Hi, my hand washing event logger is now a working prototype. When I worked as a nurse in a medical unit a person was employed to stand and record hand washing events with a clip board. My device uses a piezo-electric transducer to provide ‘1s and 0s’ to an Arduino micro processor while water is flowing. The Arduino logs the date/time and duration of the hand wash event on an SD card.
The LCD shows the last hand wash logged time and duration. The picture below is a screen shot of the time, day, month and duration being logged on the SD card.
The aim of the project is to provide hand washing data collection using embedded technology. It doesn’t look very embedded at the moment! It is sitting on our kitchen bench logging sink events. Hopefully it will form the basis of a study in a hospital.