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How many 7 Segment Displays can I connect to one MobiFlight Board?
That's theoretically 256 7 segment digits. 4 Modules connceted directly to the MobiFlight Board supporting a chain of 8 modules with 8 digits each. 4 x 8 chained modules x 8 digits = 256 digits. Currently the firmware limits to these 4 which use 12 pins at the Arduino Mega board. For each module you can create a chained setup of 8 modules in a row. Each module is able to drive 8 digits.