Hi, I'm a high school student who's working on a project with Ultrasound, the purpose of the project is to make the buzzer sound when the Ultrasound emitter detects an object, also a green LED will flash when there's no obstruction and a red one when there's an obstacle, I get the problem mentioned …

expected primary-expression before ' ' token arduino

system April 26, 2014, 1:24am 10

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