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Aaron Mavrinac 03d8ffe30a Add contributing section to README. 3 سال پیش
.gitignore 2feee6c550 Initial commit 3 سال پیش
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README.md 03d8ffe30a Add contributing section to README. 3 سال پیش
application.fam b3cd0e7065 Update application manifest and add icon. 3 سال پیش
gps.c b9269b4257 Improve UI layout. 3 سال پیش
gps_10px.png b3cd0e7065 Update application manifest and add icon. 3 سال پیش
gps_uart.c f5dbde55a4 Initialize time fields to zero. 3 سال پیش
gps_uart.h 60f86aeb33 Add color-coded LED blinks on successful NMEA message parse. 3 سال پیش
minmea.c 8aff5d295e Move sources to root of repository. 3 سال پیش
minmea.h 8aff5d295e Move sources to root of repository. 3 سال پیش
ui.png 27b213dd3d Add UI image. 3 سال پیش
wiring.png f0882961e9 Scale down wiring diagram. 3 سال پیش

README.md

GPS for Flipper Zero

A simple Flipper Zero application for NMEA 0183 serial GPS modules, such as the Adafruit Ultimate GPS Breakout.

ui

Heavy lifting (NMEA parsing) provided by minmea, which is included in this repository.

Hardware Setup

Connect the GPS module to power and the USART using GPIO pins 9 (3.3V), 11 (GND), 13 (TX), and 14 (RX), as appropriate.

wiring

Building the FAP

  1. Clone the flipperzero-firmware repository.
  2. Create a symbolic link in applications_user named gps, pointing to this repository.
  3. Compile with ./fbt fap_gps.
  4. Copy build/f7-firmware-D/.extapps/gps.fap to apps/Tools on the SD card (directly or using qFlipper).

Contributing

This project was a learning exercise and is more or less "complete" from my perspective, but I will happily accept pull requests that improve and enhance the functionality for others.

Currently, the app only parses RMC and GGA sentences, and displays a subset of the data that fits on the screen. The UART is also hard-coded to 9600 baud. These limitations are largely driven by the GPS module I have to work with. A more elaborate UI with scrolling or multiple screens, as well as a configurable baud rate, may be useful for other GPS modules.