**Non-Blocking Control** rev_08

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    - Project: **Non-Blocking Control**
    - Source Code NOT compiled for: ESP32 DevKit V1
    - Source Code created on: 2025-01-26 06:35:56

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
    /* 温度到达 60led亮灯 */
/****** END SYSTEM REQUIREMENTS *****/


/********* User code review feedback **********
#### Feedback 1 ####
- 温度到达30伺服转动90度3秒回转回 不要阻塞
********* User code review feedback **********/

/* START CODE */

/****** DEFINITION OF LIBRARIES *****/
#include <DHT.h>    //https://github.com/adafruit/DHT-sensor-library
#include <Deneyap_Servo.h>  //https://github.com/deneyapkart/deneyap-servo-arduino-library

/****** FUNCTION PROTOTYPES *****/
void setup(void);
void loop(void);
void updateOutputs(void);
void readTemperature(void);
void rotateServoNonBlocking(); // New function for non-blocking servo rotation

/***** DEFINITION OF DIGITAL INPUT PINS *****/
const uint8_t DHT22_DOUT_PIN_D4 = 4;

/***** DEFINITION OF DIGITAL OUTPUT PINS *****/
const uint8_t LED_PIN_D14 = 14;

/***** DEFINITION OF PWM OUTPUT PINS *****/
const uint8_t Servomotor_PWMSignal_PIN_D13 = 13;

/***** DEFINITION OF OUTPUT RAW VARIABLES *****/
bool LED_PIN_D14_rawData = 0;
uint8_t Servomotor_PWMSignal_PIN_D13_rawData = 0;

/***** DEFINITION OF OUTPUT PHYSICAL VARIABLES *****/
float LED_PIN_D14_phyData = 0.0;
float Servomotor_PWMSignal_PIN_D13_phyData = 0.0;

// Variables for non-blocking servo rotation
unsigned long previousMillis = 0;
const long interval = 3000; // 3 seconds
bool servoRotated = false;

// Create an instance of the DHT sensor
DHT dht(DHT22_DOUT_PIN_D4, DHT22);

// Create an instance of the Servo
Servo servo;

void setup(void)
{
    // Initialize the DHT sensor
    dht.begin();

    // Set pin modes
    pinMode(LED_PIN_D14, OUTPUT);
    pinMode(Servomotor_PWMSignal_PIN_D13, OUTPUT);
}

void loop(void)
{
    // Read temperature and update outputs
    readTemperature();
    updateOutputs(); // Refresh output data
    rotateServoNonBlocking(); // Handle non-blocking servo rotation
}

void readTemperature()
{
    // Read temperature from the DHT sensor
    float temperature = dht.readTemperature();

    // Check if the reading is valid
    if (isnan(temperature)) {
        Serial.println("Failed to read from DHT sensor!");
        return;
    }

    // Check if temperature reaches 60 degrees
    if (temperature >= 60) {
        LED_PIN_D14_rawData = true; // Turn on LED
    } else {
        LED_PIN_D14_rawData = false; // Turn off LED
    }

    // Check if temperature reaches 30 degrees for servo rotation
    if (temperature >= 30 && !servoRotated) {
        servo.write(90); // Rotate servo to 90 degrees
        previousMillis = millis(); // Reset the timer
        servoRotated = true; // Set the flag to indicate servo has rotated
    }
}

void updateOutputs()
{
    digitalWrite(LED_PIN_D14, LED_PIN_D14_rawData);
    analogWrite(Servomotor_PWMSignal_PIN_D13, Servomotor_PWMSignal_PIN_D13_rawData);
}

void rotateServoNonBlocking()
{
    // Check if the servo has rotated
    if (servoRotated) {
        unsigned long currentMillis = millis();
        // Check if 3 seconds have passed
        if (currentMillis - previousMillis >= interval) {
            servo.write(0); // Rotate back to 0 degrees
            servoRotated = false; // Reset the flag
        }
    }
}

/* END CODE */