sixeyes:
OK. Given your selection of digits it may not be much of an issue.So are you happy with the power calculations?
Iain
Yes I am happy with the calculations. Just had to wrap my brain around the convention.
The 5 will be constant, the second will be 4/5/6 which is one extra segment per number, the third can be anything from 1 to 8 as far as current draw. So it will see the most current swing. But really, if you think about it...
0: 6 segments
1: 2 segments
2: 5 segments
3: 5 segments
4: 4 segments
5: 5 segments
6: 6 segments
7: 3 segments
8: 7 segments
9: 6 segments
So other than 1 and 7, every digit should have a similar brightness to other digits.
I dont know for sure yet, but the target is going to be between 42 and 68....probably tighter (48 and 62?). So the highest contrasts will be 51, 57, and 61. Not a problem.