通过旋转编码器错误控制固态继电器

Question

我为我的学校制作这个项目，我正在使用 Arduino 制作整个冰箱，我使用 ds18b20 温度传感器，tm1637 来显示内部当前温度，并使用固态继电器在我选择的特定温度下启动电机，问题我使用 ec11 旋转编码器来改变 ssr 激活的温度，但是当我向任何方向转动旋钮时，它只会增加值而不会减少。我单独测试了编码器很多次，它工作得很好，但是当我将它添加到代码中时，它根本不起作用，但是当我删除 (printtemperarure) 函数时，它再次工作，我需要尽快帮助

注意：当我单独测试显示器和编码器时，它不断产生零而没有接触它

#include <TM1637Display.h>
#include <OneWire.h>
#include <DallasTemperature.h>



const int oneWireBus = 2;
OneWire oneWire(oneWireBus);
DallasTemperature sensors(&oneWire);
const int CLK = 3;
const int DIO = 4;
TM1637Display display = TM1637Display(CLK, DIO);

const uint8_t celsiusSymbol[] = {
    SEG_A | SEG_B | SEG_F | SEG_G,
    SEG_A | SEG_D | SEG_E | SEG_F
};
#define ContactA 10
#define ContactB 11
//#define SW_PIN 12


// ----- Logic
boolean LastStateA;
boolean CurrentStateA;
boolean CurrentStateB;



const int SSR_PIN = 9; // Example pin, replace with your SSR pin

// Threshold temperature
int motorThreshold = 20.0;
int newmotorThreshold = motorThreshold;

bool thresholdAdjusted = false;
// ==================================
//  setup()
// ==================================
void setup() {
  // ----- Configure Serial port
  Serial.begin(9600);
  Serial.println("Initializing...");
  display.clear();
  display.setBrightness(7);
  sensors.begin();
    // Set SSR pin as output
  pinMode(SSR_PIN, OUTPUT);
    Serial.println("Initialization complete.");
  // ----- Display initial count

  // ----- Configure encoder
  pinMode(ContactA, INPUT_PULLUP);
  pinMode(ContactB, INPUT_PULLUP);
  LastStateA = stateContactA();
}
void adjustThresholdTemperature() {
  /*
     The encoder output comprises two 90 degree offset squarewaves.
     The direction of rotation is:
     - clockwise if the state of output A is opposite to output B
     - counterclockwise if the state of output A is the same as output B
  */
  // ----- Check encoder output

  CurrentStateA = stateContactA();

  // ----- Record changes
  if (CurrentStateA != LastStateA) {
    CurrentStateB = digitalRead(ContactB);          // Check state of ContactB
        if (CurrentStateA == CurrentStateB)
        {
            // Clockwise rotation, increase threshold temperature
            motorThreshold += 2; // Example adjustment, change as needed
            thresholdAdjusted = true; // Set flag to indicate threshold adjustment
    if (motorThreshold % 2 == 0) {
    Serial.print("motorThreshold: ");
    Serial.println(motorThreshold / 1);  
    };
        }
        if (CurrentStateA != CurrentStateB)
        {
            // Counterclockwise rotation, decrease threshold temperature
            motorThreshold -=2; // Example adjustment, change as needed
            thresholdAdjusted = true; // Set flag to indicate threshold adjustment
                if (motorThreshold % 2 == 0) {
    Serial.print("motorThreshold: ");
    Serial.println(motorThreshold / 1);  
    };
    }

       // Counterclockwise rotation
    LastStateA = CurrentStateA;
  }
        /*if (digitalRead(SW_PIN) == LOW)
    {
        // Button is pressed
        // Reset threshold temperature to default value
        motorThreshold = 20.0; // Example default value, change as needed
        Serial.println("Threshold temperature reset to default.");
        thresholdAdjusted = true; // Set flag to indicate threshold adjustment
        delay(200); // Debouncing delay
    } */
  }

void printTemperature()
{
    sensors.requestTemperatures();
    float measuredTemperature = sensors.getTempCByIndex(0);
    Serial.print("Current temperature: ");
    Serial.print(measuredTemperature);
    Serial.println("°C");

    //Display current temperature
    display.showNumberDec(measuredTemperature, false, 2, 0);
    display.setSegments(celsiusSymbol, 2, 2);

    // Check if temperature exceeds threshold
    if (measuredTemperature >= motorThreshold) {
        // Activate SSR
        digitalWrite(SSR_PIN, HIGH);
    } else {
        // Deactivate SSR
        digitalWrite(SSR_PIN, LOW);
    }
 if (thresholdAdjusted)
 {
 unsigned long startTime = millis();
 while (millis() - startTime < 3000)
 {
// Flash the display by toggling brightness every 500 milliseconds
 if ((millis() - startTime) % 500 < 250)
 {
 display.showNumberDec(motorThreshold, false, 2, 0);
 display.setSegments(celsiusSymbol, 2, 2);
 }
 else
 {
 display.clear();
 }
 }
 thresholdAdjusted = false; // Reset threshold adjustment flag after 3 seconds
 }
}


boolean stateContactA() {
  /*
      Two integrators are used to suppress contact bounce.
      The first integrator to reach MaxCount wins
  */
  // ----- Locals
  int Closed = 0;                                   // Integrator
  int Open = 0;                                     // Integrator
  int MaxCount = 250;                               // Increase this value if you see contact bounce

  // ----- Debounce Contact A
  while (1) {
    // ----- Check ContactA
    if (digitalRead(ContactA)) {
      // ----- ContactA is Open
      Closed = 0;                                   // Empty opposite integrator
      Open++;                                       // Integrate
      if (Open > MaxCount) return HIGH;
    } else {
      // ----- ContactA is Closed
      Open = 0;                                     // Empty opposite integrator
      Closed++;                                     // Integrate
      if (Closed > MaxCount) return LOW;
    }
  }
}
//  loop()
// ==================================
void loop() {
    adjustThresholdTemperature();
  printTemperature();

}

Answer 1

您的

printTemperature()

会阻塞 3 秒，而为了捕捉旋钮的方向，您必须至少每隔 50 毫秒或更短时间测试

ContactA

和

ContactB

一次，才能做出响应。

如果您尝试删除闪烁的显示部分，请再次更新它是如何进行的，也许我们可以更清楚地看到那里发生了什么，当旋钮逆时针转动时，阻止阈值降低