EMBEDDED GREEN HOUSE AUTOMATION SYSTEM

         Greenhouses are often used for growing flowers, vegetables & fruits plants. The closed environment of a greenhouse has its own unique requirements, compared with outdoor production. Pests and diseases, and extremes of heat and humidity, have to be controlled, and irrigation is necessary to provide water. Significant inputs of heat and light may be required, particularly with winter production of warm-weather vegetable.

The main aim of this project is to control the basic parameters of the green house. Different sensors are used in this project to measure various parameters.
Light Dependent Resistor will be used to measure the light intensity, Temperature sensor will be used to get the temperature & timely irrigation will be provided by turning ON the motors at specific intervals.  LCD will display the current temperature & light intensity. To display the temperature and intensity values, initially these values have to be converted into digital values. ADC is used to convert the analog parameters into digital values.

Thus, whenever the temperature exceeds the set point, the cooling system will be turned on automatically. Whenever light intensity is low in the room, the lights will be switched on automatically according to the intensity of sunlight in the room.

SOFTWARE AND HARDWARE TOOLS:

Software Tools:

1. Keil compiler
2. Orcad.

Hardware Tools:

1. Microcontroller AT89S52.
2. Sensors- LDR and LM35
3. ADC
4. LCD
5. TRIAC and TRIAC driver