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Small GPS Tracker using arduino

how to make a small gps tracker using arduino pro mini

Prateek 07/07/2023

1 5,175 3 minutes read

Table of Contents

Introduction

In this article, we make a small GPS tracking device using Arduino pro mini. this device includes a Lithium iron battery that provides 3.7v to Arduino Pro mini. you easily track any location when you press the push button the gsm module sends the proper GPS link to the particular mobile number.

Components

Here we used a few components and why I used them in this project that’s I explain it.

Arduino pro mini

Here we used the Arduino Pro mini the controlling the input and output device like when you press the push button the digital signal goes to the digital pin and the response the gsm through after a few second the gsm send the proper text message with GPS location.

Specifications and Features

Operating Voltage: 5V
Clock frequency: 16MHz.
Digital I/O Pins: 14
8 analog input ports: A0 ~ A7.
A pair of TTL-level serial port transceivers: RX / TX.
6 PWM port: D3, D5, D6, D9, D10, D11.
IC Used Atmel Atmega328P-AU microcontroller.
Support serial download.
Support 9V battery.
Package Includes :
1 x Pro mini 5v/16mHZ compatible

GSM SIM800l

Sim800l GSM Module is a small type of gsm module and its operating voltage is 3.7v to 4.4v you used a lithium-ion battery.

GSM is used for sense text messages we just connected the Rx And Tx Pin of Arduino Serail Tx And Rx Pin.
GSM GND Pin connected to the Arduino pro mini GND Pin.
And The VCC Pin is connected to the lithium-ion battery (3.7v) And is important that the GND Pin is connected to the Arduino Pro mini GND Pin.

Sim800l

Features of SIM800L GSM Module

Quad-band 850/900/1800/1900MHz – connect onto any global GSM network with any 2G,3G And 4G SIM (in India, JIO is not supported).
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).

NZ Mini GPS Module

NZ Mini GPS module is also small in size and is better for indoor and outdoor. the operating voltage is 3.7v to 5v you are directly connected to the Arduino Pro min 5v pin.

Pin descriptions

Black: GND

Red: +5V

Blue: TX

Orange: RX

gps

Features

Dimensions: 26 x 25 x 8 mm(LxWxH).
Weight: 10gm.
Cable Length: 15cm.
NZ GPS Suitable for Flight Controller NAZE 32, Interface 1 Pin 2.54.
This GPS is customized for the Naze32 flight controller.
Internal Ublox 7 series chip core of manufacture OEM.
Super mini size
weight only 10g

3.7v Battery

this one is a lithium-ion battery and is perfect for this project and is also sufficient for the SIM800l GSM Module.

Tp4056 Charging Module

TP4056 1A Li-Ion Battery Charging Board with Current Protection is a tiny module, perfect for charging single cell 3.7V 1 Ah or higher lithium-ion (Li-Ion) cells such as 16550s that don’t have their own protection circuit.

tp4056

Specifications

Charging accuracy (%) 1.5
Charging method Linear
Full Charge Voltage (V) 4.2
Over-Current Protection (A) 3
Voltage Protection (V) 2.5
Input Voltage (V) 4.2-5
Rated Power (W) 4
Operating Temperature (°C) -10 to 85

Switch

the sliding switch controls the battery supply if you want then turn on the switch and if you do not want to track the location just turn off the switch.

Push Button

this one is 2 pin push button

Circuit diagram

GSM module connections

VCC pin of the GSM module connected to the 5V pin of the Arduino.
GND pin of the GSM module connected to the GND pin of the Arduino.
TX pin of the GSM module connected to the digital input pin on the Arduino (7).
RX pin of the GSM module connected to the digital output pin on the Arduino (8).

GPS module connections

VCC pin of the GPS module connected to the 5V pin of the Arduino.
GND pin of the GPS module connected to the GND pin of the Arduino.
TX pin of the GPS module connected to the digital input pin on the Arduino (Rx).
RX pin of the GPS module connected to the digital output pin on the Arduino (Tx).

Connect a push button to pin 10 of the Arduino Pro Mini.

Code

TinyGPS.h

Before uploading just Change the number

char phone_no[] = "+91xxxxxxxxxx";

1	char phone_no[] = "+91xxxxxxxxxx";

We Just Add the Library and change the Mobile Number then you upload the Code

//Prateek
//www.justdoelectronics.com

#include <TinyGPS.h>
#include <SoftwareSerial.h>
#include <Wire.h>
SoftwareSerial Gsm(7, 8);
char phone_no[] = "+91xxxxxxxxxx";
TinyGPS gps;
int state;
String textMessage;
void setup() {
  Serial.begin(9600);
  Gsm.begin(9600);
  Serial.print("AT+CMGF=1\r");
  delay(100);
  Serial.print("AT+CNMI=2,2,0,0,0\r");
  delay(100);
  pinMode(10, INPUT);
}

void loop() {
  bool newData = false;
  unsigned long chars;
  unsigned short sentences, failed;
  for (unsigned long start = millis();
       millis() - start < 1000;) {
    while (Serial.available()) {
      char c = Serial.read();
      Serial.print(c);
      if (gps.encode(c))
        newData = true;
    }
  }
  if (Gsm.available() > 0) {
    textMessage = Gsm.readString();
    textMessage.toUpperCase();
    delay(10);
  }
  //Prateek
  //www.justdoelectronics.com
  Serial.println(failed);
}

//Prateek

//www.justdoelectronics.com

#include <TinyGPS.h>

#include <SoftwareSerial.h>

#include <Wire.h>

SoftwareSerial Gsm(7, 8);

char phone_no[] = "+91xxxxxxxxxx";

TinyGPS gps;

int state;

String textMessage;

void setup() {

Serial.begin(9600);

Gsm.begin(9600);

Serial.print("AT+CMGF=1\r");

delay(100);

Serial.print("AT+CNMI=2,2,0,0,0\r");

delay(100);

pinMode(10, INPUT);

}

void loop() {

bool newData = false;

unsigned long chars;

unsigned short sentences, failed;

for (unsigned long start = millis();

millis() - start < 1000;) {

while (Serial.available()) {

char c = Serial.read();

Serial.print(c);

if (gps.encode(c))

newData = true;

}

if (Gsm.available() > 0) {

textMessage = Gsm.readString();

textMessage.toUpperCase();

delay(10);

}

//Prateek

//www.justdoelectronics.com

Serial.println(failed);

}

When You Press the Push Button This Condition Will Happen

state = digitalRead(10);
if (state == 0)
//Prateek
//www.justdoelectronics.com

{
  float flat, flon;
  unsigned long age;
  gps.f_get_position(&flat, &flon, &age);
  Gsm.print("AT+CMGF=1\r");
  delay(400);
  Gsm.print("AT+CMGS=\"");
  Gsm.print(phone_no);
  Gsm.println("\"");
  Gsm.println("Alert I need help.............");
  Gsm.print("http://maps.google.com/maps?q=loc:");
  Gsm.print(flat == TinyGPS::GPS_INVALID_F_ANGLE ? 0.0 : flat, 6);
  Gsm.print(",");
  Gsm.print(flon == TinyGPS ::GPS_INVALID_F_ANGLE ? 0.0 : flon, 6);
  delay(200);
  Gsm.println((char)26);
  //Prateek
  //www.justdoelectronics.com

  delay(200);
  Gsm.println();
  Serial.println("SMS Sent");

  Serial.println("Call");
  delay(20000);
  Gsm.println("ATD+91xxxxxxxxxx;");
  delay(150000);
  Gsm.println("ATH");
  delay(1000);

} else {
  delay(10);
}

state = digitalRead(10);

if (state == 0)

//Prateek

//www.justdoelectronics.com

{

float flat, flon;

unsigned long age;

gps.f_get_position(&flat, &flon, &age);

Gsm.print("AT+CMGF=1\r");

delay(400);

Gsm.print("AT+CMGS=\"");

Gsm.print(phone_no);

Gsm.println("\"");

Gsm.println("Alert I need help.............");

Gsm.print("http://maps.google.com/maps?q=loc:");

Gsm.print(flat == TinyGPS::GPS_INVALID_F_ANGLE ? 0.0 : flat, 6);

Gsm.print(",");

Gsm.print(flon == TinyGPS ::GPS_INVALID_F_ANGLE ? 0.0 : flon, 6);

delay(200);

Gsm.println((char)26);

//Prateek

//www.justdoelectronics.com

delay(200);

Gsm.println();

Serial.println("SMS Sent");

Serial.println("Call");

delay(20000);

Gsm.println("ATD+91xxxxxxxxxx;");

delay(150000);

Gsm.println("ATH");

delay(1000);

} else {

delay(10);

}

Project working demo

Here is a few photos of how the project will work see when I press the push button then after a few second the mobile received a text message with GPS Coordinates.

see the all hardware part which one we used for the projects, this one is relay working well and is used in various fields.

if GPS does not get the proper signal then go outside wait for a few seconds and when GPS blue light is blynk then the GPS get the signal and is working properly.

Video

More GPS Tracker Projects

Build Your Smart GPS Tracker

Small GPS Tracker using arduino

how to make a small gps tracker using arduino pro mini

Introduction

Components

Arduino pro mini

GSM SIM800l

NZ Mini GPS Module

3.7v Battery

Tp4056 Charging Module

Switch

Push Button

Circuit diagram

Code

Project working demo

Video

Prateek

One Comment

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Introduction

Components

Arduino pro mini

GSM SIM800l

NZ Mini GPS Module

3.7v Battery

Tp4056 Charging Module

Switch

Push Button

Circuit diagram

Code

Project working demo

Video

Prateek

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One Comment

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