ESP-32 LED chaser using simulation

OBJECTIVE

The project aims to help beginners understand how to control multiple digital outputs using basic programming logic and timing functions in Arduino (ESP32).

MODULES REQUIRED

Esp-32
12 x LEDS
12 x 220ohm resistors

SCHEMATIC DIAGRAM

SCHEMATIC CONNECTION

Connection LED :

Connect the anode of LED1 to GPIO15 of the ESP32 through a current-limiting resistor.

Connect the anode of LED2 to GPIO2 of the ESP32 through a current-limiting resistor.

Connect the anode of LED3 to GPIO4 of the ESP32 through a current-limiting resistor

Connect the anode of LED4 to GPIO5 of the ESP32 through a current-limiting resistor

Connect the anode of LED5 to GPIO18 of the ESP32 through a current-limiting resistor

Connect the anode of LED6 to GPIO19 of the ESP32 through a current-limiting resistor

Connect the anode of LED7 to GPIO21 of the ESP32 through a current-limiting resistor

Connect the anode of LED8 to GPIO22 of the ESP32 through a current-limiting resistor

Connect the anode of LED9 to GPIO23 of the ESP32 through a current-limiting resistor

Connect the anode of LED10 to GPIO32 of the ESP32 through a current-limiting resistor

Connect the anode of LED11 to GPIO33 of the ESP32 through a current-limiting resistor

Connect the anode of LED12 to GPIO25 of the ESP32 through a current-limiting resistor

Connect the cathodes (–) of LED1 to LED12 to the GND pin of the ESP32.

To begin your project, click this template link:

Simulate on Wokwi

ARDUINO CODE



//initializing a variable for digital pin 2 to 13
int led1 = 15;
int led2 = 2;
int led3 = 4;
int led4 = 5;
int led5 = 18;
int led6 = 19;
int led7 = 21;
int led8 = 22;
int led9 = 23;
int led10 = 32;
int led11 = 33;
int led12 = 25;

void setup() {
  // put your setup code here, to run once:
 //initialize digital pin as output
 pinMode(led1, OUTPUT);
 pinMode(led2, OUTPUT);
 pinMode(led3, OUTPUT);
 pinMode(led4, OUTPUT);
 pinMode(led5, OUTPUT);
 pinMode(led6, OUTPUT);
 pinMode(led7, OUTPUT);
 pinMode(led8, OUTPUT);
 pinMode(led9, OUTPUT);
 pinMode(led10, OUTPUT);
 pinMode(led11, OUTPUT);
 pinMode(led12, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
 digitalWrite(led1, HIGH);//it mean to give 5v(high) to pins.here ,the led will be on.
 delay(50);//1000 = 1 second
 digitalWrite(led2, HIGH);
 delay(50);
 digitalWrite(led3, HIGH);
 delay(50);
  digitalWrite(led4, HIGH);
 delay(50);
  digitalWrite(led5, HIGH);
 delay(50);
  digitalWrite(led6, HIGH);
 delay(50);
  digitalWrite(led7, HIGH);
 delay(50);
  digitalWrite(led8, HIGH);
 delay(50);
  digitalWrite(led9, HIGH);
 delay(50);
  digitalWrite(led10, HIGH);
 delay(50);
   digitalWrite(led11, HIGH);
 delay(50);
   digitalWrite(led12, HIGH);
 delay(50);

 digitalWrite(led1, LOW);//it mean to give 0v(low) to pin.here, led will be off
 delay(50);
 digitalWrite(led2, LOW);
 delay(50);
 digitalWrite(led3, LOW);
 delay(50);
 digitalWrite(led4, LOW);
 delay(50);
 digitalWrite(led5, LOW);
 delay(50);
 digitalWrite(led6, LOW);
 delay(50);
 digitalWrite(led7, LOW);
 delay(50);
 digitalWrite(led8, LOW);
 delay(50);
 digitalWrite(led9, LOW);
 delay(50);
 digitalWrite(led10, LOW);
 delay(50);
 digitalWrite(led11, LOW);
 delay(50);
 digitalWrite(led12, LOW);
 delay(50);
}

INSTRUCTIONS

Assemble the circuit by connecting all components as shown in the schematic diagram.

On the left side of the screen, open sketch.ino and write your Arduino code.

After completing the circuit and writing the code, click the green Play button to start the simulation.

This project teaches beginners how to control multiple LEDs using the ESP32 by applying simple programming logic. It also demonstrates the use of timing functions to create a sequential LED chaser effect.

WORKING PRINCIPLE

The ESP32 sequentially turns LEDs on and off using loops and delays, creating a forward and reverse chasing light effect.

Project Link

for your reference.