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Arduino GPS Tracker with SIM800L and GeoLinker Cloud

Arduino SIM800L GPS GSM License: MIT CircuitDigest

A cost-effective GPS tracking solution built with Arduino UNO R3, SIM800L GSM module, and NEO-6M GPS module using the GeoLinker Lite library.

Arduino GPS Tracker Demo

🚀 Features

  • Real-time GPS tracking with cloud integration
  • Memory optimized for Arduino UNO R3's limited RAM
  • Web dashboard for live location monitoring
  • Historical data logging and CSV export
  • Free cloud platform with no monthly fees

🛠️ Components

  • Arduino UNO R3
  • SIM800L GSM module
  • NEO-6M GPS module
  • Resistors (4.7kΩ, 10kΩ)
  • Breadboard and jumper wires
  • 2G SIM card

📋 Quick Setup

  1. Install Library: Search "GeoLinker Lite" in Arduino IDE Library Manager
  2. Wire Components: Follow the circuit diagram provided
  3. Configure Code: Set your APN, API key, and device ID
  4. Upload & Run: Power with external source recommended

🔌 Key Connections

Component Arduino Pin Notes
GPS TX Pin 0 (RX) Disconnect during upload
SIM800L RX Pin 8 Via voltage divider
SIM800L TX Pin 9 Direct connection
Reset Control Pin 2 Automatic mode switching

⚠️ Important Notes

  • Power: Use a power source with appropriate current capabilities for SIM800L
  • SIM Card: Requires 2G network (Jio won't work - use Airtel, Vi, BSNL)
  • Upload: Keep the GPS TX disconnected from Pin 0 while uploading the code.
  • API Key: Get free API key from GeoLinker Cloud

📚 Documentation

For complete setup instructions, circuit diagrams, code explanation, and troubleshooting, see the full tutorial: Arduino GPS Tracker Tutorial

🔗 Related Links

📄 License

MIT License - see LICENSE file for details.

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