wight catchup

[Flintrock]

@thefreeman

@Flintrock

Actually, writing this all now, I do have to say, I wonder how well a tantalum cap would do for OTC... It would be a little funny if in the end the thing that made OTSM work would actually just make OTC work anyway. Still OTSM is far less finicky, not bleeder dependent, no calibration, etc, once you do setup the software details, so personally I'd still prefer it. But actually a tantalum OTC might do pretty ok.

How about X8L capacitors ? “Like this one for example”:KEMET K-SIM 3.0 5% initial tolerance, about 1% between 4 and 3V, ~1.5% between 0 and 60°C Would it even need calibrating ?

Probably. As Ace reminds me, even parasitic drain of the MCU impacts it, and I'm now recalling this maybe even produces some of the temp dependence. Been awhile, but the R in that RC of OTC is I think entirely uncontrolled? OTC isn't in my circuit diagrams explicitly, but that's how I remember it. He's probably got it correct, better, but still not great. I didn't actually use many OTCs personally though. I had maybe two lights with it, so not a lot of data points.