Climate Control in Green House Using Intelligent Control Monitoring System



  • The sole purpose of this project is to protect the nurturing plants and additional system of control is employed to conserve energy as it is the vital source for power.
  • This intelligent contraption involves the combination of sensors and microcontrollers.
  • Specific agricultural plants require specific amount of humidity, hence the application of humidity sensor is found here since it’s a big hassle for the farmers to accurately measure from the soil.


Light sensor:

  • It is a type of resistance that can be varied.
  • Then a specific intensity of light falls on the microcontroller the controller activates the sensor and after some time it turns off.
  • This controller facilitates automatic switching of lights in order to save energy.
  • PIC16F887A is the microcontroller used in this project.


  • This is employed in agricultural farms since both low levels or high levels can prove detrimental to the life expectancy of the crops sown by our hardworking farmers.
  • HS1101 is an unique type of humidity sensor.
  • If the humidity in air exceeds a specific value then the microcontroller gives signal to the relay.
  • The frequency so measured is calculated  using some preallocated algorithm within the microcontroller.


  • It is used to measure the moisture present in the soil.
  • For thism, a wire strip is inserted into the soil.
  • The way it works is like whenever the moisture content is less, the resistance of the strip goes high and vice versa.
  • Therefore the PIC16F877A is used to control the functioning of water pump using the moisture sensor.


  1. Wireless sensor can be incorporated along with this  circuit in order to inform the values and measurements. user who is not at a remote location.
  2. In absolutely any existing greenhouse for employing self automated control of devices.