SLTB001A Silicon Labs

UG250: Thunderboard Sense User s Guide The Thunderboard Sense is the ultimate multi-sensor, multi- KEY POINTS protocol cloud inspiration kit. EFR32 Mighty Gecko Wireless SoC The board is a small and cost effective, feature rich, prototype and development plat- Fine grained power-control for ultra low form based on the EFR32 Mighty Gecko Wireless System-on-Chip. The Thunder- power operation board Sense is an ideal platform for developing energy-friendly connected IoT devices. 2.4 GHz ceramic chip antenna This is a true multi-protocol capable kit, supporting proprietary stacks and standard pro- tocols such as Zigbee, Thread and Bluetooth low energy. Six sensors and four high brightness controllable RGB LEDs The Thunderboard Sense ships with a ready to use Bluetooth demo that works with a User LEDs/pushbuttons cloud connected smartphone app, showcasing easy collection of environmental and 8-Mbit Flash for OTA programming motion sensor data. SEGGER J-Link on-board debugger A built in SEGGER J-Link debugger ensures easy customization and development. Virtual COM Port Mini Simplicity connector for AEM and packet trace using external Silicon Labs debugger 20-pin 2.54 mm breakout pads Power sources include USB, coin cell and external batteries ON-BOARD SENSORS Relative humidity and temperature sensor UV index and ambient light sensor Indoor air quality gas sensor 6-axis inertial sensor Barometric pressure sensor MEMS microphone SOFTWARE SUPPORT Simplicity Studio Energy Profiler Network Analyzer silabs.com Building a more connected world. Rev. 1.1 Not Recommended for New DesignsTable of Contents 1. Introduction................................4 1.1 Kit Contents ..............................5 1.2 Hardware Content ............................5 1.3 Kit Hardware Layout............................5 2. Specifications...............................6 2.1 Absolute Maximum Ratings .........................6 2.2 Recommended Operating Conditions......................6 2.3 Current Consumption ...........................7 3. Hardware.................................9 3.1 Block Diagram..............................9 3.2 Power Supply..............................10 3.3 EFR32 Reset..............................11 3.4 Peripheral Power Domains .........................11 3.5 Sensors................................11 3.5.1 Si7021 Relative Humidity and Temperature Sensor ...............12 3.5.2 Si1133 UV Index and Ambient Light Sensor..................13 3.5.3 BMP280 Barometric Pressure Sensor....................14 3.5.4 CCS811 Indoor Air Quality Gas Sensor ...................15 3.5.5 ICM-20648 6-Axis Inertial Sensor .....................16 3.5.6 SPV1840 MEMS Microphone ......................17 3.6 LEDs.................................18 3.6.1 RGB LEDs.............................18 3.6.2 Low power red/green LED........................19 3.7 Push Buttons..............................19 3.8 Memory................................19 3.9 On-board Debugger............................20 3.10 Connectors ..............................20 3.10.1 Breakout Pads ...........................21 3.10.2 Mini Simplicity Connector .......................22 3.10.3 USB Micro-B Connector........................22 3.10.4 Battery Connector..........................22 4. Debugging ............................... 23 4.1 On-board Debugger............................23 4.2 Virtual COM Port.............................24 4.3 Mini Simplicity Connector..........................24 5. Power and Interrupt Controller........................ 25 5.1 Communication .............................25 5.2 Register Map..............................26 silabs.com Building a more connected world. Rev. 1.1 2 Not Recommended for New Designs