Sooraj Gupta Shailendra Singh Utkarsh Katyaayun

forestevanescentElectronics - Devices

Nov 2, 2013 (3 years and 9 months ago)

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Sooraj

Gupta

Shailendra

Singh

Utkarsh

Katyaayun

CONTENTS:



Introduction



Game Pad Description


Microcontroller


L293D Motor driver IC


16x2 Graphics display


Wireless Communication (RF434)


Transmitter Circuit



Receiver Circuit


Applications

I
NTRODUCTION
:

The primary objective of this project was to build a wireless
link between the robot and the gamepad
controller.This

is
done to give the robot mobility and range which are absent
in case of a wired robot. A wireless communication channel
makes the
bot

eligible for various uses and applications.


G
OAL
:

PS2

M

C

U

TRANSMITTER

RECIEVER

M

C

U

ROBOT

B
LOCK

D
IAGRAM
:

C
ONTROLLER
:



PS2 Controller used

W
IRE

CONNECTIONS
:

W
IRE

CONNECTIONS
:

1.
Brown
-

Data: Controller
-
> PlayStation.


2. Orange
-

Command: PlayStation
-
> Controller.


3
.
Grey
-

Vibration Motors
Power7.6V


4
. Black


Ground


5. Red


Power


6
. Yellow


Attention


7
. Blue
-

Clock:
500kH/z.


8. White


Unknown


9. Green
-

Acknowledge

M
ICROCONTROLLER
:

ATMEGA16

FEATURES


High
-
performance, Low
-
power AVR 8
-
bit Microcontroller


Non volatile Program and Data Memories


Internal Calibrated RC Oscillator.


Programmable Serial USART.


Master/Slave SPI Serial Interface
.


Speed Grades.


0
-

8 MHz for ATmega16L


0
-

16 MHz for ATmega16


L293D
MOTOR

DRIVER

IC

• Output Current 1A Per Channel
(600mA

for L293D)

• Peak Output Current 2A Per
Channel

(1.2A for L293D)

• High Noise Immunity

• Separate Logic Supply

• Over
-
Temperature Protection

16
X
2 LCD

∙ Characters x lines: 16 x 2

∙ Character font: 5 x 7

∙ Input data: 8
-
bit

∙ Input voltage: 5V @ 1.3mA

∙ Black lettering with Yellow backlight

∙ Display size: 2.5"W x 0.4"H


W
IRELESS

COMMUNICATION
:



Transmitter/
Reciever

operate at 434MHz



Data received and transmitted by pin 4 at



transmitter(antenna)



Speed is 1Kbps
-
10Kbps



Encoder/Decoder used also.


ASK modulation is used.


It can travel through larger distance.


RF signals can travel even if there is obstruction
between
Tx

& Rx.


RF 434 Module

USART

We have used USART of atmega16 in asynchronous mode. The UBRR
value is 416 and the corresponding Baud Rate is 1200.

The data frame is of 8 bit, where no parity bit is used and 1 stop bit.

Registers used are
-

UCSRC, UBRR,UDR,UCSRA,UCSRB.

T
RANSMITTER
:

R
ECEIVER
:

APPLICATIONS:



Data collection


Bomb diffusion


Spy


Pick and Place


Route Clearance


Home applications


Surviellance



Exploration and
collectiong

samples

FUTURE ADVANCEMENTS


Space exploration.


Search and Rescue Bots.


Agriculture Bots.


Underwater Vehicles.


Home help.


T
HANK

YOU