ANP 12/24 hours LED clock

!±8± ANP 12/24 hours LED clock

From www.josepino.com - Almost No Parts LED Clock using a microcontroller PIC 16F84A and a few components. Features * Can use common cathode or common anode 7-segment LED displays. * Displays time as 12 hours or 24 hours format. * Allows to enable or disable the display for battery-operated circuits. * Can control the display brightness to reduce power consumption * 7-segment LED displays are charlieplexed to reduce I/O ports usage. * PM LED indicator (optional) * Only 10 parts needed: 1 PIC 16F84A, 2 22pF Capacitors, 2 no switches, 1 4Mhz Xtal and 4 CA or CC 7segment LED displays. * Operates from 2.5 to 5.5 Volts, it can even work with a 3V coin battery NOTE: The display shows some glitches because the frequency of the video doesn't match with the frequency of the display. It works very well the project itself. Also, 7-segment red displays will be brighter than green displays. For more details about this project, visit: www.josepino.com Music: Vivaldi - Concerto for Mandolin & Orchesta in C Major: Allegro.

ANP 12/24 hours LED clock

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