ESP32 code
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/*
*
* Example code for ESP32-S:
* The code blinks the onboard LED (at D2 in GPIO 02) every 0.500 seconds.
* The code also prints by serial communcation the word "Hello" during the
* ON stage of the LED, and then prints "World" during the OFF.
* Gerardo Marx 19/Jul/2022
*/
// this variable is defined in pins_arduino.h for DOIT ESP32 DEVKIT V1
// int LED_BUILTIN = 02;
int LED = 02;
void setup() {
// put your setup code here, to run once:
pinMode(LED, OUTPUT);
//serial monitor setup
Serial.begin(115200);
}
void loop() {
// put your main code here, to run repeatedly:
Serial.print("ON");
digitalWrite(LED, HIGH);
delay(500);
// after delay
Serial.print(" - OFF\n");
digitalWrite(LED, LOW);
delay(500);
}