I just want to know if some one can provided me some help as I'm starting to built my first project for Arduino. for my first project I would like to create a Digital Clock compose of LED. Please see attached file, what I want to achieve on this project is that the GREEN LED will be my Second counter, and the RED LED will be the Hours and Minutes.
GREEN LED = 60 pcs.
RED LED = 84 pcs.
YELLOW LED = 2 pcs.
What help do you expect? You didn't ask a question.
For driving such a large amount of LEDS shift registers are probably the cheapest and easiest way, but maybe you already know that.
Is a good practice to attach picture image file then other document for easy access,
You can use this Seven Segment Display Library to allows an arduino to easily display numbers in decimal format on a 4 digit 7-segment display without a separate 7-segment display controller.
you can also use MAX7219 a separate 4 digit 7-segment display controller for your Hours and Minutes display.
for your 60 GREEN LED Second counter, you can use multiplexing two of the 74HC595 shift register to have 8X8 outputs.
Once you get over sixteen LEDs, the MAX7219 is the answer. (Drives 64 LEDs per chip, easily chain-able for more. There are drivers for even greater numbers, but the MAX7219 is readily available.)
