Fan POV question

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i have 2 ceiling fans in house never used (i live in north of england, it's seldom warm) i'd turn pov.

now, i've had think code , hardware , i'm pretty sure can except measuring fan speed.  i'd able measure fan speed @ startup (so it'll work on other fans or if speed changed) don't know best/cheapest way this.  any suggestions?

single magnet , hall effect switch.


Arduino Forum > Forum 2005-2010 (read only) > Software > Syntax & Programs > Fan POV question


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