1. AUTOMATIC STREET
LIGHTING SYSTEM
Presented by:
MD. RAIHAN HOSSAIN
ROLL NO. 1211043
MD. SABBIR AHMED
ROLL NO. 1211047
JAHANGIR ALAM
ROLL NO. 1211054
Supervised by:
Dr. MD. RAFIQUZZAMAN
ASSISTANT PROFESSOR
MD. SHOHEL PARVEZ
ASSISTANT PROFESSOR

2. WHAT IS AUTOMATIC STREET LIGHTING
SYSTEM
 Automatic Street Lighting System is a simple and
powerful concept, which uses transistor as a switch to
switch ON and OFF the street light system automatically.
It automatically switches ON lights when the sunlight
goes below the visible region of our eyes.It automatically
switches OFF lights when Sunlight fall on it in morning,
by using a sensor called LDR (Light Dependent
Resistor) which senses the light just like our eyes.

3. OBJECTIVES
 Reducing the wastage of power
 Reducing physical efforts
 Improve the system in our daily life

4. BASIC CONCEPT ABOUT PROJECT
 Simple and powerful device, which uses
Transistor (BC547 NPN)
 Switches ON lights (LED) when the light (i.e.
day light) decreases
 Switches OFF lights when light falls on LDR

5. MAIN EQUIPEMENTS
 Transistor BC547
 LDR (Light Dependence Resistor)
 Resistor
 LED

6. CIRCUIT OF AUTOMATIC LIGHT
CONTROLLER

7. COST ESTIMATION
SL NO. Components Name Quantity Cost(TK)
1 LDR( Light Dependent Resistor) 3 60
2 Transistors(NPN transistor- BC547 or BC147 or
BC548)
6 15
3 Resistor 5 30
4 Light emitting diode (LED) 5 30
5 Connecting wires As Required 30
6 Power supply 2 100
7 Bread board 2 150
8 Solder 1 150
9 Ragan As Required 20
10 Varo board 2 50
11 Crock sheet 1 50
12 Glue As Required 25
13 Knife 1 15
14 Carrying issue As Required 100
15 Jack 1 15
TOTAL = 850

8. ADVANTAGES
 Energy savings
 Low cost
 Safety and Security
 Reducing physical efforts

9. DISADVANTAGES
 It has a limitation of power
 Light turns on when shadow falls on LDR
 LED is a low voltage device

10. FUTURE IMPROVEMENT
 By using same concept we can modify this
project for commercial use
 It is possible to make the project appropriate for
high voltage of power

11. THANKS
Question ?