LED dot matrix clock is ready...

my LED dot matrix clock - PIC 18F13K50 controlled

finally mounted it into a case or better say, on top of it. added pushbuttons to set the time.

a little more than 800 program words (from 4096).

added a wall adapter as power supply, electronic transformer from USB hub that is not needed. no power jack, soldered the wire directly.

after all it is a circuit that I use at home, not something that I install commercially. I do not have to put ultimate efforts into it- but having a small box for it is appreciate i think.

the control program is 100% written in RISC assembly, 18F PIC, and is using table reads as well many of the extra instructions.

LED dot matrix is built from standard 20 mA LEDs, and has serial drive. there are no resistors, 5 volt supply, but 8x digital MOSFETs for the rows.

Anything else? OK it has a 8 MHz crystal, and very little extra parts.

pic.mtfujitown.info
ycprojects.wordpress.com - I should write a new blog entry about this dot matrix clock, and about the LED timer.