| With the compliments of the Elektor Editorial and Labs teams, here is a 'fresh' article presented free of charge to all Elektor e-zine subsc...
All items tagged with Switch and Free (10)
| A proportional radio control is ideal for controlling the speed and direction of model cars, planes or boats. Unfortunately, there are often...
| This article describes the electronics, the BL600 program and the Android program; the last being an Android smartphone application with whi...
| Portable radios, CD-players and cassette recorders that can also be operated from mains power often do not have a mains power switch, but in...
| This article describes a lights switch which is operated by moving your hand in front of it. This is achieved by detecting infrared lig...
| The popularity of halogen light is still increasing, and rightly so because of some distinct advantages: the colour temperature is agreeab...
| Any push-button switch can be used as a bounce-free, change-over switch with the aid of two D-type bistables contained in a 74HCT74 and...
| Switches with change-over contacts with traditional debouncing circuits are not always usable or economical. Keyboard switches, for inst...
| A switch that keeps on giving pulses as lang as it pressed is often required. The circuit here uses the well-known Type 555 for this purp...
| electronic aerial switch Many radio- and TV-amateurs have often wished they had a simple means of switching from one aerial to another. The...