Arduino library to support the X-NUCLEO-GNSS1A1 expansion board using the TESEO-LIV3F module
This device uses alternatively I2C or UART to communicate. An I2C or UART instance is required to access the device.
There are 5 examples with the X-NUCLEO-GNSS1A1 library.
X_NUCLEO_GNSS1A1_HelloWorld_I2C: This example code provides a simple command line interface to communicate with the sensor via I2C protocol
X_NUCLEO_GNSS1A1_HelloWorld_UART: This example code provides a simple command line interface to communicate with the sensor via UART protocol
X_NUCLEO_GNSS1A1_MicroNMEA_I2C: This example code shows how to communicate with the sensor via I2C protocol using the lightweight Arduino MicroNMEA library.
X_NUCLEO_GNSS1A1_MicroNMEA_UART: This example code shows how to communicate with the sensor via UART protocol using the lightweight Arduino MicroNMEA library.
X_NUCLEO_GNSS1A1_VirtualCOMPort: This example code should be uploaded to the board in order to perform a firmware upgrade using the Flash Updater java application.
The X-NUCLEO-GNSS1A1 library requires the following Arduino library:
In order to perform the firmware upgrade, the following Java application should be used:
The device works only in an outdoor enviroment with a clear view of the sky. In order to prevent data loss the update function used in the HelloWorld examples should be called at least 20 times per second. Both the HelloWorld examples need at least 16KB of RAM in order to work properly. The RAM requirements for the MicroNMEA examples depend on the board architecture and can vary from 1KB to 3KB.
You can find the source files at
https://github.com/stm32duino/X-NUCLEO-GNSS1A1
The TESEO-LIV3F datasheet is available at
https://www.st.com/content/st_com/en/products/positioning/gnss-modules/teseo-liv3f.html
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