[arduino code examples for N20]-01 Read digital input ports state

Code:
/*

  Made by KinCony IoT: https://www.kincony.com



  This program reads the digital state of GPIO15 and GPIO16 on an ESP32

  and prints their state (HIGH or LOW) to the serial monitor every 500ms.

*/



#define PIN_GPIO15 15  // Define GPIO15

#define PIN_GPIO16 16  // Define GPIO16



void setup() {

  Serial.begin(115200);               // Initialize serial communication at 115200 baud

  pinMode(PIN_GPIO15, INPUT);         // Set GPIO15 as input

  pinMode(PIN_GPIO16, INPUT);         // Set GPIO16 as input

  Serial.println("ESP32 GPIO15 and GPIO16 State Monitor");

}



void loop() {

  int state15 = digitalRead(PIN_GPIO15);  // Read state of GPIO15

  int state16 = digitalRead(PIN_GPIO16);  // Read state of GPIO16



  // Print the state to the serial monitor

  Serial.print("GPIO15: ");

  Serial.print(state15 == HIGH ? "HIGH" : "LOW");

  Serial.print("  |  GPIO16: ");

  Serial.println(state16 == HIGH ? "HIGH" : "LOW");



  delay(500);  // Wait for 500 milliseconds before reading again

}