Switching circuits includes a variety of circuits, some activated by light, water or voltage and others that activate on particular
sensor limits. All circuits are listed alphabetically on the Circuit Index
page and in date order on the update page. All contributors are listed
on the credits page.
If you have problems try my help page first. Most circuits on this site use
SI Notation. Due to large volumes of email, I regret that I can only
answer questions about circuits on my site.
For help or to contribute please email me