computer Christmas lights

[MrDEB]

years ago I assembled a Compurterized Christmas light display but since sold the entire setup.
I recall the SSR or triac boards used an opti-isolator, couple resistors but instead of using a computer, I want to just use a PIC to drive the opti_isolator. Just started looking for leftover plans and parts but figure would ask first.

 

[MrDEB]

yes

 

[Tony Stewart]

That is consistent with my rule of thumb to chose Vgs / Vgs(th)[max] = 2 to 2.5 minimum