The white wire to the switch should be marked black to indicate that it is hot. (Ground wires are not shown.) If the line carrying power comes into the light box first, the circuit must still be ...

[Vadim] chose an ATtiny2313 to handle the RC-5 IR protocol and switch the light. The circuit still has a switch to manually control the lights, preserving the original functionality of the light ...

The module is powered buy a coin cell battery, making it ideal for older homes as well as new ones; older houses often lack neutral wiring, so bypassing the light switch circuit is a clever ...

The scientists are going to show us how electrical energy flows around an electrical circuit. Title: Circuit symbols This is what a battery looks like as a circuit symbol. Electricity can travel ...

To turn out the light we need to break the circuit. We can do this by putting in a switch. It doesn't matter where in the circuit you put the switch - the effect is the same. The bulb glows ...