You may have noticed my guest blog on the Coridium website, and eventually on my site www.zatworks.com.
I wanted to do a short update as I developed a 3 digit prototype to test my software routines.
Here is a short video - 25 secs. I showed the 6 numbers (middle digit has a Datapoint), then what
I thought might be a representation of the 'dots' on the die. The six is a problem, I was going to
use the five(looks like an H) and turn on the datapoint. I think a mask with appropriate holes would
reduce the 'crowding' effect of adjacent displays- which I didn't show.
the 'crowding' effect is from the fact that the 1" displays are next to each other and in the 'dot' mode,
the 4,5,and 6 have a lot of verticle lines close to each other. Six displays across could get confusing,
hence the concept of a 'mask' to only show a small dot and cover up the rest of the segment.
The ending was my attempt to show that I had used two hex-driver chips - the 74LS365. I opted for some
higher power '540 chips which have octal (8) channels available for my final design.
Enjoy -- oops , too large; working with Administrator for a link. YouTube link https://youtu.be/l6en7cgiFNg
The datapoint needed a current limiting resistor, as a straight connection pulled more than 20ma!!
This is over the specs.
Post details of your projects here.
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