[Ashwini Sinha]

I want to control AC light brightness using PWM and digital signals. What is the best way to do it

[bidrohini]

Once I used a TRIAC-based voltage dimmer with Raspberry Pi/Arduino to adjust the brightness of a traditional 220V light bulb. That particular dimmer was designed and sold by a local electronics online shop. Here is something similar: https://www.amazon.com/Light-Dimmer-Module-Arduino-Raspberry/dp/B06Y1DT1WP

[Anonymous]

Thanks For sharing!

[K.N. Antony]

What kind of AC bulb? Incandescent, CFL or LED type?
What is the power rating of the bulb?

[Author]

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