As technology comes to play an ever increasing role in our day-to-day lives, you should expect touchscreens to show up with increased frequency in the places we call home. We have seen touchscreen ...

The control system of an elevator consists of a low voltage circuit, that supplies the motor brake and the relay coils. In this link you can see a basic circuit, designed for educational purpose. At ...

YARMOUTH, Maine—It doesn't take a sophisticated access control system to keep people out of the building or allow them inside. Nor does it take a high-end system to provide useful data that can help a ...