All items tagged with Bicycle and circuit (4)

1-07-2010 | The author wanted a very cheap and simple alarm for some of his possessions, such as his electrically assisted bicycle. This alarm is based...

1-07-2010 | This is a design for a rear bicycle light that automatically switches on and off according to ambient lighting conditions. The red LEDs flas...

1-07-2010 | The LED bicycle light that we described in the July/August 2009 edition of Elektor has proved very popular. The author was particularly stru...

1-12-1993 | When a battery is charged by a solar panel during the day, it may discharge via that panel after sunset. This may, of course, be prevente...