if the boot-preset has "on" set to true.

Code of Conduct

• I agree to follow this project's Code of Conduct

[blazoncek]

FYI all but a few of my devices are equipped with relay and have "turn on at boot" off and they correctly switch relay either by pressing the power button or by starting a preset.

If yours are not working you must have made changes in 0.16 to break things.

And BTW boot preset always takes precedence over "turn on at boot" setting. It has always been so.
However if you have a boot preset without "on":true or "on":false that toggle is respected. This leaves some creative freedom when creating boot presets.

[DedeHai]

Some users reported this and in my hardware tests this bug led to some head-scratching so I checked and the behaviour is indeed different to what it was. I also saw some cases where it would switch but a bit erratic.