Temp-4-2
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/* Alternate Blink Turns on one LED on for one second while the other is off, then reverses the LEDs for 1 second, repeatedly. Dr. Purdum, Dec. 15, 2014 */ /*-----( Import needed libraries )-----*/ // None Yet /*-----( Declare Constants and Pin Numbers )-----*/ // Give each LED a name: const int LED1 = 10; const int LED2 = 11; /*-----( Declare objects )-----*/ // None Yet /*-----( Declare Variables )-----*/ long counter = 0; void setup() /****** SETUP: RUNS ONCE ******/ { pinMode(LED1, OUTPUT); pinMode(LED2, OUTPUT); }//--(end setup )--- void loop() /****** LOOP: RUNS CONSTANTLY ******/ { if (counter % 2 == 1) { digitalWrite(LED1, LOW); // turn LED off by making the voltage LOW digitalWrite(LED2, HIGH); // turn LED on (HIGH is the voltage level) delay(1000); // wait for a second } if (counter % 2 == 0) { digitalWrite(LED1, HIGH); // turn LED on (HIGH is the voltage level) digitalWrite(LED2, LOW); // turn LED off by making the voltage LOW delay(1000); // wait for a second } counter = counter + 1; }//--(end main loop )---