The tactile device is thin, flexible, and has 25 stimulation generating points within a 2 cm × 2 cm area. To achieve wearable, to install the driving circuit close to the device, we use high voltage output Integrated Circuit (IC). Here, Serial Peripheral (IMAGE)

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The tactile device is thin, flexible, and has 25 stimulation generating points within a 2 cm × 2 cm area. To achieve wearable, to install the driving circuit close to the device, we use high voltage output Integrated Circuit (IC). Here, Serial Peripheral

Caption

The tactile device is thin, flexible, and has 25 stimulation generating points within a 2 cm × 2 cm area. To achieve wearable, to install the driving circuit close to the device, we use high voltage output Integrated Circuit (IC). Here, Serial Peripheral Interface (SPI) is used for communication, and 8-Channel Serial-to-Parallel Converter with High-Voltage Push-Pull Outputs: HV513 is used as the driving IC, which can control voltage up to 250V and drive piezoelectric devices. We also developed a control system on a PC that generates tactile patterns for each of the 25 tactile presentation points and changes the tactile patterns over time. We also implemented a function to control the frequency at double the frequency so that dithering can be performed, focusing on the strength of the tactile sensation.

Credit

Junyun Zheng/ Tokyo Polytechnic University, Yuya Otahara / Tokyo Polytechnic University, Junji Sone / Tokyo Polytechnic University

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