GPS data logger with SD card

cults3d

I wanted to develop a GPS data logger that can record trail data for my hiking adventures then export it to Google Maps in KML format. Required Components 1. Micro SD Card Breakout Board: I used the Adafruit Micro SD Breakout Board - A handy tool for accessing microSD cards in your projects. 2. Arduino Pro Micro: This tiny board is perfect for small, low-power applications like my GPS logger. 3. ATGM336H GPS Module: With its compact size and external antenna, this module fits perfectly into my case design. Here's a Hook-Up Guide to get you started: GPS Module to Arduino Pro Micro: - RX Pin -> Pin 9 - TX Pin -> Pin 8 OLED with i2C to Arduino Pro Micro: - SDA -> Pin 2 - SCL -> Pin 3 SD Module to Arduino Pro Micro: - CLK -> Pin 15 - MISO (DO) -> Pin 14 - MOSI (DI) -> Pin 16 - CS -> Pin 10 All GND pins connect to the GND pin on the Arduino, while power goes to VCC. 2020/February/13: Still a work in progress. I've printed the case and soldered all components into place. The SD card and Arduino fit snugly inside, but be sure to use short cables and cover the GPS module with heat shrink tubing for a secure fit. The sketch has been verified, and GPS locations are now printing correctly on the OLED display. Next Steps: 1. Clean up the code and post it online. 2. Optimize the code further, aiming to reduce update frequency and conserve battery life. 3. Extract more data from the GPS module, including altitude, ground speed, and other relevant metrics beyond latitude, longitude, and time.