Devkit Specifications

ThunderBoard Sense

Silicon Labs

The Thunderboard Sense "Inspiration Kit" is the second in the Thunderboard family of development kits, and includes six different sensors (a seventh hall-effect sensor coming soon) that interface with the onboard 2.4 GHz multiprotocolwireless EFR32 SoC. The Thunderboard Sense, which can be powered by a coin cell battery, also comes with a companion Android/iPhone app that allows developers to track sensor data in real-time for cloud-based monitoring and analytics.

Item Specification
Chip • Silicon Labs EFR32 Wireless System-on-Chip with 2.4 GHz ceramic antenna
• EFM8 Sleepy Bee microcontroller
Compute • 32-bit ARM Cortex-M4 at 40 MHz
• 8051 core (EFM8)
Memory • 32 kB RAM and 256 kB Flash (EFR32)
• Macronix 8 Mb ULP SPI Flash (MX25R8035F)
I/O and Peripherals • Si7021 Relative Humidity and Temperature Sensor
• Si1133 UV Index and Ambient Light Sensor
• Bosch Sensortec BMP280 Barometric Pressure Sensor
• Cambridge CCS811 Indoor Air Quality Gas Sensor
• Invensense ICM-20648 6-Axis Inertial Sensor
• Kowles SPV1840 MEMS Microphones
• Coin Cell Battery Connector
• External Battery Connector
• 20-pin Expansion Header
• Mini Simplicity Connector
• USB Micro-B Connector
• I2C
Wireless • Bluetooth Low Energy (BLE)
• Thread
• ZigBee
• 2.4 GHz Proprietary Protocols
Software • Simplicity Studio 4
• SEGGER J-Link debugger
• Companion iOS/Android Mobile App (implemented in swift)
• Google Firebase