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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
fixed
The dead segment is always off or always on => sometimes it do the right thing (e.g. semgent "a" always on in a display showing "1".
1- all segments except "c1" are surely working
2- look at the last digit of the first two numbers (3/6)