GPS data logger with SD card

cults3d

I wanted to have a GPS data logger that I can record data for my hiking trail then import it to Google map with KLM file format. Required components 1. Micro SD Card Breakout Boardhttps://learn.adafruit.com/adafruit-micro-sd-breakout-board-card-tutorial/introduction Arduino Pro Microhttps://www.sparkfun.com/products/12640 GPS module ATGM336H GPS, small size with external antenna, see attached image. Other models would work but you might need to adjust the Arduino sketch. 128 x 32 OLED i2 c module Available from Alipress, the case is designed to fit the module I have, so adjust the design and fit your own OLED. Hook up guide GPS to Arduino Pro Micro: GPS Module RX-> Pin 09 GPS Module TX-> Pin 08 OLED with i2C to Arduino Pro Micro: SDA->Pin02 SCL->Pin03 SD Module to Arduino Pro Micro: CLK->Pin15 MISO(DO)->Pin14 MOSI(DI)->Pin16 CS->Pin10 All the GND pin goes to GND Power pin goes to VCC on the Arduino 2020/Feb/13 **Still working in progress Case printed. All parts soldered and fitted into the box, tight fit, make sure you have short cable and cover the GPS module with heat shrink tube as it is not snugged anywhere in the box. The SDcard and Arduino snugged fit. Sketch verified working and GPS location printed correctly on OLED Next step: 1. Tidy up code and post to sketch Further optimization of code, reduce update frequency if possible to save battery usage Extract more data from the GPS, as of now I am only extracting 3.1 Latitude 3.2 Longitude 3.3 Time 3.4 # of locked satellite Ideally, we should also get altitude, ground speed and etc.