Smart Vehicle Accident Detection and Emergency Alert System Using LPC1768

Published Jun 30, 2026

Apache-2.0

15 hours to build

Intermediate

"When every second matters, our system doesn't wait" Powered by the LPC1768, it instantly detects vehicle collisions, pinpoints your location via GPS, and fires emergency alerts to rescue teams — all automatically, before anyone even reaches for their phone.

Components Used
1. LPC1768 Microcontroller The LPC1768 is an ARM Cortex-M3 based microcontroller that serves as the main controller of the system. It processes sensor data, detects accidents, controls peripherals, and manages communication between GPS and GSM modules.	X 1
2. Accelerometer Sensor (ADXL335/ADXL345) The accelerometer sensor measures acceleration, vibration, and tilt of the vehicle. It detects sudden impacts or abnormal movements that may indicate an accident.	X 1
3. GPS Module (NEO-6M) The GPS module provides real-time geographic coordinates such as latitude and longitude. It helps identify the exact accident location and shares it with emergency contacts.	X 1
4. GSM Module (SIM800L/SIM900A) The GSM module is used to send SMS alerts to predefined emergency contacts. It transmits accident information along with the vehicle location.	X 1
5. 16x2 LCD Display The LCD display shows system status messages such as "Vehicle Safe," "Accident Detected," and GPS/GSM operation details for user monitoring.	X 1

Description

Step 1: Collect Components
Gather the LPC1768 board, Accelerometer Sensor, GPS Module, GSM Module, LCD Display, Buzzer, Power Supply, and connecting wires.

step 2 : Connect the accelerometer

Connect the accelerometer sensor to the LPC1768 to monitor vehicle movement, vibration, and tilt.

Step 3: Connect the GSM Module

Connect the GSM module to the LPC1768. This module will send emergency SMS alerts when an accident is detected.

2 .

Step 4: Write the Program

Develop the Embedded C program in Keil uVision to:

- Read accelerometer data
- Detect accidents
- Get GPS coordinates
- Send SMS through GSM
- Update LCD messages
- Activate the buzzer

Step 5: Test Accident Detection

Simulated by using the keil IDE and flashed our program using the Flash memory

Here we have explained our project in video demonstration!! https://youtu.be/VLI6xA0tySI?si=w07H5fvMSXODtFPz

Codes

Downloads
	Report2	Download

Credit

Kavipriya K
2 Projects

Praveena I
2 Projects

Guide / Mentor

Smart Vehicle Accident Detection and Emergency Alert System Using LPC1768

Components Used

Downloads

Institute / Organization