This is my current main project: messing with a 4029. This is a really fun chip: it counts up to 15 in binary, and both up and down! This video here shows what I've done with it so far (made a clock using a 555, got some sort of LED output, and have some of the config pins wired to DIP switches).



My future plans are to get the preset pins wired to DIP switches, make the clock speed variable, and get this whole thing finalized and put on a printed circuit board.

(Blog post: http://dipswitcher.wordpress.com/2012/08/15/configurable-4029-binary-counter-very-early-stage/)