#if CONFIG_FREERTOS_UNICORE #define ARDUINO_RUNNING_CORE 0 #else #define ARDUINO_RUNNING_CORE 1 #endif #ifndef LED_BUILTIN #define LED_BUILTIN 13 #endif // define two tasks for Blink & AnalogRead void TaskBlink( void *pvParameters ); void TaskAnalogReadA3( void *pvParameters ); // the setup function runs once when you press reset or power the board void setup() { // initialize serial communication at 115200 bits per second: Serial.begin(115200); // Now set up two tasks to run independently. xTaskCreatePinnedToCore( TaskBlink , "TaskBlink" // A name just for humans , 1024 // This stack size can be checked & adjusted by reading the Stack Highwater , NULL , 2 // Priority, with 3 (configMAX_PRIORITIES - 1) being the highest, and 0 being the lowest. , NULL , ARDUINO_RUNNING_CORE); xTaskCreatePinnedToCore( TaskAnalogReadA3 , "AnalogReadA3" , 1024 // Stack size , NULL , 1 // Priority , NULL , ARDUINO_RUNNING_CORE); // Now the task scheduler, which takes over control of scheduling individual tasks, is automatically started. } void loop() { // Empty. Things are done in Tasks. } /*--------------------------------------------------*/ /*---------------------- Tasks ---------------------*/ /*--------------------------------------------------*/ void TaskBlink(void *pvParameters) // This is a task. { (void) pvParameters; /* Blink Turns on an LED on for one second, then off for one second, repeatedly. If you want to know what pin the on-board LED is connected to on your ESP32 model, check the Technical Specs of your board. */ // initialize digital LED_BUILTIN on pin 13 as an output. pinMode(LED_BUILTIN, OUTPUT); for (;;) // A Task shall never return or exit. { digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level) vTaskDelay(100); // one tick delay (15ms) in between reads for stability digitalWrite(LED_BUILTIN, LOW); // turn the LED off by making the voltage LOW vTaskDelay(100); // one tick delay (15ms) in between reads for stability } } void TaskAnalogReadA3(void *pvParameters) // This is a task. { (void) pvParameters; /* AnalogReadSerial Reads an analog input on pin A3, prints the result to the serial monitor. Graphical representation is available using serial plotter (Tools > Serial Plotter menu) Attach the center pin of a potentiometer to pin A3, and the outside pins to +5V and ground. This example code is in the public domain. */ for (;;) { // read the input on analog pin A3: int sensorValueA3 = analogRead(A3); // print out the value you read: Serial.println(sensorValueA3); vTaskDelay(10); // one tick delay (15ms) in between reads for stability } }