UG309: Thunderboard Sense 2 User's Guide
The board is a small and cost-effecitve, feature-rich prototype and development plat-form based on the EFR32™ Mighty Gecko Wireless System-on-Chip. The Thunderboard Sense 2 is an ideal platform for developing energy-friendly connected IoT devices. This is a true multiprotocol capable kit, supporting proprietary stacks and standard protocols such as Zigbee, Thread and Bluetooth® low energy.
The Thunderboard Sense 2 ships with a ready-to-use Bluetooth demo that works with acloud connected smartphone app, showcasing easy collection of environmental andmotion sensor data.
A built in SEGGER J-Link debugger ensures easy customization and development.
KEY POINTS:
• EFR32MG12 Mighty Gecko Wireless SoCwith 38.4 MHz operating frequency, 1024kB flash and 256 kB RAM
• 2.4 GHz ceramic chip antenna
• Fine-grained power-control for ultra-low-power operation
• Seven sensors and four high brightnesscontrollable RGB LEDs
• User LEDs/pushbuttons
• 8-Mbit flash for OTA programming anddata logging
• SEGGER J-Link on-board debugger
• Virtual COM port
• Packet Trace
• Mini Simplicity connector for connectionto an external Silicon Labs debugger
• 20-pin 2.54 mm breakout pads
• Power sources include USB, coin cell andexternal batteries
The Thunderboard Sense 2 has been designed to inspire customers to make battery operated IoT devices with the Silicon LabsEFR32MG12 Mighty Gecko Wireless System-on-Chip. The highlights of the board include seven different environmental sensors andfour high brightness RGB LEDs accessible to the EFR32MG12 wireless MCU. The sensors and LEDs have been grouped into powerdomains that can be turned on and off by the application code as needed. By default, the board starts up in the lowest power operatingmode, with all sensors disabled.
Programming the Thunderboard Sense 2 is easily done using a USB Micro-B cable and the on-board J-Link debugger. A USB virtualCOM port provides a serial connection to the target application. Included on the board is an 8 Mbit serial flash that can be used forOver-The-Air (OTA) firmware upgrade, or as a general purpose non-volatile memory. The Thunderboard Sense 2 is supported in Sim-plicity Studio™, and a Board Support Package (BSP) is provided to give application developers a flying start.
Energy profiling and advanced wireless network analysis and debugging tools are available through the provided Mini Simplicity Con-nector using an external Silicon Labs debugger. See AN958: Debugging and Programming Interfaces for Custom Designs for more in-formation about debugging and programming interfaces that can be used with Silicon Labs' starter kits.
Connecting external hardware to the Thunderboard Sense 2 can be done using the 20 breakout pads which present peripherals fromthe EFR32MG12 Mighty Gecko such as I2C, SPI, UART and GPIOs. The breakout pads follow the same pinout as the expansion head-ers (EXP) on other Silicon Labs Starter Kits
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ultimate multi-sensor, multi-protocol cloud inspiration kit 、 Mighty Gecko Wireless System-on-Chip 、 Mighty Gecko Wireless SoC |
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User's Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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August, 2020 |
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Rev. 1.1 |
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UG309 |
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2 MB |
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