Inerfacing switch & led with any controller
122522
Interfacing switch and LED
120233
Adding a new switch with an independent light in an existing circuit
37452
Is it possible to convert a switched light into an unswitched outlet?
24335
How can I efficiently drive an LED?
57616
How do I build a switch to automatically control my shop-vac?
95587
How can I safely prototype a mains power circuit?
30292
How do I calculate the resistor value for a simple LED circuit?
134203
How do I wire two lights with a switch?
56176
Make a momentary switch control a toggle
158797
accounting for LED resistance
108482
Switch power supply/battery
31944
How do I model an LED with SPICE?
23815
switch between battery and usb power no microcontroller circuit
145733
How do I wire a two tube ballast to a single tube fixture?
46032
Add combo (switch and outlet) with only two wires out of wall for the current light)
16875
Getting code onto a microcontroller
24137
Light Activated Switch