What are the best sensors for Arduino projects?

What are the best sensors for Arduino projects?

There are several great sensors for Arduino, including temperature sensors like the DHT11, ultrasonic sensors for distance measurement, and light sensors like the LDR. What specific project do you have in mind?

I'm thinking about a weather station project.

For a weather station, I recommend using the DHT22 for temperature and humidity, a BMP180 for atmospheric pressure, and a rain gauge sensor. Would you like more details on how to connect them?

Yes, please! How do I connect the DHT22?

To connect the DHT22, you'll need to connect the VCC pin to 5V, the GND pin to ground, and the data pin to a digital pin on the Arduino. You can use the DHT library to read the data. Do you need help with the code?

That would be great! Can you provide a sample code?

Sure! Here's a simple code snippet to get you started:

#include <DHT.h>

#define DHTPIN 2  // Pin where the DHT22 is connected
#define DHTTYPE DHT22  // DHT 22 (AM2302)

DHT dht(DHTPIN, DHTTYPE);

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

void loop() {
  delay(2000);
  float h = dht.readHumidity();
  float t = dht.readTemperature();
  Serial.print("Humidity: ");
  Serial.print(h);
  Serial.print("%  Temperature: ");
  Serial.print(t);
  Serial.println("*C");
}

Let me know if you have any questions!