MEMS BASED HAND MEMS BASED HAND GESTURE ROBOT GESTURE ROBOT CONTROL CONTROL

WHAT IS THE PROJECT ALL WHAT IS THE PROJECT ALL ABOUT?? ABOUT??

To Control the movement of robot wirelessly To Control the movement of robot wirelessly using hand gesturesusing hand gestures

WHAT IS MEMS ?WHAT IS MEMS ?

MEMS Means micro electro mechanical systemMEMS Means micro electro mechanical system

It is a mechanical device driven by electricityIt is a mechanical device driven by electricity

It converts mechanical hand movements into It converts mechanical hand movements into equivalent electric signalsequivalent electric signals

Among many of the MEMS devices 3-Axis Among many of the MEMS devices 3-Axis accelerometer is one accelerometer is one

HARDWARE USEDHARDWARE USED

Micro controller ATMEGA-8Micro controller ATMEGA-8

MEMS sensorMEMS sensor

DC motor DC motor

Motor driver circuitMotor driver circuit

Block DiagramBlock Diagram

MICRO CONTROLLER(ATMEGA-8)MICRO CONTROLLER(ATMEGA-8)

low-power CMOS 8-bit micro controller, based on the AVR enhanced RISC architecture

8K Bytes of In-System Self-programmable Flash program memory

8-channel ADC in TQFP and QFN/MLF package

On-chip Analog Comparator

ACCELEROMETERACCELEROMETER

3 Axis Acceleration Sensor Board.

User could get acceleration value of X, Y, and Z axis.

widely used in shock, slope, and moving detection.

The output analog.

Used in tilt Sensing applications

MOTOR DRIVE(L293D)MOTOR DRIVE(L293D)

Usable from 6 to12V

Two DC motors can be driven simultaneously

Has output current of 600mA and peak output current of 1.2A

WORKINGWORKING

Based on user hand gestures Based on user hand gestures the accelerometer sends the the accelerometer sends the analog signals to the micro analog signals to the micro controller.controller.

The internal ADC module The internal ADC module present in the micro present in the micro controller converts the controller converts the analog data to corresponding analog data to corresponding data compatible with the data compatible with the motor driver i.e digital formmotor driver i.e digital form

WORKINGWORKING

This data is compared to the mean values given by the user(us) the relative shift in the data is calculated to determine the movements of the motor in either forward or backward direction

These signals are given to the motor driver

It can be controlled wirelessly at the range of 50-1600m

CONCLUSIONCONCLUSION

By these kind of human and machine interface By these kind of human and machine interface the control and steering of the future the control and steering of the future technology can be modernized technology can be modernized

This technology is very useful for physically This technology is very useful for physically challenged peoplechallenged people

ANY QUERIES ?ANY QUERIES ?

THANK YOUTHANK YOU

S.AdityaS.Aditya245110735057245110735057

ECE-4/4 AECE-4/4 A