[arduino code examples for B4M]-05 Read free GPIO state

Code:
/*

 * ESP32 GPIO State Reader

 * Reads the state of GPIO47, GPIO48, GPIO7, GPIO40, GPIO0, and GPIO5

 * and prints the results to the serial monitor.

 * 

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

 */



#define GPIO_13  13

#define GPIO_40  40

#define GPIO_14  14

#define GPIO_48  48

#define GPIO_0   0

#define GPIO_47  47

#define GPIO_17  17

#define GPIO_21  21





void setup() {

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

    

    // Set GPIOs as input

    pinMode(GPIO_13, INPUT);

    pinMode(GPIO_40, INPUT);

    pinMode(GPIO_14, INPUT);

    pinMode(GPIO_48, INPUT);

    pinMode(GPIO_0, INPUT);

    pinMode(GPIO_47, INPUT);

    pinMode(GPIO_17, INPUT);

    pinMode(GPIO_21, INPUT);            

}



void loop() {

    // Read GPIO states

    int state_13 = digitalRead(GPIO_13);

    int state_40 = digitalRead(GPIO_40);

    int state_14  = digitalRead(GPIO_14);

    int state_48 = digitalRead(GPIO_48);

    int state_0  = digitalRead(GPIO_0);

    int state_47 = digitalRead(GPIO_47);

    int state_17 = digitalRead(GPIO_17);

    int state_21 = digitalRead(GPIO_21);



    // Print GPIO states to the serial monitor

    Serial.printf("GPIO13: %d, GPIO40: %d, GPIO14: %d, GPIO48: %d, GPIO0: %d, GPIO47: %d, GPIO17: %d, GPIO21: %d\n",

                  state_13, state_40, state_14, state_48, state_0, state_47, state_17, state_21);

    

    delay(1000); // Read GPIO states every second

}