• Sensor to detect foot steps on floor



    I am thinking of trying person identification through their foot step sound / vibration. This is should be entirely possible because humans can do it and some research papers exist on this topic. But here comes the question:


    Which (low cost) sensor…

  • actigraphy wrist watch



    I need to build a simple accelerometer wrist watch to record hand or leg  movements during sleep and get ( X,Y Z) data. How can I start with this ?