A cost-effective GPS tracking solution built with Arduino UNO R3, SIM800L GSM module, and NEO-6M GPS module using the GeoLinker Lite library.
🚀 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
Install Library: Search “GeoLinker Lite” in Arduino IDE Library Manager
Wire Components: Follow the circuit diagram provided
Configure Code: Set your APN, API key, and device ID
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
Power: Use a power source with sufficient current for SIM800L (≥2A peak).
SIM Card: Only works on 2G (Airtel, Vi, BSNL — Jio not supported).
Upload: Disconnect GPS TX from Pin 0 while uploading.
API Key: Get your free API key from GeoLinker Cloud .
📚 Documentation
For complete setup, circuit diagrams, and troubleshooting: 👉 Arduino GPS Tracker Tutorial
🔗 Related Links
GeoLinker Lite Library
GeoLinker Cloud Platform
ESP32 GPS Tracker