#include <Wire.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BMP085.h>
#include <DHT.h>
// NTC sensor pins
const int ntcPin1 = A0;
const int ntcPin2 = A1;
const int ntcPin3 = A2;
const int ntcPin4 = A3;
// BMP180 sensor
Adafruit_BMP085 bmp;
// DHT11 sensor
#define DHTPIN 4
#define DHTTYPE DHT11
DHT dht(DHTPIN, DHTTYPE);
void setup() {
Serial.begin(9600);
if (!bmp.begin()) {
Serial.println("Could not find a valid BMP180 sensor, check wiring!");
while (1);
}
dht.begin();
}
void loop() {
// Read temperatures from NTC sensors
float temperature1 = readTemperature(ntcPin1);
float temperature2 = readTemperature(ntcPin2);
float temperature3 = readTemperature(ntcPin3);
float temperature4 = readTemperature(ntcPin4);
// Read pressure from BMP180 sensor
float pressure = bmp.readPressure() / 100.0; // Convert Pa to hPa
// Read humidity from DHT11 sensor
float humidity = dht.readHumidity();
// Print sensor values to serial monitor
Serial.print("Pressure:");
Serial.print(pressure);
Serial.println("hPa");
Serial.print("Humidity:");
Serial.print(humidity);
Serial.println("%");
Serial.print("Temperature 1:");
Serial.print(temperature1);
Serial.println("°C");
Serial.print("Temperature 2:");
Serial.print(temperature2);
Serial.println("°C");
Serial.print("Temperature 3:");
Serial.print(temperature3);
Serial.println("°C");
Serial.print("Temperature 4:");
Serial.print(temperature4);
Serial.println("°C");
//delay(1000); // Adjust delay as needed
}
float readTemperature(int ntcPin) {
// Implement the logic for reading temperature from the NTC sensor
// Replace this with your specific code or function
// You can use the same convertToTemperature function from the previous example
// For example, using the function from the previous example:
int adcValue = analogRead(ntcPin);
return convertToTemperature(adcValue);
}
float convertToTemperature(int adcValue) {
// Replace the parameters below with the characteristics of your NTC sensor
float referenceResistance = 10000.0; // Resistance of the NTC at the reference temperature (in ohms)
float referenceTemperature = 25.0; // Reference temperature (in degrees Celsius)
float betaValue = 3950.0; // Beta value of the NTC
// Calculate the resistance of the NTC based on the measured ADC value
float resistance = referenceResistance * (1023.0 / adcValue - 1.0);
// Calculate the temperature using the Steinhart-Hart equation
float temperature = 1.0 / (1.0 / (referenceTemperature + 273.15) + (1.0 / betaValue) * log(resistance / referenceResistance));
temperature -= 273.15; // Convert temperature to degrees Celsius
return temperature;
}
