LED Pocketwatch v1.0

We have seen our fair share of clock kits and LED displays this year. Now we have a pocket watch complete with 133 (hand soldered) LEDs, room for a temperature controlled oscillator for real time clock capabilites, a LiPo battery, and a cell phone vibrator to provide a simulated “second hand tick” feeling. And the whole watch is powered by a PIC 16F946.

The pocketwatch also has an alarm function. The alarm is set by holding depressing the stem for 1.5 seconds, whereupon the LEDs will begin to blink. Setting the alarm is handled identically to setting the time. Entering alarm mode sets the alarm on; it will stay on until programming mode is entered, or until the alarm rings. When the alarm goes off, the vibrator inside will pulse in time with flashing LEDs displaying the time.



[Source] Hack-A-Day via LED Pocketwatch v1.0