The design is made up of three components: wands, badges, and the control center. The game is for two players and each player has a 3D-printed wand and a badge. The control center will act as a scoreboard. To “cast a spell”, players will say the spell name, press a button on the wand and move it in a certain way. These conditions will be detected by an audio detector, a button, and an accelerometer, respectively. An LED on the tip of the wand indicates a successful spell cast, and an IR beam will be projected from the tip. Players can put up a shield by pressing a button on the badge. If the player successfully casts a spell that hits an unguarded badge with the IR receiver, the badge will give visual and haptic feedback using an LED and a vibrating motor and the control center will register a point.
Team 1 will focus on building the wearable sensors, or badges, that will receive IR signals and give feedback to the user as well as the control center, or scoreboard. As of right now, our team plans on making a badge to go along with the Harry Potter theme that will either be attached to a vest of sorts. A stretch goal related to this would be to advance from a vest to a badge that goes along with some wrist bands and a belt. One of our team members, Courtney, can sew, so we were planning on attaching these sensors to fabric to be worn by the user.
The badges and accompanying vests will consist of an arduino to control user input and provide feedback, and an XBee to facilitate communication with other game components such as when the user is “hit”. The vests will also have IR receivers to act as a place to be “hit” by a spell, LEDs to indicate where the user was “hit”, and vibrating mini motors to provide haptic feedback where the user was “hit”. There will also be a button that will provide a “shield” for the user that will be able to communicate via Xbee with other game components. Lastly, there will be sensors to allow the system to know when it is in use, and a potentiometer to allow the user to set their difficulty through the sensitivity of their receivers.