HapRing: A Wearable Haptic Device for 3D Interaction

Hapring is a haptic device that provides touch feedback in spatial interactive applications. Hapring comprises the design and creation of a finger-worn device, avoiding cables by using a low-energy wireless technology. A vibrational element is managed and controlled by embedded software to provide haptic feedback at different frequencies according to signals received from the computer. The embedded software running on the Hapring is managed and controlled by an RF51822 SoC(System on Chip), it has a 32-bit ARM Cortex, supporting Bluetooth for low power wireless application. It has power connectors, I/O ports used to connect joystick with command button and Linear Resonant Actuator. It also has a rechargeable battery. The commands are transmitted through UDP port. The Hapring was manufactured using the 3D printing to make a comfortable and reliable device. The latency measurement is done by sending vibration signal through UDP port and measuring the time, which was 23ms and this latency is acceptable for common interactive tasks. The Hapring can be integrated with Stereoscopic multi-touch tabletops, head mounted device and Leap Motion.