u-blox C030-R3121 IoT Starter Kit

The u-blox C030-R3121 LTE Cat-1 mbed-enabled Internet of Things (IoT) Starter Kit is a versatile development platform that allows quick prototyping of a variety of applications for low-power Internet of Things (IoT).

Pinout¶

Features¶

u-blox LARA-R3121 Cat-1 Module¶

• State of the art u-blox Matterhorn Cellular Baseband and GNSS chip with RF Front End
  • LTE Cat-1 coverage
  • LTE Bands: 3, 7 and 20
  • Concurrent GNSS Receiver, up to 3 GNSS technology out of GPS, Galileo, GLONASS, and BeiDou

STMicroelectronics STM32F437VG MCU¶

• High-performance ARM® Cortex™-M4 running up to 180MHz
• 1024 KB on-chip Flash
• 256 KB on-chip SRAM + 4 KB Battery backed up on-chip SRAM
  • 192 KB of on-chip SRAM for Application use
  • 64 KB of on-chip SRAM as Closely Coupled Fast RAM
• 10/100 Mbps Ethernet MAC
• Cryptographic acceleration for Internet message protocols
• True random number generation, CRC calculation unit

Interfaces and Electrical Data¶

• Micro-SIM Holder for LTE Cat-1 Network SIMs
• On-board ST-Link/V2-1 debugger/programmer with SWD connector
  • micro USB with mbed Interface
  • ST-Link/V2-1 standalone development and debug capability
  • USB re-enumeration; Virtual COM port, Mass Storage Device and Debug Port
  • 5V from ST-Link/V2-1 Debug USB VBUS, 3.3V operation
  • (CMSIS-DAP variant of the FW with extended features will be available in the future)
• On-board TI® bq24295 Single Cell LiPo Battery Charger and TI® bq27441-G1 Battery Fuel Gauge
  • Molex® SPOX™ 5268-03A LiPo Battery connector. Supports battery types like BAK –LP-503759-IS-3 (battery is not included)
• On-board SiLabs® CP2105 USB to Dual UART Bridge as Serial USB Sniffer
  • Alternative to ST-Link/V2-1 Virtual COM Port when ST-LINK/V2-1 is not used/available
  • Alternative to Main Supply and Debug USB 5V VBUS inputs
  • Sniffing serial communication between the Host MCU and the Cellular Module
  • Drivers could be downloaded from here
• RGB User LED, and two push buttons: User and Reset
• SDCard Socket for file storage
• SMA RF connectors for 50 Ohm Cellular and GNSS Active antennas
• Ethernet RJ45 connector
• Arduino® UNO R3 compatible header connector with
  • 6 analog inputs,
  • 8 PWM capable outputs,
  • 22 GPIOs,
  • 1 x SPI,
  • 1 x I2C,
  • 1 x UART with HW flow control option (RTS, CTS)

International Data Roaming by JT¶

The C030-U201 IoT Starter Kits come with International Data Roaming bundled with 50 MBytes of data for the first 3 months .

The International Data Roaming service is provided by JT . To turn on the International Data Roaming service, please register your board's eUICC(Embedded SIM) IMSI through JT IoT Registration web site.

Block Diagram¶

Power Supply and LiPo Battery¶

During the RF transactions, LARA-R3121 module of C030-R3121 Application Board demands higher currents than a USB 2.0 Master Port could provide. If the C030-R3121 Application Board is powered from a single USB 2.0 port, a Brown Out could be experienced during RF transactions. This situation is observed as premature board reset and/or application interruption. To overcome such situation, the C030-R3121 Application Board could be powered with a high current PSU through purpose built "Aux 5V USB" connector. Also, connect a LiPo battery to the "LiPo Battery Connector" to handle current peaks.

Recommended 3A 5V USB Power Supplies for the UK , the North America, and the Europe

Recommended LiPo Battery BAK –LP-503759-IS-3 from Farnell UK, Farnell Germany

Documentation¶

Will be available soon

See also¶

C030 Getting started

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