I also tried this circuit (fan dimmer) which i found from the internet and interfaced the TRIAC with the PIC at its gate sectionhttp://www.microchip.com/forums/photo_view.aspx?file=0;421912
This circuit worked , however the POT over heated too quickly. I tried replacing it with a 5W 1kOhm resistor...but that too over heated.....i then tried a simple short circuit by a wire. Now this solved the over heating problem at this end....however now the TRIAC is over heating.Please Please help on how to minimize the excessive heating in the circuit?
Shrooms