Public projects 2

Arduino-Based Universal AC Motor Speed Controller

Project tutorial by Saulius Bandzevičius

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  • 165 comments
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Arduino-Based Shower Cabin FM Radio

Project tutorial by Saulius Bandzevičius

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Soldering Iron Controller for Hakko 907 v.2

Project tutorial by Alexander

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  • 178 comments
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Arduino CAP-ESR-FREQ Meter

Project tutorial by FluxP

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Arduino - Drawing via Web Using Step Motor Controller

Project tutorial by IoT_lover

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  • 7 comments
  • 80 respects

  • Arduino-Based Universal AC Motor Speed Controller 3 days ago

    Diego, I'm happy that you found the problem. The rated voltage of c3 should be at least 400V. I used 630V (just had in my stock).

  • Arduino-Based Universal AC Motor Speed Controller 6 days ago

    Diego, I studied about train pulses. They use this this method to ensure stable triac opening. Once the triac is opened it will close during zero crossing. I didn't implemented this because pulse width changing was more simple for me. And it works.
    Try to test your motor without dimmer. These motors can run using DC current. Somewhere I saw that 12V is enough. So a car battery is a good choice.
    Regarding snubber circuit. I had only triac which required a snubber circuit so I did it. I had no possibikity to test snubberless triac. But I think, that your problem isn't the snubber circuit because you are using snubberless triac.
    I can't test yor sketch because my made controller is installed on the lathe and is far away from me. To test I have to make a new one.

  • Arduino-Based Universal AC Motor Speed Controller 8 days ago

    Do you still use the Serial.print function? It also delays the microcontroller running. Try do not use it.

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