Hiya, so i'm building an electromagnet lock that uses a MFRC522 and the accesscontrol sketch in the example library. I can get the relay (tongling JQC-3FF-S-Z) to click as many times as i want until i put 12v power through switch it'll only click a few times before not working. This is also causing …

Electromagnet Relay Help

TMFOH April 26, 2018, 2:28pm 4

Anyone have any ideas?

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