*generic title* (LFO Help)

[Transistor-Transistor]

Okay, Generic title aside, I need some help/advice/schematics for a triangle LFO to drive an LED. I assumed that there would be an old thread asking this same question (there was but the schematics weren't available anymore so It couldn't help me). I want a super slow LFO that goes from like 0.05hz to maybe 0.5hz that drives an LED. Now heres the weird part. Well I'm making an auto fuzz wah with a switch that makes the speed knob a fixed freq knob so it can be an autowah or fixed wah. I have the fuzz wah designed and the fixed freq knob is b100k acting like a variable resistor to ground and I want the switch between the two modes to be a dpdt.
Now I know what you're thinking. "Just look it up, I'm sure its on the internet somewhere". I've been looking for like at least 4 hours throughout today and I can't find any suitable designs. I found a promising PSO from the phozer but I didn't like the sine shape and it didn't reliably go slow enough.I think an op amp LFO solution is the way to go.
If you guys have any schematics or advice I'd love to hear it!
(I'm looking at you Matthew)

[box]

Okay, Generic title aside, I need some help/advice/schematics for a triangle LFO to drive an LED.

Hi,
Please check from this schematic.
Rgds,
box

[antonis]

https://www.diystompboxes.com/smfforum/index.php?topic=55333.0

https://www.diystompboxes.com/smfforum/index.php?topic=124115.0

https://modwiggler.com/forum/viewtopic.php?t=83703

[Matthew Sanford]

Here's where I went, based on the Falstad example. This one is a 0-5 volt using MCP6002 for its rail to rail ways. For speed adjustment you might want a resistor in series with the pot and different value pot, work the RC time constant