CONTENTS Objective Software &Hardware requirements Block diagram Mems technology Implementation Applications &Advantages Future scope Conclusion References

Main Objective The main aim of this project is to control the robot using MEMS.The MEMS will be fixed to the hand. Whenever the hand moves in any direction, the mechanical movement of the hand will be recognized by MEMS.MEMS converts this mechanical hand movement in to equivalent electrical signals and sends it to the microcontroller. The microcontroller receives this and controls the robot.

The three main software tools &Hardware tools are: Software tools:  Keil compiler  Proload  Orcad Hardware Tools:  Microcontroller AT89S52  MEMS sensor  DC motors and driver circuit Software &Hardware requirements

BLOCK DIAGRAM FFFFF POWER SUPPLY MEM SENSOR MOTOR 1 MOTOR DRIVER MOTOR 2 AT89S52AT89S52 MEMS DRIVER

POWER SUPPLY Here is the circuit diagram of 9 V regulator using popular 7805 IC. The 7805 is a 9 Volt voltage regulator IC with features such as internal current limit, safe area protection, thermal protection etc. A 16 V transformer brings down the 230V mains, 1A bridge rectifier rectifies it and capacitor C1 filters it and 7805 regulates it to produce a steady 5V DC output.

AT89S52 Microcontroller The AT89S52 is a low-power, high performance CMOS 8-bit microcontroller with 8K bytes of in-system programmable Flash memory. The on-chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile memory pro-grammer. By combining a versatile 8-bit CPU with in-system programmable Flash on a monolithic chip, the Atmel AT89S52 is a powerful microcontroller which provides a highly-flexible and cost- effective solution to many embedded control applications.

features Features: 4.0V to 5.5V Operating Range Fully Static Operation: 0 Hz to 33 MHz Three-level Program Memory Lock 256 x 8-bit Internal RAM 32 Programmable I/O Lines Three 16-bit Timer/Counters Eight Interrupt Sources Full Duplex UART Serial Channel Dual Data Pointer Power-off Flag Fast Programming Time

MEMS sensor& Driver Mems sensor: A micro-Elecromechanical System (MEMS) sensor is usually constructed by similar masking/etching process as microchips. The MEMS sensor's working principle a common MEMS sensor is an accelerometer to measure acceleration. In such a sensor, a relatively large piece of silicon can be suspended by thin pieces and its motion is monitored

o Mems driver: It act as medium for both mems sensor and micro controller and also for actuation and testing of MEMS devices requires both an amplifier and a signal source. Advanced MEMS provides a fully integrated line of solutions referred to as MEMS drivers.

Motor driver The Easy Driver is a simple to use stepper motor driver, compatible with anything that can output a digital 0 to 5V pulse. Easy Driver requires a 7V to 30V supply to power the motor, and has an on board voltage regulator for the digital interface. Connect a 4-wire stepper motor and a microcontroller and you've got precision motor control! Easy Driver drives bi-polar motors, and motors wired as bi-polar. I.e. 4,6, or 8 wire stepper motors.

MEMS TECHNOLOGY Micro-Electro-Mechanical Systems, or MEMS, is a technology that in its most general form can be defined as miniaturized mechanical and electro-mechanical elements (i.e., devices and structures) that are made using the techniques of micro fabrication. The one main criterion of MEMS is that there are at least some elements having some sort of mechanical functionality whether or not these elements can move.The term used to define MEMS varies in different parts of the world. In the United States they are predominantly called MEMS, while in some other parts of the world they are called “Microsystems Technology” or “micro machined devices”

IMPLEMENTATION A robot can operated actually by using a remote,but in our project robot is operated with the basis of hand gestures. A Gesture Controlled robot is a kind of robot which can be controlled by your hand gestures not by old buttons. You just need to wear a small transmitting device in your hand nothing but mems sensor. This will transmit an appropriate command to the robot so that it can do whatever we want. The transmitting device included a comparator IC for analog to digital conversion and an encoder Ic which is use to encode the four bit data

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APPLICATIONS & ADVANTAGES ADVANTAGES: 1.Easy to operate 2.Low power consumption 3.User friendly 4.One can able to control one’s slave robot just by hand gestures by this technology APPLICATIONS: 1.Plays a major role in helping deaf and dumb people in their daily life 2.Can be used as assistance for physically challenged people 3.Military applications

FUTURE SCOPE Adding zigbee module Adding Gprs and Gps Adding video camera for live streaming By connecting bomb detectors and metal detectors

CONCLUSION This robot is controlled by the hand using MEMS technology, MEMS converts this mechanical hand movement in to equivalent electrical signals and sends it to the microcontroller. The microcontroller receives this and controls the robot,and it is user friendly available for all.