1. HARISH Rajula
Siddhartha inst of
tech&Scince
HYD.

2.  IMPORTANCE OF THIS PROJECT
What are the renewable and non renewable resources
1.Sunlight 1.Electricity
2.Wind power 2.Petrolium
3.Water 3.Biofuels…etc.

5.  Searching an alternate
source for
POWER
 Using power in proper way.

6.  The main aim of this project is to control the
brightness of light intensity by SUN light using
Microcontroller.
 lighting of LED will vary depends on ligh
intensity..

 The Project LDR based automatic lamp
illumination controller with high power/intensity.

7. Block diagram:
Power
supply
LDR
Input
Output

10.  In day time  In the night time

11. 1.Less Hardware requirement.
2.Low cost.
3.Easy to implement
4. Avoid unnecessary wattage
loss.

12. 1. Home appliances.
2. Industrial applications.
3. Many other fields where power
consumption is more.

14. Ambient light detection
Activate and de-activate lighting,
sun blinds, roof windows.
Closed loop LED light and color
intensity control.
Hand Detection
Activate washing table water taps
and hand dryers.
Automotive light
control
Detect ambient light for rear-view
mirror dimming, for
instrument panel light control and
for headlight control.