Help with a sun jar idea?

 So recently I saw the 'ible on here about how to make a sun jar, which I think is really awesome, and I want to make one now... The question I have though, is if anybody knows how to make a circuit, without programming that will make the light raise and lower in intensity, so basically, it has a very slow pulsate but it never turns off and doesn't go super dark either... I have been trying to address this problem myself for some time, but haven't come up with a clever solution yet.


jeff-o7 years ago
This link to Solarbotics Documentation contains a few schematics for solar-powered devices that may be helpful.  Perhaps the HexPummer schematic would suit your needs.
rickharris7 years ago
You need to look at the combination of an LDR and an op amp comparator.

Before there was digital many things were done with analogue circuits.