A green house is where plants such as flowers and vegetables are grown. Greenhouse’s warmup during the day when sun-rays penetrates through it, which heats the plant, soil and structure. Green houses help to protect crops from many diseases, particularly those that are soil borne and splash onto plants in the rain. Greenhouse effect is a natural phenomenon and beneficial to human being. Numerous farmers fail to get good profits from the greenhouse crops for the reason that they can’t manage two essential factors, which determines plant growth as well as productivity. Green house temperature should not go below a certain degree, High humidity can result to crop transpiration, condensation of water vapour on various greenhouse surfaces, and water evaporation from the humid soil. To overcome such challenges, this greenhouse monitoring and control system comes to rescue. This project demonstrates the design and implementation of a various sensors for greenhouse environment monitoring and controlling. This greenhouse control system is powered BY RASPBERRY PI ZERO W it consists of DHT11; it can detect both Humidity& temperature sensor, soil moisture sensor; it can detect moisture content in soil, Rain sensor to detects the rain sensor, LCD display module, DC fan and water pump. Based on the moisture content in soil, Raspberry Pi will turn ON/OFF the water motor through relay. Here relay works as a switch to ON/OFF the water motor. If the system detects high humidity, it will turn ON the DC motor to control the humidity. Raspberry Pi will continuously read the data from sensors and will be display on LCD as well as it will upload the same data into the thingspeak cloud over IOT. By this way it will become easy to monitor and control the system. To achieve this task raspberry pi loaded program written in python language

   

The major features of this project are:

• Design a Raspberry pi based greenhouse monitoring system.
• DHT11 sensor-based temperature and humidity detection.
• Soil moisture based automatic water pump.
• Humidity -based DC motor control system.
• Monitoring sensor data on LCD display.
• Wireless monitoring of sensor data into the thingspeak cloud.

The major building blocks of this project are:

• Adapter power supply.
• Raspberry pi zero W.
• DHT11(Humidity & Temperature) Sensor.
• SOIL Moisture.
• Rain sensor.
• Relay With water motor.
• LCD display.
• DC motor.
• SD card.

Software’s used:

• Python programming.
• Raspbian OS.
• Express SCH for Circuit design.

     

   

Block Diagram:    

 

   

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