GPS tracker

This project consists of (a) an Arduino board collecting GPS coordinates and sending them to the web server and (b) a Django application storing and displaying location data.

Hardware

• Arduino Mega 2560: amazon
• GY-NEO6MV2 GPS module: amazon
• SIM800L EVB GSM module: amazon + micro SIM card with data connection
• Micro SD card module: amazon + micro SD card
• 2A 5V power supply, e.g. a powerbank

Wiring

GY-NEO6MV2 pin	Connected to
VCC	5V power supply
RX	GND
TX	Arduino pin 17 (Serial2 RX pin)
GND	GND

SIM800L EVB pin	Connected to
5VIN	5V power supply
GND	GND
TXD	Arduino pin 19 (Serial1 RX pin)
RXD	Arduino pin 18 (Serial1 TX pin)

Micro SD pin	Connected to
CS	Arduino pin 53
SCK	Arduino pin 52
MOSI	Arduino pin 51
MISO	Arduino pin 50
VCC	Arduino 5V pin
GND	GND

Installation

Arduino

• Install libraries listed in arduino/libraries.txt:
  • Metro: https://github.com/thomasfredericks/Metro-Arduino-Wiring
  • TinyGPS+: https://github.com/mikalhart/TinyGPSPlus
• cd arduino/track; cp settings.cpp.template settings.cpp and set correct values in settings.cpp

Django

Settings files are located in web/track/settings/.

Usage

• Go to the website, create account, log in and create a device
• Copy the generated API key to api_key in arduino/track/settings.cpp
• Upload track.ino sketch to Arduino
• Go to the device page and have a look at the data collected

Power consumption

The whole setup draws around 200 mA on average, out of which 80 mA is drawn by the Arduino board.

Future work

• HTTPS
• Timestamps in user timezone