Preliminary study of recognizing alphabet letter via hand gesture

Communication is one of human basic necessity. People with disabilities usually use sign language to communicate with others. The study identifies the alphabet letters from the finger spelling based on American Sign Language (ASL) standard. The bending sensors were attached to three fingers of spelling glove where the bending movement of each finger contributes different resistance value of the bending sensors. The combinations of resistance value from each finger were detected from microcontroller´s library and alphabet letters will be displayed. This study assists normal person who are new to sign language to understand the spelling letters when communicate with the disabilities.