Jan-Erik Soderholm wrote:
> Is the trickle charger run from the same solarpanel ?
> And does it charge a normal 12V led battery ?

If the goal is to charge a standard lead-acid battery, then you could leave
the PIC permanently powered from the battery via a low quiescent current
LDO.  The PIC only needs to wake up every minute or so for a few uS to see
if there is enough panel voltage to bother running the power supply.

On the other hand, the panel current will be limited to some maximum amount.
If that's an acceptable long term charge current for the battery, then just
connect the panel to the battery with a diode.  No PIC or any smarts needed.


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