2Hz clock signal generator

Hello,

Please tell me how can i make binary sensor changing his state 2 times per second.

Can you explain what you are actually trying to do…? This seems like it might to be the start of an X-Y problem.

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I just want to create a helper that will give a signal at a certain frequency. Here specifically 2Hz.

Problem is that helpers are refreshing evry minute, and automation can be trrigered in evry second