Creating a minimal LED clock with Arduino for those with poor eyesight? Answered
I've always had poor vision and cannot see any clocks at night without glasses or contact lenses. Analog clocks are of no use. 7-segment clocks would have to be so big and bright, that they'd keep everyone up at night. Clocks that make noise would create similar problems.
I have an idea for a clock that has four, rather dim LEDs flashing the time constantly. I need a LED for each place value: 10hr, 1hr, 10min, and a 1min LED, in different colors as necessary. I could also settle with a 5hr, 1hr, and 5min LED setup. As the clock runs, each place value would be blinked, pause a few seconds, and repeat the process. That way, just a quick count would let me know how much sleep time I have left.
Since I'm new to Arduino, it's beyond me for now. I'm looking for pointers as I haven't found any clock projects with such a simple display.
Has anyone seen any code snippets that could help me out?
What would be a good timer (GPS, WWVB, RTC, etc.)?
Where would be a good place to start?
I'm not looking for a finished product, obviously. I want to write the code myself. But I also would like some good building blocks to begin with to help me learn the process.
Any help would be appreciated!