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4028 fan PWM control shutdown MCU
Hi! Yesterday i connected my 4028 fan to control it with PWM signal. I used this tutorial (https://os.ratrig.com/docs/guides/4028/) and because the fan was still working on 0% i had to connect GND from step-down converter to heater 1 - output on mainboard and add enable_pin to the fan section in printer config. The problem is that i keep getting errors in random moments while printing but i realised that it happens on layers when the part cooling fan has to be turned on so I suppose that it causes problems with mcu connection. For example i made one print without print cooling and it went with no issues. The same print with cooling ends up with an error.
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