Is there a solution to this problem:
after long searching, why display not working, i found, that
my 7segment 4digit display sm56425bsr3(that was in the package tick tock shield(04/03/2013)) is common cathode,
and signals from TM1636 are for common anode display.
how to reprogram tm1636 or something else, to make display working?
PS(i have bought it long ago and only now have time to play with it)