int LED1 = 26;   
int LED2=25; 					// Assign LED to pin GPIO26(D26)
void setup() {
  	pinMode (LED1, OUTPUT);			//Configure LED pin as output
pinMode (LED2, OUTPUT);
}
void loop() {
digitalWrite(LED1, HIGH);			//Command to turn ON LED
digitalWrite(LED2, LOW);	
delay(500);					//1 Second delay
digitalWrite(LED1, LOW);			//Command to turn OFF LED
digitalWrite(LED2, HIGH);	
delay(500);					//1 Second delay
}