| This project doesn’t use a microcontroller, nor even the slightest specialized integrated circuit (IC). In spite of this, it will look after...
All items tagged with light and Battery (5)
| Elektor September 2007 comes with a board containing an LED booster circuit which you can try out for yourself. Although tiny, the board con...
| The circuit of the running light comprises two integrated circuits (ICs), a resistor, a capacitor and seven light-emitting diodes (LEDs)...
| The ignition warning light in a car indicates whether the battery is being charged or not (and indeed whether it is connected properl...
| protects your car battery Who has not at one time or another forgotten to switch off his car"s lights on a murky morning? That is not much o...