Environmental and Biometric Sensor Puck with Bluetooth Low Energy and iOS/Android App SENSOR-PUCK The SENSOR-PUCK provides a convenient development and demo platform for Silicon Labs’ Si114x Optical Sensors and Si701x/2x Relative Humidity and Temperature Sensors. The coin-cell battery operated SENSOR-PUCK is controlled by an EFM32™ energy friendly MCU. A Bluetooth Low Energy (BLE) module is used to broadcast sensor data to iOS or Android smartphones with the downloadable SENSOR-PUCK app. Place your finger tip over the Si1147 sensor to measure heart rate. Environmental sensing of UV Index, ambient light, relative humidity, and temperature is also provided. For power management, the board features a Touchstone TS3310 boost DC/DC converter. Add to Cart The development kit includes: SENSOR-PUCK board CR2032 battery Additional Resources SENSOR-PUCK User Guide The Silicon Labs Sensor Puck app is downloadable at no charge from the Google Play store. The app is also available for download in the iTunes app store, search for Silicon Labs Sensor Puck. For customers in countries where Google Play is blocked, please download the Android app directly and follow the included instructions to install.