Authors:
Nicolas Villar
Steve Hodges
Summary:
GOAL: the use of a simple circuit to enable interaction-powered devices that support rotary input as the primary interaction technique; a design for a generic wireless interface device based on this circuit. gestural interaction devices like Wiimote enable users to perform large set of gestures which have potential energy. There are lot of oppurtunities to harness this energy to use it as power source for the device.
When the user turns the knob, the microcontroller powers up and samples the inputs from the supply circuit, as well as the state of the three additional buttons. It encodes and transmits the speed of turn, direction of turn and state of the buttons (pressed/released) as a single wireless packet. As long as enough power is being generated the microcontroller continually samples and transmits packets at 5ms intervals. Some interesting extensions include providing force feedback to users by shorting the DC motor. This stops the motor and does not allow the user to turn the knob. By periodically and momentarily braking rotation in this manner, it becomes possible to dynamically generate a variety of interesting haptic effects without supplying additional power.
Discussion: Interesting field of research. Tapping potential energy from the gesture movements is awesome. The haptic feedback entensions provided by the system is interesting.
Comments:
I thought this was very creative and practical. I particularly liked the 1950s version.
ReplyDeleteThe idea is quite interesting. Maybe one day batteries won't be needed.
ReplyDelete