first commit. this is before i attempt PWM on a single digit of 7-segment leds
naive PWM where i suppress display of odd numbers using 9 pin as control pin through a common collector BJT
it\'s already counting in the right order and the approximate 1 second durations is maintained even though 166 * 6.s isn\'t really 1000 ms.
it works. refresh rate and duration are now a parameter for the double-digit \'rendering\' function.
Merge branch 'master' of https://github.com/frameworkdartboard/aardwiener