LED clock concept: time display with LED. When the phone is on charge. Why do you want? when I go to sleep.I usually put my phone (N900) away from me. because I can turn the alarm off in my sleep. is convenient when you can see the time at a distance. implementation use Morse code (only idea morse code) 12 hour 57 minute looks like this: -** -----****(*)** //- long signal LED * short signal LED (*)signal brighter // does not look very comfortable. offer a minute rounded up a dozen that is 12 hour 57 minute = 1 hour (code: *) 4 hour 16 minute = 4 hour 20 minute (code: **** **) 9 hour 33 minute = 9 hour 30 minute (code: ****(*)**** ***) 12 hour 22 minute = 12 hour 20 minute (code: -* **) 3 hour 42 minute = 3 hour 40 minute (code: *** ****)