SLTB004A Silicon Labs

UG313: Thunderboard Sense 2 Bluetooth Low Energy Demo User s Guide The Thunderboard Sense 2 Bluetooth Low Energy Demo is a THUNDERBOARD SENSE 2 HARDWARE complete sensor-to-cloud solution for the Thunderboard Sense 2 kit and accompanying iOS/Android application. Orderable pn: SLTB004A EFR32 Wireless System-on-Chip The demo collects and processes sensor data from the Thunderboard Sense 2, and Hall effect sensor gives immediate graphical feedback to the user through the Thunderboard iOS/Android Relative humidity and temperature sensor application. Cloud connection enables real-time graphs and past sessions of the sensor UV index and ambient light sensor data to be viewed on other devices through the web client. The demo is open source and provides a great demonstration and evaluation tool for adding Bluetooth Low Ener- Indoor air quality gas sensor gy connectivity to a sensor or actuator project. 6-axis inertial sensor Barometric pressure sensor MEMS microphone Four high brightness RGB LEDs BLUETOOTH LOW ENERGY DEMO FIRMWARE Silicon Labs Bluetooth Low Energy protocol stack Board Support Package including board peripheral drivers Bluetooth LE services supporting hardware peripherals Source code available THUNDERBOARD MOBILE APP Bluetooth Low Energy enabled mobile application iOS/Android platform support Cloud connected Source code available THUNDERCLOUD Web client based on Google Firebase Visualizes real-time sensor data and past sessions Source code available silabs.com Building a more connected world. Rev. 1.00 UG313: Thunderboard Sense 2 Bluetooth Low Energy Demo User s Guide Introduction 1. Introduction The Thunderboard Sense 2 Bluetooth Low Energy Demo is an excellent starting point to get familiar with the Thunderboard Sense 2 and its many sensors and wireless connectivity. The demo consists of the Thunderboard Sense 2 and accompanying Bluetooth Low Energy (BLE) firmware, the Thunderboard app with cloud integration and a web client. Once the app and hardware is connected using BLE, the Thunderboard app receives sensor data from the Thunderboard Sense 2 at a regular interval for graphical visualization on the screen. The app lets the user turn on and off the LEDs on the board as well as control the intensity and color of the RGB LEDs using buttons and slide controls. If chosen, the app delivers sensor data to the cloud, which can be viewed live on other devices or saved for later use. Raw data from the sensors is also available for download. LTE/WiFi BLE Cloud LTE/WiFi Thunderboard app Thunderboard Sense Web client Figure 1.1. System Application Diagram Magnetic Field Sensing Audio Sensing Hall effect sensor High quality MEMS microphone Silicon Labs Si7210 TDK InvenSense ICS-43434 Communication and Computation ARM Cortex-M4 multi-protocol radio SoC Silicon Labs Wireless Gecko EFR32 UV and Light UV index and ambient light sensor Silicon Labs Si1133 Indoor Air Quality Digital gas sensor ams CCS811 Temperature and Humidity Relative humidity and temperature sensor Pressure Silicon Labs Si7021 Absolute barometric pressure sensor Bosch Sensortec BMP280 Motion Tracking User Input and Feedback 6-axis inertial measurement unit 2 push buttons and 4 high-power RGB LEDs TDK InvenSense ICM-20648 Left Button Figure 1.2. Thunderboard Sense 2 Hardware Features More in-depth information on the Thunderboard Sense 2 can be found in UG309: Thunderboard Sense 2 Users Guide. All instructions, collateral and source files for the solution can be found here: