Hi i have tried to combine 2 sketches. Fist one is from Spark Fun. It is there demo sketch of there 4 digit 7 segment display which is a counting sketch. 1 to 9999. Second is an LDR sketch, lazer trip wire. I would like to put the lazer across a door and every time the beam is broken the 7 seg disp…

Combing to sketches

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