Welcome

to

Practical

Session

Robot to be made

Chassis

Battery

DPDT Switch

Assembling Continued......

MOTOR

Use these Screws ONLY

Assembling Continued......

Assembling Continued......

Assembling Continued......

USE THESE

SCREWS

Assembling Continued......

Assembling Continued......

USE THESE

SCREWS

Assembling Continued......

Assembling Continued......

Assembling Completed..

Controlling Robot by DPDT Switch

Colour of wire Connect to

Battery clip

Left motor of robot

Right motor of robot

Wires

And You’re done..

Circuit Diagram for +5 volts supply

+

-

Input(+9volts) Output (+5 volts)

Ground

Mobile Controlled Robot (DTMF)

DTMFDecoder

Motor Controller

ROBOT(Motors)

DTMF IN(Phone)

Power Supply

Binary Output

Mobile Controlled RobotComponents required for preparing the +5 V supply

Breadboard

LM 7805

Cathode

AnodeInput

Ground

OutputLED

Battery clip

Continued...

Input Ground

Output

Positive

Negative

(Ground bus)

LM 7805

Continued...

Battery clip

Positive

Negative

Anode(positive)

Cathode(negative)

Continued...

Resistor

(470Ω)

Place resistor between these points

IC L293D Pin Configuration

L29

3D

PIN 1

PIN 8

Connecting IC L293D

IC Notch

Pin no. 1 connected

to +5 volts

+5 volts from here

Pin no. 9

Connecting +5 volts supply to IC

Pin no. 1 and 16

connected

to +5 volts

Pin no. 9 connected to +5 volts

Connecting +9volts supply to IC

Connect +9 volts from battery directly to pin no. 8 of IC

Connecting Ground to IC

Connect Pin no. 4 & 5 together and to pin no.13

Connect Pin no. 12 & 13 together.

Connecting Ground to IC

Connect Pin no. 4 OR 5 to the ground bus of breadboard

Ground bus

Connecting Motors to IC L293D

Connect pin no. 3 & 6 to left motor.

Connect pin no. 11 & 14 to Right motor.

DTMF Module

DTMF IN (From Phone)

+5V Power supply

Binary Output

Connecting DTMF Module

Connect +5V supply to the DTMF board

Connect the Binary Outputs to IC

Color of Wire Connect to

Orange Pin no. 15

Red Pin no. 10

Brown Pin no. 7

Black Pin no. 2

Connect the four wires

as given in below table

Connect the DTMF source (Phone)

Finally, Connect the battery !!

Thank You !!!