Hello i'm very new to arduino just bought my board today Here is what I want to build. I want to turn the device on with a key so it can not be turned off then a timer will start to count down lets say 10 minutes once this timer runs out I want the display to flash and count down for lets say an…

Watch Keeping timer

system April 29, 2014, 1:13am 2

Whatever you do , don't take this to an airport (on your way to visit friends and family and show them your arduino projects....)

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