jamieelliott Posted April 10, 2006 Report Share Posted April 10, 2006 I need help to design a simple countdown timerI would like to be able to select four different times 2mins, 5mins 10mins and 20mins. Once a time is selected I would like a visual representation using simple led lights. Then once the countdown is started the leds turn off after each minute.It has been suggested to me that I use a PIC to control the LEDs through FETs and resistors. Can anyone enlighten me a bit more? a circuit diagram would be great but any help will be most appreciated! Quote Link to comment Share on other sites More sharing options...
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