Closed loop universal motor control system using PID algorithm.
Project tutorial by Saulius Bandzevičius
FM radio built using Arduino, RDA5807M, Tiny RTC, PAM8403 class D amplifier modules, and TR028 touch panel.
Improved version of the soldering iron controller for Hakko 907 iron.
To simplify building the controller, LCD screen is implemented.
Project tutorial by Alexander
A metering instrument to measure capacitance, ESR value and frequency.
Project tutorial by FluxP
When drawing on web, the drawing will be sent to XY plotter to re-draw it on bigger screen.
Project tutorial by IoT_lover
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).
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.
Do you still use the Serial.print function? It also delays the microcontroller running. Try do not use it.
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