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43 lines
1.5 KiB
Markdown
43 lines
1.5 KiB
Markdown
# GPS for Flipper Zero
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A simple Flipper Zero application for NMEA 0183 serial GPS modules, such as the
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[Adafruit Ultimate GPS Breakout].
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Heavy lifting (NMEA parsing) provided by [minmea], which is included in this
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repository.
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## Hardware Setup
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Connect the GPS module to power and the USART using GPIO pins 9 (3.3V), 11
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(GND), 13 (TX), and 14 (RX), as appropriate.
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## Building the FAP
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1. Clone the [flipperzero-firmware] repository.
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2. Create a symbolic link in `applications_user` named `gps`, pointing to this
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repository.
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3. Compile with `./fbt fap_gps`.
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4. Copy `build/f7-firmware-D/.extapps/gps.fap` to `apps/Tools` on the SD card
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(directly or using [qFlipper]).
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## Contributing
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This project was a learning exercise and is more or less "complete" from my
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perspective, but I will happily accept pull requests that improve and enhance
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the functionality for others.
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Currently, the app only parses RMC and GGA sentences, and displays a subset of
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the data that fits on the screen. The UART is also hard-coded to 9600 baud.
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These limitations are largely driven by the GPS module I have to work with. A
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more elaborate UI with scrolling or multiple screens, as well as a configurable
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baud rate, may be useful for other GPS modules.
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[Adafruit Ultimate GPS Breakout]: https://www.adafruit.com/product/746
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[minmea]: https://github.com/kosma/minmea
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[flipperzero-firmware]: https://github.com/flipperdevices/flipperzero-firmware
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[qFlipper]: https://flipperzero.one/update
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