Electronics > Projects, Designs, and Technical Stuff
Christmas light circuit reverse engineer
(1/1)
pyrohamish:
I'm trying to reverse engineer a set of battery / solar Christmas lights so I can program and run the lights with a ATTINY or similar.

Photo of board and the schematic I've worked out attached. I think I know mostly how it works, but, what is the purpose of the voltage divider to NPN transistor?
exrbc:
switch on when solar voltage drops, turns on when dark.
Navigation
Message Index
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod