안녕하세요!
이번엔 와이어링을 끝내고 코드를 실행햇는데 온도센서가 작동하지않습니다
사용한 온도센서는 ds18b20 인데 온도가 300도이상으로 나오고 변하지않습니다
 
// define the pins for the sensors
const int phSensorPin = A0;
const int temperatureSensorPin = 2;
const int ultrasonicTriggerPin = 3;
const int ultrasonicEchoPin = 4;
 
// define variables to store the sensor readings
float pHValue = 0.0;
float temperatureValue = 0.0;
float distanceValue = 0.0;
 
void setup() {
  // initialize serial communication
  Serial.begin(9600);
 
  // set the pin modes
  pinMode(temperatureSensorPin, INPUT);
  pinMode(ultrasonicTriggerPin, OUTPUT);
  pinMode(ultrasonicEchoPin, INPUT);
}
 
void loop() {
  // read the pH value from the sensor
  int rawValue = analogRead(phSensorPin);
  float voltage = rawValue * 5.0 / 1024.0;
  pHValue = 3.5 * voltage;
 
  // read the temperature from the sensor
  int rawTemperatureValue = analogRead(temperatureSensorPin);
  float voltageTemperature = rawTemperatureValue * 5.0 / 1024.0;
  temperatureValue = (voltageTemperature - 0.5) * 100.0;
 
  // read the distance from the ultrasonic sensor
  digitalWrite(ultrasonicTriggerPin, LOW);
  delayMicroseconds(2);
  digitalWrite(ultrasonicTriggerPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(ultrasonicTriggerPin, LOW);
  float duration = pulseIn(ultrasonicEchoPin, HIGH);
  distanceValue = (duration / 2.0) * 0.0343;
 
  // print the sensor values to the serial monitor
  Serial.print("pH value: ");
  Serial.println(pHValue);
  Serial.print("Temperature value: ");
  Serial.print(temperatureValue);
  Serial.println(" degrees Celsius");
  Serial.print("Distance value: ");
  Serial.print(distanceValue);
  Serial.println(" cm");
 
  // wait for 1 second before reading again
  delay(1000);
}

사용한 코드입니다