| Sweden is increasingly recovering biomethane from biowaste. Initially undertaken only by water utilities and sewage treatment plants, biomet...
More about Switch (454)
| A time switch lets you save a considerable amount of energy by switching off equipment when it is not being used. However, time clocks from...
| Anyone experimenting or developing USB ported peripheral hardware soon becomes irritated by the need to disconnect and connect the plug in o...
| This project was originally designed for lighting up an illuminated sign for a wine-grower. The sign was originally controlled by a simple t...
| The circuit described here was designed as an addition to a remotely-controlled garage door opener. The problem was that a brief burst of in...
| This automatic lighting switch controls the background light on and off along with the TV set. The entire circuit is fitted in series with t...
| Many different types of wireless switch modules with a relay for switching AC power loads are commercially available. However, some applicat...
| The LM335 is a low-cost temperature sensor with a range of –40 +100 degrees celcius. In this circuit, it is used to show whether the outside...
| The Universal Remote Switch Box is a universal remote control receiver, fitted with 16 open-collector outputs. Each of these can be configur...
| As early as next year, the whole of Sweden will be equipped with intelligent meters. A revolutionary change in the way the power market work...