INTRODUCTION
Methodology
is to explain how the project is carried out. Explanations include block diagram and development of hardware.
- Designing the greenhouse structure with determine the exact dimension that are width, length and height.
- Design the piping system according to the dimension of the greenhouse by using polyvinyl chloride (PVC) pipe.
- Design and construct the circuit for humidity, temperature, light dependent resistor (LDR) sensor and water pump.
- Develop the program for the microcontroller that can link with humidity, light dependent resistor (LDR), temperature sensor and pump.
- Assembly all the circuit designed and constructs the greenhouse structure by using acrylic.
- Troubleshooting the piping system that can allow water flow, circuit that can operate with each other part.
BLOCK DIAGRAM
This system consists of
three input (temperature, humidity and LDR sensor) and three output (fan, water
pump and Lamp). PIC controller as a main brain for these system because it
control the overall system in a greenhouse. Temperature sensor used to detect
the temperature in a greenhouse. When the temperature sensor detect the high
temperature, microcontroller will send the signal to the fan to stable the
greenhouse condition. Then, when LDR sensor detect no light, microcontroller
will be send the signal to the lamp and lamp will be on automatically. Water
pump is used to supply water to the sprinkler and make sure the sprinkler
watered the plants in a greenhouse.
CIRCUIT DIAGRAM
LAYOUT DIAGRAM
