Paper Details

Dumb people have complexity in communicating with others who don‟t understand sign speech. The HandTalk glove is made of regular, cloth driving glove fixed with flex sensors along the length of each finger and the thumb. Theflex sensors output a flow of data that varies with point of bend. The output from the sensor is analog signal it is converted todigital and processed by using microcontroller and then it will be transmitted through wireless communication (RF),it will bereceived in the receiver part and processed using responds in the voice using speaker. In this project Flex Sensor Plays thekey role, Flex sensors are sensors that change in resistance depending on the amount of bend on the sensor. They conv ert thechange in bend into electrical resistance - the more the bend, the more the resistance value.They are usually in the form of a thin strip from 1" -5" long that vary in resistance from approximately 10 to 50 kiloohms. They are often used in gloves to sense finger movement. Inside the flex sensors are carbon resistive elements within athin flexible substrate. More carbon means less resistance. When the substrate is bent the sensor produces a resistance outputrelative to the bend radius. With a typical flex sensor, a flex of 0 degrees will give 10K resistance with a flex of90degrees will give 30-40 K ohms. The Bend Sensor lists resistance of 30-250 K ohms .In this system we use RadioFrequency Signal to transmit the signal from transmitters to Receptors

S.Vaishnodevi, S.Mathankumar, S.Kalaivani, “Hand-Talk Assistive Kit for the Dumb”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 2, Issue 8, pp. 101-104, August 2015.