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SparkFun LTE GNSS SARA-R5 Breakout Board is designed for u-blox’s SARA-R510M8S LTE-M / NB-IoT module. The u-blox SARA-R5 Series LTE-M/NB-IoT Modules are secure cloud LTE Cat M1 and LTE Cat NB2 solutions based on the UBX-R5 cellular chipset. These modules deliver high-performance satellite positioning with data connectivity in the tiny and compact SARA form factor. The UBX-R5 chipset supports many different forms of data communication from full TCP/IP sockets and packet-switched data through HTTP Get/Put/Post, FTP (the SARA has a built-in file system), Ping, and SMS text messaging. The built-in u-blox M8 GNSS receiver offers accurate and reliable positioning with a separate GNSS antenna interface for an external antenna. Both the GNSS antenna and LTE connections are made via a pair of SMA connectors.
The SparkFun LTE GNSS SARA-R5 Breakout Board routes nearly all functional pins on the SARA-R510M8S module to user interfaces (USB or plated-through hole). The SARA-R5 UART interface can be configured into one of five variants, providing connectivity over one or two UARTs. A separate USB port provides access to the SARA’s trace log for diagnostic purposes. The Board allows access to all three interfaces (UART1, UART2, and SARA Diag) via three separate USB-C connections. All eight 3.3V serial signals are available on a 0.1″-pitch breakout header. Separate 0.1″-pitch headers break out the SARA’s I2C bus, power pins as well as GPIO pins for various functionalities.
