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Re: is it pssible to control the speed of the ac fan through AT89s52
thanks for replying..
as u said that i havnt defined the external interrupt routine but i did it..see in main...its MOV IE,#84H... which is enabling interrupt on INT1 i.e. P3.2.
plz correct if i m wrong.
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Re: is it pssible to control the speed of the ac fan through AT89s52
thanks for replying...
i did that but it doesnt work out. i have taken the zero crossing at INT1. i am testing it on a bulb. now the intensity of the bulb should change but wat happns is that
the bulb blinks. here is my code...
i am trying to control the speed of a ceiling fan with at89s52 on pin p0.0 but not able to do it.
i am writing the code in assembly. please tell me how it can be done.
i tried it but instead of control on speed, the fan gives zerks. plz help......
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