Monday, September 15, 2008
Schematic of the 5x7 Led Dot Matrix Clock
The above image is the schematic of the 5x7 led dot matrix digital clock. It includes a custom made component in Eagle, small 5x7 led dot matrix. However, this schematic is also working for any size of the 5x7 led dot matrix.I will post the detail about the firmware later.
-- updated 29 Nov 2009 ---
There is an error in the schematic, the MCU in the schematic is PIC16F887 (not PIC16F877)which has an internal oscillator so you don't need the external oscillator for the MCU. But you still need the 32.768 KHz for timebase.
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