Arduino Projects

Vehicle Accident Alert System Using Accelerometer

Vehicle Accident Alert Using Accelerometer GPS And GSM


In This Article, we design a Vehicle Accident Alert System using an ADXL-335 Sensor, Measuring the Impact of the Accident And giving information on which side More Impact happened if crosses the threshold value and then sending an SMS with proper GPS coordinates

Vehicle Accident Alert System Using Accelerometer13


Bill Of Materials




Link To Buy


Arduino nano



ADXL345 Module



SIM800l GSM Module



NEO-6m Module



LM2596 Step Down Conveter



Push Button



10k resister



Zero PCB



3.7v lithium-Ion Battery 



Vehicle Accident Alert System Using Accelerometer25

Arduino Nano

  • The Arduino Nano is the open-source smallest Embedded Development board based on Atmega328 SMD Package Microcontroller.
  • Arduino Nano is a low-cost microcontroller and so many GPIO Pin available.

Medicine Reminder With Arduino0


This module can be used to sense motion (in the case of non-moving) in 3 axes. This is the latest in a long, proven line of Analog Sensors- the holy grail of accelerometers.

ADXL335 Sensor1


  • ADXL335: 3-axis sensing.
  • Small, low-profile package.
  • Low power: 350 μA.
  • Single-supply operation: 1.8 V to 3.6 V.
  • Excellent temperature stability.
  • BW adjustment with a single capacitor per axis.
  • RoHS/WEEE is lead-free compliant.

SIM800l GSM Module

You can communicate with the SIM800l module via the UART port, which supports the AT command.



  • Quad-band 850/900/1800/1900MHz – connect to any global GSM network.
  • Make and receive voice calls using a headset or an external 8Ω speaker and electret microphone.
  • AT command interface with “auto baud” detection.
  • Send and receive SMS messages.
  • Send and receive GPRS data (TCP/IP, HTTP, etc.).

LM2596 Step Down Conveter

LM2596 DC-DC Buck Converter Adjustable Step-Down Power Supply Module is this project we used the provide proper 3.7v to sim800l GSM Module.


NEO-6m Module

The GPS module is based on the NEO-6M. This unit uses the latest technology to give the best possible positioning information and includes a larger built-in 25 x 25mm active GPS antenna with a UART TTL socket.

Components0 2


  • 5Hz position update rate
  • Operating temperature range: -40 TO 85°CUART TTL socket
  • EEPROM to save configuration settings
  • Rechargeable battery for Backup
  • Supply voltage: 3.3 V to 5V.
  • Configurable from 4800 Baud to 115200 Baud rates.

Circuit diagram

In this circuit, we show the proper pin where we conected the modules.

Circuit Diagram2 2

  • Like, the GPS Module is conected to Pin Numbers D9, and D8 in Arduino nano microcontroller.
  • Sim800l GSM Module is conected to the D2 And D3 Pin of Arduino Nano.
  • ADXL-335 Sensor is conected to the PIN Numbers A0, A1, and A2.
  • And We used the One Push Button And is conected to the Pin Number D11.



Before you Upload the code install the TinyGPS library in your Arduino IDE Software.

With 16×2 LCD Display

Liquid Crystal I2C Library

GitHub e1697076839430Working Module

Here We Used The ADXL-345 Sensor if any impact is detected and crosses the set threshold value then it sends the proper GPS Location.

Vehicle Accident Alert System Using Accelerometer4 scaled e1705199868134

  • If Any Emergency we press the push button and then also send the SMS “Emergency Alert” And Proper GPS Location.

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  • If We Click the location Link the Automatic Google MAP Software Is open is track where the Person is Available.

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  • In this project, we designed the Vehicle Accident Alert System and it works fine But if you try to use another GSM Module then you also use it same case in the GPS Module. if you change it is not required to change the code.
  • I hope you Like This project plz share it With your Friends and if you have any doubts then plz comment we try to solve the problem.

Vehicle Accident Alert System


Hi, Prateek Here I’m interested in Electronics That's why I Make Soo Many Projects, I’m currently Pursuing M Tech.. if you Relay Like To My Blog Plz Comment Below...Thanks To All Electronics Lover...❤️

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