EXPERIMENT NO 1
Blinking
an LED
Aim:
Interfacing LED’s with ESP32-Microcontroller.
Description:
To
learn how to programme an ESP32 Microcontroller to blink an LED by connecting
an LED’S to its digital pins.
Hardware
Requirement:
ESP32 IoT
Development Kit and FRC cable.
Procedure:
1. Connect
P2 port and SV2(LED) port using FRC cable as shown above.
2. Connect
the USB cable to the board.
3. Open
Arduino IDE. Select DOIT ESP32 DEVKIT V1 in boards and select COM port.
4. Now
Write the program, verify and Upload it.
5. Now
you can see the LED blink on the ESP32 development board.
const
int L1=23,
L2=22,
L3=21,
L4=19,
L5=18,
L6=5,
L7=17,
L8=16; //initializing LED pins
void
setup()
{
pinMode(L1,
OUTPUT); //
Set all Port P2 pins as output
pinMode(L2,
OUTPUT);
pinMode(L3,
OUTPUT);
pinMode(L4,
OUTPUT);
pinMode(L5,
OUTPUT);
pinMode(L6,
OUTPUT);
pinMode(L7,
OUTPUT);
pinMode(L8,
OUTPUT);
}
void
loop()
{
digitalWrite(L1,
HIGH);
digitalWrite(L2,
HIGH);
digitalWrite(L3,
HIGH);
digitalWrite(L4,
HIGH);
digitalWrite(L5,
HIGH);
digitalWrite(L6,
HIGH);
digitalWrite(L7,
HIGH);
digitalWrite(L8,
HIGH);
delay(2000);
digitalWrite(L1,
LOW);
digitalWrite(L2,
LOW);
digitalWrite(L3,
LOW);
digitalWrite(L4,
LOW);
digitalWrite(L5,
LOW);
digitalWrite(L6,
LOW);
digitalWrite(L7,
LOW);
digitalWrite(L8,
LOW);
delay(2000);
}
