More about Timer (144)

1-07-2011 | If you need to control something over a longer period than the standard 24 hours, you can use two timers with the second one plugged into th...

1-07-2011 | This jogging timer emits a brief tone using its piezo buzzer indicating how many o ten-minute periods have elapsed using a series of eight L...

1-11-2010 | The camera shutter operating system described here makes it possible to take photos at a predefined interval, or to trigger two cameras toge...

1-07-2010 | This circuit is a tester for flywheel-based ignition systems in small aeroplane engines. Basically the same ignition coils are also seen in...

1-07-2010 | This design came about when the author wanted better control of his 12 V solar-charged garden lighting installation. It is however a versati...

1-07-2010 | Developing a lighting control unit recently, the author found that available analogue or mechanical timers were not sufficiently accurate or...

1-07-2010 | Most hobbyists will have some tools that are battery-powered, such as a drill, screwdriver or power scissors. Unfortunately (and especially...

5-03-2010 | We just love simple and practical solutions like this. The Efergy shower timer is a smart little device that let's you know how much water y...

1-07-2009 | 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...

1-07-2009 | 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...