write me a arduino script that uses the open-meteo.com api to get the weather in berlin with a ethernetshield

To create an Arduino script that uses the Open-Meteo API to get weather data for Berlin with an Ethernet shield, you'll first need to ensure you have all the required libraries and the Ethernet shield properly connected. The Arduino Ethernet library allows your Arduino to access the internet via an Ethernet shield.

Here's a simple sketch that demonstrates how to get the current weather data for Berlin using the Open-Meteo API:

### Arduino Sketch

```cpp
#include <SPI.h>
#include <Ethernet.h>
#include <HttpClient.h> // Include this library for HTTP requests

// MAC address for Ethernet shield
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; // You can use a different MAC address

// Initialize the Ethernet client
EthernetClient client;
HttpClient http(client);

void setup() {
  // Start the serial communication
  Serial.begin(9600);
  // Start Ethernet connection
  Ethernet.begin(mac);
  
  // Give the Ethernet shield a second to initialize
  delay(1000);
  
  Serial.println("Connecting to Open-Meteo API...");
  
  // API URL for the weather data in Berlin
  const char *host = "api.open-meteo.com";
  const char *url = "/v1/forecast?latitude=52.52&longitude=13.4050&current_weather=true";

  if (client.connect(host, 80)) {
    Serial.println("Connected to server");
    
    // Make the HTTP GET request
    http.get(url);
    
    // Wait for the response
    while (http.responseStatus() == 0) {
      // Wait for response
    }
    
    // Read the response
    Serial.print("Response status: ");
    Serial.println(http.responseStatus());
    
    if (http.responseStatus() == 200) {
      // Successfully retrieved data
      Serial.println("Current Weather Data:");
      while (http.isResponseAvailable()) {
        String line = http.readStringUntil('\n');
        Serial.println(line);
      }
    } else {
      Serial.print("Error fetching data: ");
      Serial.println(http.responseStatus());
    }
  } else {
    Serial.println("Connection failed");
  }
}

void loop() {
  // Nothing to do here
}
```

### Required Libraries
1. **HttpClient**: You can download the `HttpClient` library for Arduino. Alternatively, if you don't have it, you can use a different method to make HTTP requests (e.g., using the `Client` class).
2. **Ethernet**: This should be included in Arduino IDE by default if you have the Ethernet library available.

### Steps:
1. **Connect the Ethernet Shield**: Make sure your Ethernet shield is properly connected to the Arduino.
2. **Install Libraries**: If you haven't yet, install the necessary libraries.
3. **Update MAC Address**: Modify the `mac` array with a unique MAC address if needed.
4. **Upload the code**: Upload the sketch to your Arduino board.
5. **Open Serial Monitor**: Open the Serial Monitor in the Arduino IDE set to `9600 Baud` to see the output.

### API Call
The API URL in the code retrieves the current weather for Berlin (latitude: 52.52, longitude: 13.4050) with a simple JSON response.

### Note:
- You may want to parse the JSON response to extract specific data points like temperature, wind speed, etc.
- Ensure that your Arduino is connected to the internet via Ethernet for this code to work properly. If you are behind a firewall or router, ensure that it allows outgoing connections on port 80.