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Hello i am using ESP8266 to control my 220v AC ceiling fan.

I am able to do that easily with a 5v 10A relay module.

But i want to know is there any module to control the fan speed as well? i have checked many videos on YouTube but couldnt understand how can i do that. I just got one thing that it will require Pulse Width Modulation to control it.

Thank you!

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  • I just got one thing that it will require Pulse Width Modulation to control it huh? what? Commented Feb 25, 2019 at 11:31
  • to control Celling fan speed Commented Feb 25, 2019 at 12:21
  • no, pwm will not help you. the trick is to turn the relay on and off fast. the mechanical relay cant do it, so you need a SSR (solid state relay) Commented Feb 25, 2019 at 12:26
  • @Juraj Thank you for amazing suggestion. But can you share any example code? Or any library which can help with this? Commented Feb 25, 2019 at 16:44
  • Blink example ? Commented Feb 25, 2019 at 17:27

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