diff --git a/config.h b/config.h
new file mode 100644
index 0000000..3bc0aa6
--- /dev/null
+++ b/config.h
@@ -0,0 +1,19 @@
+#ifndef CONFIG_H
+#define CONFIG_H
+
+// Wi-Fi Configuration
+#define WIFI_SSID "your_wifi_ssid"          // Replace with your Wi-Fi SSID
+#define WIFI_PASSWORD "your_wifi_password"  // Replace with your Wi-Fi Password
+
+// ThingSpeak Configuration
+#define THINGSPEAK_API_KEY "your_api_key"   // Replace with your ThingSpeak API Key
+
+// Telegram Bot Configuration
+#define TELEGRAM_TOKEN "your_bot_token"     // Replace with your Telegram bot token
+#define TELEGRAM_CHAT_ID "your_chat_id"     // Replace with your Telegram chat ID
+
+// Additional Settings
+#define PM2_5_LOW_THRESHOLD 12             // Low pollution threshold for PM2.5
+#define PM2_5_MEDIUM_THRESHOLD 35          // Medium pollution threshold for PM2.5
+
+#endif