int Led = 13 ; // define LED Interface int buttonpin = 3 ; // define the linear Hall magnetic sensor interface int val ; // define numeric variables val void setup () { pinMode ( Led, OUTPUT) ; // define LED as output interface pinMode ( buttonpin, INPUT) ; // define linear Hall magnetic sensor output interface } void loop () { val = digitalRead ( buttonpin) ; // digital interface will be assigned a value of 3 to read val if ( val == HIGH) // When the linear Hall sensor detects a magnetic signal, LED flashes { digitalWrite ( Led, HIGH) ; } else { digitalWrite ( Led, LOW) ; } }
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