Do an Arduino project with a temperature sensor, how to find libraries and resources?

1. Popular Temperature Sensors for Arduino

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🧰 2. Required Libraries

Here are the matching Arduino libraries (install via Library Manager):

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📦 3. Example Code for DHT22 (Digital Sensor)

cpp

#include <DHT.h>

#define DHTPIN 2          // Pin where the sensor is connected
#define DHTTYPE DHT22     // DHT11 or DHT22

DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(9600);
  dht.begin();
}

void loop() {
  float temp = dht.readTemperature();  // Temperature in °C
  float hum = dht.readHumidity();      // Humidity in %

  if (isnan(temp) || isnan(hum)) {
    Serial.println("Sensor error!");
  } else {
    Serial.print("Temperature: ");
    Serial.print(temp);
    Serial.println(" °C");
  }

  delay(2000);
}

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💡 4. Where to Find Examples and Help

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✅ Tip: Choose the Sensor Based on Your Application