The main aim of this project is to design and construct a system with which gestures are given through Flex and MEMS sensors which are converted to voices and text. It is very use full for deaf and dumb people to express their needs by using simple hand gesture using MEMS AND flex sensors.   This flex sensor is a unique component that changes resistance in proportion to the degree it is bent.  The sensor when lying flat has a nominal resistance. As the flex sensor is bent the resistance increases in proportion. This device is very helpful for paralysis and physically challenged persons.   The whole system is controlled by Arduino. There are 3 Flex sensors, MEMS sensor and HC-05 Bluetooth module is interfaced to Arduino. All these components are placed on the glove which is operated with 9VDC battery power. User wear this glove to his/her hand. By using simple hand gesture, user will express their needs like water, food…The Arduino sends these commands to the Bluetooth application via HC-05 Bluetooth module which announces the voices and display the text.

 

The main objectives of the project are:

1. Simple gestures movement-based voice and text conversion.
2. Gesture movement using MEMS and Flex technology.
3. Using Bluetooth application to announce the voice and display the text.

This project provides us with the learning’s on the following aspects:

1. Characteristics of Flex sensor
2. Interfacing of Flex sensor with Microcontroller.
3. Mems sensor working.
4. Embedded C programming.
5. PCB Design concepts.

The major building blocks of this project are:

• 9V Battery power supply.
• Arduino UNO.
• Flex sensors.
• ADXL335 MEMS.
• Hc-05 Bluetooth.
• LED indicator.

Software’s used:

• Arduino IDE compiler for Embedded C programming.
• Express SCH for Circuit design.
• Proteus for hardware simulation.

     

   

Block diagram:    

   

     

   

video: