Haptic Display Unit: IoT For Visually Impaired

In this era of smart world several gadgets have been developed to make our lives easier. Great efforts have been put forth by the scholars worldwide to develop such smart gadgets for the welfare of blind. In case of haptic display units which refresh Braille characters for the visually impaired persons to read by the sense of touch also called as a dynamic Braille display. There have been several advancements evolved in such devices. Every design has both pros and cons. This paper tries to rectify particular cons of the existing Piezoelectric Braille display designs by updating it to the solenoid activated units and to make the haptic display units more reliable by empowering with IoT functionality. The developed prototype works with a 12 V DC supply line and a controller. In future, such proposed display units can be implemented on smart phones and to enhance the lives of differently abled citizen. The presented work can serve as a handy guideline for the fabrication and implementation of Solenoidal Braille systems.