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  • PatoOta commented on diy_bloke's instructable Arduino controlled light dimmer7 months ago
    Arduino controlled light dimmer

    I sure will change the resistor to 2watts. But I do not understand why need it.If it is only a led pulling some little amps. Obviously I know very very little of electronics.Thanks in advance.

    I sure will change the resistor to 2watts. But I do not understand why need it.If it is only a led pulling some little amps. Obviously I know very very little of electronics.Thanks in advance.

    Yes, I am taking about the led inside de 4n25.Great explanation!Thanks again

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  • PatoOta commented on diy_bloke's instructable Arduino controlled light dimmer7 months ago
    Arduino controlled light dimmer

    It is mi first Instructable proyect that I made!!! I am very happy!I should changed some resistors because the 4n25 does not fire. Instead of using two resistors of 30Kohms, I used two of 15Kohms. I suspect that the bridge rectifier has its own resistance.Thanks for all the info.Bye!PS: My home AC line is 220Volts 60HertzEste es mi primer proyecto que hago de Instructable!!! Estoy muy contento!Tuve que hacer unos cambios en las resistencias porque no se disparaba el 4n25. En lugar de usar dos resistencias de 30KOmhs, usé dos de 15KOmhs. Sospecho que el puente rectificador que usé tiene resistencia.Gracias por toda la información.Saludos!PD: En mi casa la electricidad es de 220Volts a 60 Hertz

    Could be that. Thatnks for your fast response.

    It is mi first Instructable proyect that I made!!! I am very happy!I should changed some resistors because the 4n25 does not fire. Instead of using two resistors of 30Kohms, I used two of 15Kohms. I suspect that the bridge rectifier has its own resistance.Thanks for all the info.Bye!PS: My home AC line is 220Volts 60Hertz

    View Instructable »
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