This multipurpose adjustable timer circuit will give you alarm after every specific interval of time. You can vary the time interval with the help of 8 way dip switch. Therefore this timer can be used in kitchen, or by students preparing for competitive exam. As many of us have habit to forget, to switch off button of gas, electric oven which lead to wastage of resources and your hard work. Now with the help of this circuit you will receive an alarm after specific time so that you can remember to off the device. Some other features of the circuit are: You can also use it as alarm to switch off the motor because while watching TV or talking over phone we forget to switch off the pump in that case also it will give an alarm. You can set the time period for coking also like we used to in microwave oven.

 Many people have habits to sleep while listening to music. So, device remains switched ON for the long durations which lead to wastage of energy.  To avoid [[wysiwyg_imageupload::]]this, we have described a simple circuit which automatically become OFF after the set time. In this circuit, device become on while sensing the darkness , hence whenever you switch off the light, CD player connected to relay becomes ON and after set time it becomes OFF so there is no need to off the device as it turn off automatically so there is no wastage of electricity also.The circuit is built around the CD4060,LDR and few more components. IC CD4060 is a 14 stage ripple carry binary counter, divider and an oscillator. Its built in oscillator is main feature of this IC that’s why it can be used in numerous application like flasher, clock generator in timer circuits. LDR is a light dependent resistor its property depends upon the intensity of light falling on it.