3D Model: ESP32/ESP8266 (NodeMCU) – Microcontroller For Data Processing And IoT Connectivity. DHT11 Sensor – Measures Temperature And Humidity. MPU6050 – Accelerometer + Gyroscope For Motion And Tilt Detection. GPS Module (NEO-6M) – Provides Latitude, Longitude, Speed, And UTC Time. GSM Module (SIM800L/SIM900A) – Enables SMS/call Alerts For Remote Monitoring. 16x2 LCD With I2C Interface – Displays Real-time Sensor And GPS Data. Power Supply & Custom PCB – Provides Regulated Voltage To All Modules. Connecting Wires And Breadboard/PCB – For Circuit Assembly Create A 3D Boat On This Topic IoT BASED ACCIDENT DETECTION SYSTEM FOR BOATS Using The All Components But MPU6050 Is Placed Under The Boat It Must Me Visible