I have a leaf blower, 2400W, 220V (abt.11A) with a speed control.
The speed control circuit is based on a TRIAC BTA12 600B, a diode, a capacitor, a 100K resistor and a potentiometer.
It's a 490K poteniometer with a 390K resistor between the legs, I measure it to 220K
Does anybody have a good idea for how to control this circuit with an arduino?
My "safe" solution is to have a servo turn the pot back and forth, but I would like a better, less mechanical solution.
Would it be possible to use a photo resistor in stead of the pot, and an LED to control that?
I assume the 220V is running through the pot, so are there photo resistors that can take that?
I appreciate any suggestions on this
thanks in advance