Description

Compare the value on the left side of the operator with the value on the right side of the operator. When the two operands are equal, return true.

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Syntax

x == y;

//this returns true when x is equal to y.

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Example Code

val = digitalRead (pin_number);  // let val = HIGH or LOW

if (val == HIGH) // When the val is equal to HIGH
{
digitalWrite (13, LOW); //Turn off the built-in LED
}

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