project on microprocessor

1. Micro processing
and interfacing
Control
System for
Greenhouse

2. TEAM MATES
Asna Riaz
Abid Ali Khan
Ansa Javed

3. OVERVIEW
PROBLEM STATEMENT
SCOPE
DESCRIPTION
BLOCK DIAGRAM
FUTURE RECOMDATION
PROTEIOUS SIMULATION
CONCLUSION
AGENDA

4. Objective
• Enhance productivity.
• Quality of Life
• Provide real time
information.
Green house intelligent control system
designed to protect the plants from
more cool and hot weather and an
additional control system is included to
save power by making fans and lights
automatically turn on and off with the
help of intelligent control system. In
this project the intelligent control
system is developed using
microcontroller and sensors. .
OVERVIEW

5. PROBLEM STATEMENT
How to increase the productivity of greenhouse. Automatic control with light fan
and moisture.

6. The present study is concerned with the
scope of greenhouse technology in
agricultural engineering (cultivation, drying
and space heating).
The greenhouse can provide control
environment for high value crops like
medicinal plants, flowers etc.
crops grown inside a greenhouse are healthy
and give better results.
SCOPE

7. • LM35 temperature sensor
• Light sensor
• humidity sensor
• Moisture sensor
TOOL REQUIRED

8. DESCRIPTION
Sensors:
we are going to use temperature sensor, humidity sensor and
light sensor to sense temperature humidity and light
respectively. Metal thin rods or wires are used to sense soil
moisture. These sensors sense the parameters and gives
corresponding voltage output.
Amplifier:
As the voltage output from the sensors is in miliVolts, it has to
be increased to 0 to 5 volts range. We are going to use linear
amplifier for this purpose.

9. ADC:
The main part of our project is microcontroller which reads only
digital input. (0V & 5V) But the output of Amplifier is in analog form,
so it has to be converted into digital format, for this purpose we are
going to use ADC to convert analog output from amplifier into the
digital output to be given to microcontroller
Relay:
We have used 2 relays in our project. First one will be turned on
when the temperature goes above the desired value. And the second
relay will be turned on when humidity goes above the desired value.
Description(CONT…)

10. DC Motors:
We are going to use two 12 volt DC motors. First DC motor will be
turned on when Light goes above threshold level. Second DC motor
will be turned on when Soil moisture goes below threshold level.
PC Interfacing:
We are going to use max 232 IC for pc interfacing, the values of
temperature and light will be sent to pc when the key is pressed
Description(CONT…)

11. MICROCONTROLLER
PIC 16F877A
FAN RELAY
BLOCK DIAGRAM
TEMPERATURE
SENSOR
SPRINT RELAY
LIGHT RELAY
HUMIDITY
SENSOR
LIGHT SENSOR
MOISTURE
SENSOR WATER PUMP
RELAY
LCD 16X2

12. PROTEUS SIMULATION
.

13. Future Recommendation
• smart farming helps farmers to better understand the important
factors such as water, topography, aspect, vegetation and soil
types.
• This allows farmers to determine the best uses of scarce
resources within their production environment and manage
these in an environmentally and economically sustainable
manner.
• You can also add extra functionality in this project by adding
wireless communication to send values of sensors and status of
devices to someone which is not at remote location

14. Conclusion
.