M5Cardputer GPS Logger

This project is a GPS logger using the M5Cardputer platform. It reads GPS data, displays it on the screen, and optionally saves the data to an SD card. The device operates in two modes: NORMAL mode and SLEEP mode. The SLEEP mode conserves power while still logging GPS data.

• NORMAL: Displays the GPS data on the screen every 3 seconds while saving the GPS data to the SD card every minute (can be turned off).

• SLEEP: Saves the GPS data to the SD card every minute before entering light sleep mode. The Cardputer's screen is turned off, and it appears to be OFF.

Installation

• M5Burner : Search into M5CARDPUTER section and simply burn it
• Old school : Build or take the firmware.bin from the github release and flash it

Usage

• You will need a UART GPS module connected to the M5Cardputer and an inserted SD card. This has been tested with the Grove GPS module

• Select NORMAL or SLEEP mode

• The GPS data will be saved in the file gps_data.csv at the root of the SD card.

Controls

For NORMAL mode

• OK Toggles SD card on/off.
• S Toggles screen on/off.
• - and = Adjusts brightness.