| In this project an AVR microcontroller type ATtiny2313 acts as a variable frequency divider, giving a sequence of very stable reference freq...
More about Time (720)
| This circuit detects when a window is open (it can also be used with a door), indicates that the window is open by means of a red LED or a b...
| This timer circuit is designed to switch on a 12 V load in a solar-powered installation for a preset period at the press of a button. When t...
| Low cost multimeters do not include a milliohm measurement range and specialist equipment is expensive. The simple circuit described here al...
| The economic downturn is sharpening the focus of clean energy investment, says Vivienne Cox, the head of BP’s Alternative Energy business. C...
| Inspired by a binary clock he saw at a mathematics museum the author of this design went one step further and came up with a more mathematic...
| Longwinded discussions are costing commerce millions. Our meeting cost timer reveals the true cost of ‘free speech’ at business gatherings....
| Many practical tasks can only be solved by using accurate timing. The ATmega controllers are well equipped in this respect; the Mega8 to Meg...
| Water is vital for humans, but too much of it has an undesirable effect, particularly when it turns up in the wrong places. This is what two...
| It was, more than anything else, the European Parliament who got Alan Riley, Professor at the City Law School in London, involved in Nord St...