Hello everyone!
I have a parking meter project that will require 40 to 60 5mm LEDs that need to be battery powered for 30 days, but only at night.
LEDs can be any color but red.
I am thinking a Joule Thief circuit with a darkness sensor (photo diode)?
The challenge is I only have two 1"x1.5"x4" space for the battery/batteries.
Yes, this would be a paying project.
I have a parking meter project that will require 40 to 60 5mm LEDs that need to be battery powered for 30 days, but only at night.
LEDs can be any color but red.
I am thinking a Joule Thief circuit with a darkness sensor (photo diode)?
The challenge is I only have two 1"x1.5"x4" space for the battery/batteries.
Yes, this would be a paying project.