 Arduino Location Tracker using SIM800L GSM Module and NEO-6M GPS Module

GPS Neo-6m Module

SIM800L

Breadboard wire bundle

[HB] Resistors kit 

Arduino Uno R3 compactable

arduino IDE cloud

Jumper wires (Male to Female)

<html><body><h3><h3><h3> Arduino Location Tracker using SIM800L GSM Module and NEO-6M GPS Module</h3><p>This project implements a sophisticated location monitoring solution by integrating the NEO-6M GPS module with SIM800L GSM technology on an Arduino Uno platform. The system captures precise GPS coordinates using satellite triangulation, processes the data through the Arduino's microcontroller, and transmits real-time location updates via 2G cellular networks. By leveraging AT commands for GSM communication and NMEA protocol parsing for GPS data extraction, the tracker achieves sub-10-meter accuracy while maintaining low power consumption. The embedded system features automated SMS alerts, remote query capabilities, and can be easily integrated with web-based mapping APIs for comprehensive asset tracking applications. This IoT-enabled solution demonstrates practical implementation of embedded systems, wireless communication protocols, and geolocation services in a compact, cost-effective package suitable for vehicle tracking, personal safety devices, or remote asset monitoring applications. </p></h3></h3><h3><strong>Key Technical Features:</strong></h3><p>Real-time GPS coordinate acquisition, GSM/GPRS data transmission, Arduino-based embedded control, UART serial communication, and scalable IoT architecture. </p><h3><strong>Components Required </strong></h3><ol><li><strong>Arduino Uno R3 DIP 	</strong></li><li><strong>SIM800L GSM module	</strong></li><li><strong>NEO-6M GPS Module	</strong></li><li><strong>Breadboard	</strong></li><li><strong>Resistors </strong></li><li><strong>Jumper wires</strong></li></ol><h3><strong> </strong>Circuit Diagram</h3><h3></h3><figure><img src="https://projects.arduinocontent.cc/9956c252-eeb7-4392-967b-7d0c50a3baaa.png"/><figcaption>Arduino GPS Tracker Circuit Diagram</figcaption></figure><h3><strong>System Architecture</strong></h3><p>NEO-6M GPS Module → Captures satellite coordinates</p><p>Arduino UNO R3 → Processes GPS data and controls communication</p><p>SIM800L GSM Module → Transmits location data via 2G cellular network</p><p>GeoLinker Cloud → Stores and displays tracking data online</p><h3><strong>Key Operating Principle</strong></h3><p>1. GPS Data Acquisition</p><p>NEO-6M continuously receives satellite signals and outputs NMEA-formatted location data</p><p>Arduino reads this GPS data through serial communication (Pin 0)</p><p></p><p>2. Data Processing &amp; Mode Switching</p><p>Due to Arduino UNO's limited 2KB RAM, the system uses automatic mode switching</p><p>Pin 2 connected to RST enables switching between GPS mode and GSM mode</p><p>This prevents memory corruption from handling both GPS parsing and GSM HTTP requests simultaneously</p><p></p><p>3. Cellular Transmission</p><p>SIM800L connects to a 2G network using carrier APN settings</p><p>Location data gets transmitted to the GeoLinker Cloud platform via GPRS</p><p>The system includes retry mechanisms for failed transmissions</p><p></p><p>4. Cloud Integration</p><p>GeoLinker Lite library handles all communication protocols</p><p>Data appears on the CircuitDigest Cloud dashboard for real-time tracking</p><p>Supports up to 100,000 data points per free account</p><p></p><h3><strong>Critical Technical Details</strong></h3><p>Power Requirements:</p><ol><li>Must use external power supply (power bank/5V adapter)</li><li>SIM800L draws up to 2A during transmission - USB ports are insufficient</li></ol><p></p><p>Voltage Level Protection:</p><ol><li>SIM800L operates at 3.3V, Arduino at 5V</li><li>Voltage divider circuit protects SIM800L from damage</li><li>Diode drops Arduino 5V to ~4.3V for SIM800L power</li></ol><p></p><p>Memory Management:</p><ol><li>Custom GeoLinker Lite library optimised for a 2KB RAM constraint</li><li>The automatic reset system prevents memory overflow</li><li>Single-mode operation (GPS OR GSM, never both simultaneously)</li></ol><p><strong>For more Technical information, you can check our source on </strong><a href="https://circuitdigest.com/microcontroller-projects/arduino-gps-tracker-using-sim800l-and-neo-6m"><strong>Arduino GPS Tracker</strong></a><strong>.</strong></p><h3><strong>Real-World Applications</strong></h3><ol><li>Vehicle tracking and fleet management</li><li>Personal safety devices</li><li>Asset monitoring for remote equipment</li><li>IoT location services</li></ol><p> </p><figure><iframe src="https://youtu.be/IEbFpwqCFJg"></iframe></figure><p> </p></body></html>

Arduino GPS Tracker

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Arduino Location Tracker using SIM800L GSM Module and NEO-6M GPS Module

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