Float/water level sensor - which PIN can I use to read On/Off?

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hello,

i have sensor:



and i'd use arduino control water pump.

i have relay arduino.

do connect 1 cable 5v , other end analogue pin?

how can read whether sensor passing 5v through?

thanks in advance.

it simple switch, yes?

when level gets point, circuit opens or closes?  hint: can use multimeter check that.

just check see if open or closed.




Arduino Forum > Using Arduino > Project Guidance > Float/water level sensor - which PIN can I use to read On/Off?


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