volt sensor bord to 300v ac

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hallo

i make simple guide ring turbine, turns on relay when when voltage reached.

can buy simple printer can measure 320v ac , convatere 0-5v?
a bit b25 voltage sensor board (but can take 25v)

mvh bruno

how accurate need reading? trigger point need variable?

you put high voltage onto transformer bring voltage down max of 5vac, rectify feed voltage divider limit arduino input voltage.

weedpharma


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