PROGRAM:

 /*  Experiment No.1

     By: Rolando Estomaguio     -  Radar Specialist - Electronics Engineer     

     http://www.kits-gadgets.com
 

     Objective: To learn the operation of WeMOS NodeMCU and utilize its full functionality.   

      Title:  Running 8 LEDs  - Mode 0 

      Description:  Turns ON & OFF 8 LED in sequence repeatedly. 

*/

// The 8 LEDs are switch ON and OFF continuously with interval depending on the value of delay. 

void setup() {   

// initialize digital pin or GPIOs 5, 4, 0, 2,  14, 12, 13, and 15 as an output. 

pinMode(05, OUTPUT); 

pinMode(04, OUTPUT); 

pinMode(00, OUTPUT); 

pinMode(02, OUTPUT); 

pinMode(14, OUTPUT); 

pinMode(12, OUTPUT); 

pinMode(13, OUTPUT); 

pinMode(15, OUTPUT);

}

// the loop function runs over and over again forever

void loop() {   

digitalWrite(05,HIGH);   // turn the LED on (HIGH is the voltage level) 

delay(1000);              // wait for a second 

digitalWrite(05, LOW);    // turn the LED off by making the voltage LOW 

delay(1000);              // wait for a second

digitalWrite(04,HIGH);   // turn the LED on (HIGH is the voltage level) 

delay(1000);              // wait for a second 

digitalWrite(04, LOW);    // turn the LED off by making the voltage LOW 

delay(1000);              // wait for a second   

digitalWrite(00,HIGH);   // turn the LED on (HIGH is the voltage level)

delay(1000);              // wait for a second 

digitalWrite(00, LOW);    // turn the LED off by making the voltage LOW 

delay(1000);              // wait for a second

digitalWrite(02,HIGH);   // turn the LED on (HIGH is the voltage level) 

delay(1000);              // wait for a second 

digitalWrite(02, LOW);    // turn the LED off by making the voltage LOW 

delay(1000);              // wait for a second

digitalWrite(14,HIGH);   // turn the LED on (HIGH is the voltage level) 

delay(1000);              // wait for a second 

digitalWrite(14, LOW);    // turn the LED off by making the voltage LOW 

delay(1000);              // wait for a second

digitalWrite(12,HIGH);   // turn the LED on (HIGH is the voltage level) 

delay(1000);              // wait for a second 

digitalWrite(12, LOW);    // turn the LED off by making the voltage LOW 

delay(1000);              // wait for a second

digitalWrite(13,HIGH);   // turn the LED on (HIGH is the voltage level) 

delay(1000);              // wait for a second 

digitalWrite(13, LOW);    // turn the LED off by making the voltage LOW 

delay(1000);              // wait for a second

digitalWrite(15,HIGH);   // turn the LED on (HIGH is the voltage level) 

delay(1000);              // wait for a second 

digitalWrite(15, LOW);    // turn the LED off by making the voltage LOW

delay(1000);              // wait for a second 

 }