Hello all, I'm new to Arduino, but I purchased a budget pack Arduino One, with a 4 segment LCD display, one PIR motion sensor, and One set of the IR break-beam sensor. My goal is to have a race about 15 to 20 ft long, where the motion sensor starts the stopwatch upon moving and starting the race, t…

Making Arduino Uno Stopwatch with IR break-beam sensor & PIR motion sensor

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