SLTB010A

UG415: Thunderboard EFR32BG22 User s Guide The Thunderboard EFR32BG22 is a low cost, small form factor TARGET DEVICE prototype and development platform for the EFR32BG22 Wireless Gecko System-on-Chip. EFR32 Wireless Gecko System-on-Chip (EFR32BG22C224F512IM40) The board is a small and cost effective, feature rich, prototype and development platform 32-bit ARM Cortex-M33 with 76.8 based on the EFR32 Wireless Gecko System-on-Chip. The Thunderboard MHz maximum operating frequency EFR32BG22 is an ideal platform for developing energy-friendly connected IoT devices. 512 kB flash and 32 kB RAM Energy-efficient radio core with low The Thunderboard EFR32BG22 ships with a Bluetooth demo that works with a cloud active and sleep currents connected smartphone app, showcasing easy collection of environmental and motion Bluetooth 5.2 Direction Finding sensor data, as well as button and LED control. Integrated PA with up to 6 dBm (2.4 A built in SEGGER J-Link debugger ensures easy debugging through the USB Micro-B GHz) TX power connector. Secure Boot with Root of Trust and Secure Loader (RTSL) KIT FEATURES 2.4 GHz ceramic chip antenna Power control of on-board peripherals for ultra low power operation Relative humidity and temperature sensor UV index and ambient light sensor Hall effect sensor 6-axis inertial sensor 8 Mbit flash for OTA programming and data logging User LED and push button 20-pin 2.54 mm breakout pads SEGGER J-Link on-board debugger Virtual COM port Packet Trace Interface (PTI) Mini Simplicity connector for AEM and packet trace using external Silicon Labs debugger USB or coin cell battery powered. SOFTWARE SUPPORT Simplicity Studio silabs.com Building a more connected world. Rev. 1.0 Table of Contents 1. Introduction................................4 1.1 Kit Contents...............................4 1.2 Getting Started..............................4 1.3 Hardware Content.............................4 1.4 Kit Hardware Layout............................5 2. Specifications...............................6 2.1 Recommended Operating Conditions ......................6 2.2 Current Consumption............................7 3. Hardware.................................8 3.1 Block Diagram..............................8 3.2 Power Supply ..............................9 3.3 EFR32BG22 Reset ............................9 3.4 Peripherals ...............................10 3.4.1 Si7021 Relative Humidity and Temperature Sensor ................11 3.4.2 Si7210 Hall Effect Sensor.........................11 3.4.3 Si1133 UV Index and Ambient Light Sensor...................12 3.4.4 ICM-20648 6-Axis Inertial Sensor ......................13 3.4.5 Push Button and LED ..........................14 3.4.6 External Memory............................14 3.5 On-board Debugger ............................15 3.6 Connectors ...............................16 3.6.1 Breakout Pads ............................17 3.6.2 Mini Simplicity Connector.........................18 3.6.3 Debug USB Micro-B Connector.......................18 4. Debugging ............................... 19 4.1 On-board Debugger ............................20 4.2 External Debugger.............................20 4.2.1 External Debugger Considerations......................20 4.3 Virtual COM Port .............................21 5. Radio ................................. 22 5.1 RF Section ...............................22 5.1.1 Description of the RF Matching.......................22 5.1.2 RF Section Power Supply.........................22 5.1.3 RF Matching Bill of Materials........................22 5.1.4 Antenna...............................23 5.1.5 Antenna Matching Bill of Materials......................23 5.2 EMC Regulations for 2.4 GHz.........................23 5.2.1 ETSI EN 300-328 Emission Limits for the 2400-2483.5 MHz Band ...........23 5.2.2 FCC15.247 Emission Limits for the 2400-2483.5 MHz Band .............23 silabs.com Building a more connected world. Rev. 1.0 2