| More and more ISPs, are offering subscribers an extra phone line using Voice over IP (VoIP) on top of their Internet access.The project desc...
| More and more ISPs, are offering subscribers an extra phone line using Voice over IP (VoIP) on top of their Internet access.The project desc...
| The circuit described here is designed for use by laptop or notebook computers. It will automatically switch off all mains powered periphera...
| Control by sound may be very useful, not just on a robot but also for a bit of home automation, for example a sound-activated light respondi...
| This switch-mode power supply is built around a 555 timer IC. It provides a maximum output voltage of 40 V with a 12-V input voltage. The vo...
| Een schakeling die ontbrekende pulsen detecteert is in de wereld van de robots onmisbaar. Als aan de schakeling van figuur 1 regelmatig puls...
| The PTN78060 is a series of high-efficiency, buck-boost, integrated switching regulators (ISR) from good old Texas Instruments (TI). The cas...
| What do you do with a large pile of electromechanical counters from the scrap parts bin? Exactly the same as with other display devices from...
| A circuit that senses the resistance of the skin and converts it into a useful switching signal. The touch switch contacts can be made from...
| A typical application circuit is shown in this article, where one Pixie Switcher unit has been configured to have two inputs and the other t...
| There are many situations where two or more pieces of equipment are used together and to avoid having to switch each item on separately or r...