To create a basic Arduino data logger that interacts with ChatGPT, you'll need an Arduino board with an internet connection (such as the ESP8266 or ESP32) and a server to handle HTTP requests.

Here's a simple example using an ESP8266 board and a server running on Python:

Arduino Code (ESP8266):
```cpp
#include
#include
#include

const char* ssid = "YOUR_WIFI_SSID";
const char* password = "YOUR_WIFI_PASSWORD";
const char* serverName = "YOUR_SERVER_IP_OR_DOMAIN";

void setup() {
  Serial.begin(115200);
  delay(10);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
}

void loop() {
  if (WiFi.status() == WL_CONNECTED) {
    HTTPClient http;
    http.begin(serverName);
    int httpCode = http.GET();
    if (httpCode > 0) {
      String payload = http.getString();
      Serial.println(payload);
    }
    http.end();
  }
  delay(5000); // Wait for 5 seconds
}
```

Python Server:
```python
from http.server import BaseHTTPRequestHandler, HTTPServer

HOST_NAME = '0.0.0.0'
PORT_NUMBER = 8080

class MyHandler(BaseHTTPRequestHandler):
    def do_GET(self):
        self.send_response(200)
        self.send_header('Content-type', 'text/html')
        self.end_headers()
        self.wfile.write(bytes("Hello from ChatGPT!", "utf-8"))

if __name__ == '__main__':
    server_class = HTTPServer
    httpd = server_class((HOST_NAME, PORT_NUMBER), MyHandler)
    print('Server starts - %s:%s' % (HOST_NAME, PORT_NUMBER))
    try:
        httpd.serve_forever()
    except KeyboardInterrupt:
        pass
    httpd.server_close()
    print('Server stops - %s:%s' % (HOST_NAME, PORT_NUMBER))
```

Make sure to replace `"YOUR_WIFI_SSID"`, `"YOUR_WIFI_PASSWORD"`, and `"YOUR_SERVER_IP_OR_DOMAIN"` with your WiFi credentials and server details. The Arduino code makes a GET request to the Python server every 5 seconds, and the server responds with "Hello from ChatGPT!". You can modify the server to handle different requests and responses as needed.