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Dual-Core Programming for ESP32 | NexaLearn IoT Lab | NexaLearn

Internet of Things (IoT)25 دقيقة

Dual-Core Programming for ESP32

How to run two different functions at exactly the same time.

Lesson Content

While Arduino Uno has a single core, ESP32 has two processors (Core 0 and Core 1). By default your code runs on Core 1 while Core 0 handles Wi-Fi. Using the built-in FreeRTOS environment, you can force Arduino to run a complex task (like reading a camera) on Core 0 while Core 1 manages the display.

Components Needed

ESP32

Code Example

TaskHandle_t Task1;
void setup() {
  xTaskCreatePinnedToCore(
      Task1code, "Task1", 10000, NULL, 1, &Task1, 0); 
  // Task 1 runs on Core 0
}
void Task1code( void * pvParameters ){
  for(;;) {
    // هذا الكود سيعمل بالتوازي مع دالة loop() العادية
  }
}
void loop() {}

Common Mistakes

Using the same variables from both cores simultaneously without using locks (Mutex), causing data conflicts (Race Condition) and system crashes.

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