ESP8266 GPS Tracker with SIM900 + Flask Map

This project tracks GPS coordinates using an ESP8266 + GPS module and sends them over GSM (SIM900/SIM800) or mesh Wi-Fi to a Flask server. The server displays the live route on an interactive Leaflet map.

🚀 Features

• ESP8266 reads GPS data (NEO-6M)
• Sends data via SIM900 (GPRS HTTP POST) or ESP mesh
• Flask server stores route coordinates
• Leaflet map (index.html) displays markers & routes
• Time filter UI for selecting journey segments

📂 Repo Structure

• arduino/ – ESP8266 Arduino sketches
• server/ – Flask + test client
• web/ – Leaflet-based map UI
• schematics/ – Block diagrams of wiring

🛠 Hardware

• ESP8266 (NodeMCU / Wemos D1 mini)
• SIM900 / SIM800 GSM module (4.0–4.2V supply, ≥2A peak)
• GPS module (NEO-6M / BN-880)
• Common ground + proper power regulation