Lập Trình Watchdog Timer ESP32

#include <esp_task_wdt.h>

//3 seconds WDT

#define WDT_TIMEOUT 3

void setup() {

Serial.begin(115200);

Serial.println("Configuring WDT...");

esp_task_wdt_init(WDT_TIMEOUT, true); //enable panic so ESP32 restarts

esp_task_wdt_add(NULL); //add current thread to WDT watch

}

int i = 0;

int last = millis();

void loop() {

// resetting WDT every 2s, 5 times only

if (millis() - last >= 2000 && i < 5) {

Serial.println("Resetting WDT...");

esp_task_wdt_reset();

last = millis();

i++;

if (i == 5) {

Serial.println("Stopping WDT reset. CPU should reboot in 3s");

}

}

}