Practical uses of Digital LFO's ?

[WhenBoredomPeaks]

Hi guys!

This is my first post on the forums, so i wanna say Hi to all.

My question:

I have a programmable microcontroller which can put out 0V-5V voltages.
Is there any nice circuit where i can use it?

I know that there are numerous uses of LFO-s with vactrols, optocoulers, and other voltage controlled, resistance changing "things" but i can't buy any of those parts.
Well actually i saw optocouplers here but they were in DIP8 format and i don't think that they are useful. Correct me if i am wrong.

I know that i could build one from a LED and a LDR but i have just ordered assloads of parts and they contain no LDR's.

So is there any circuit where you can directly onnect your LFO with good results?

[alanlan]

You could modulate a JFET with a scaled version of your 0-5V signal e.g. to do a basic tremolo modulation type of effect.  Just one example.

[soggybag]

I think you could definitely use a microcontroller on an 8 pin DIP in a stompbox. LFO would probably be the most useful place for it. Attach the output to an LED/LDR combo for a super simple arrangement.