I followed instruction how to drive 7 segment with adruino from this link: Make: Projects Until on Programming Step, a bunch of error happened while I compiled the code. the original code is here: Make-Projects/_7_segment.pde at master · ril3y/Make-Projects · GitHub . But it showed some error, So, I…

[SOLVED]Only F constant couldn't be known in every procedure scope

nickgammon March 24, 2012, 6:46am 3

For example, if you change F to FOO it compiles OK.

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