The idea behind my final wearable project is solve to a problem that I face almost everyday: forgetting something important at home. I often find myself in the checkout line at the store without my wallet or getting lost on the road without my phone. If you’re a forgetful person like me, this may be the answer for you.
My concept was to design a device that will make sure that I have all of my essentials items with me before I walk out of the door. The wearable object is a bracelet that alerts the user if he/she walks out the door without and important item. The bracelet would be unobtrusive and neutral so that it’s good for everyday wear. The other components of the system will include tags to place on the items that you want to keep track of and a reader that is stationed near the door that detects if all of your items are present when you leave the house. When the reader detects that an item is missing, it will communicate this to the bracelet, which would alert the use through blinking lights, vibration or sound. Each item will be assigned to a unique tag and a colored light on the bracelet, allowing the system and user to know which item(s) the user is forgetting.
Originally I planned for the system to utilize Arduino micro controllers that would communicate wirelessly through RFID. In my initial research, RFID looked like the best and most inexpensive solution for my project. As I was looking to purchase supplies though, I found that long range (1m-25m) RFID technology is quite expensive. As an alternative, I used Bluetooth to wirelessly connect the Arduinos. I found a some asset tracking solutions such as Tile and Bikn that utilize Bluetooth signals to allow users to locate tagged items from their mobile devices. Since this project did not require long distance communication, Bluetooth was the next best idea.