Thanks Bill, will get a chance to try and update you soon, btw: I’d like to send those data to cloud for further machine learning analysis(feature selection/extraction for destress, normal, nurvous…), any similar case would be appreciated, it’s something like this: <LINK_TEXT text=“https://www.ibm.com/developerworks/libr … index.html”>https://www.ibm.com/developerworks/library/iot-cognitive-iot-app-machine-learning/index.html</LINK_TEXT>