Pardon my newbieness,
I'm trying to build a shock sensor which will record each time there is a big enough shock. I'd like it to start at 10, and count down to 0. From what I've understood thus far, having 2 segmented displays would be easiest. Further down the road, I'd like to have the leading 0 be a blank (10, 9, 8, 7... rather than 10, 09, 08, 07).
I'd really like some reading material and maybe a wiring schematic. I want to understand the chips, and how they work, rather than assembling what others have conceptualized.
From what I've found so far, I could use 4000 series chips (4029?) or 70000, although I'm still not too sure what exactly I'm looking for.