[7-segment display] digits?

Puzzles
#1

Number like that ?

I have a problem with Test4…

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#2

31 posts were merged into an existing topic: [Community Puzzle] 7-segment display

#32

13 posts were merged into an existing topic: [Community Puzzle] 7-segment display

#45

15 posts were merged into an existing topic: [Community Puzzle] 7-segment display

#46
#47