@Bollux wrote:
Hi guys,
I’m trying to make my doorbell smart with @frenck s tutorial:
I have done everything the tutorial says, and everything works, except if i turn on the power switch on the transformer, the chime is making a zooming noise. When i push the doorbell button, it does ring the chime.
Could the problem be related to the relay board, or did i wired it wrong?
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