More about light (490)

1-12-2007 | LEDs are used more and more in motor vehicles, replacing the standard incandescent lamps because they are more energy efficient and have a m...

1-10-2007 | The boom in camera phones means you can now pick up tiny snap-on flash guns for a couple of pounds if you know where to look. And if you loo...

1-09-2007 | Elektor September 2007 comes with a board containing an LED booster circuit which you can try out for yourself. Although tiny, the board con...

1-07-2007 | Quite simply, it’s a light-seeking robot — a sort of moth (on wheels) if you prefer, since, just like its counterpart in the living world, i...

1-07-2007 | Many robotic applications require a sensor to measure light levels. The conventional approach as shown in Figure 1 uses an A/D converter to...

1-04-2007 | Sure, the E-Blocks LED Chaser from the February 2007 issue is a bit elementary. This month we’re going to try and expand it to a larger numb...

1-02-2007 | As many of you have already discovered, E-Blocks, along with programming tool Flowcode, open up enormous possibilities, though you still hav...

1-01-2007 | This ingenious creation uses just eight blue LEDs to produce a scrolling text display with 360-degree all-round visibility. A more economica...

1-10-2006 | An LC display can be used as a readout for all kinds of useful information without using the PC monitor for that. This is not unusual anymor...

1-09-2006 | The free 13.56MHz RFID smart card given away with this issue is designed around the Mifare Ultralight IC (MF0 IC 01), the smallest member of...