The main aim of this project is to design a simple, low cost system to monitor the value of environmental parameter and they are continuously updated and controlled in order to achieve optimum plant growth. A greenhouse provides an environment to grow plants all year round, even on cold and cloudy days. In order to achieve maximum plant growth, the continuous monitoring and controlling of environmental parameter such as temperature, soil moisture ,light intensity, humidity etc. Greenhouse is a controlled area environment to grow plants. Regularly unmistakable light correspondence is done utilizing LED's Key Words: -Li-Fi, Wi-Fi, LED, photodiode, VLC. Here we exhibit the information exchange strategy utilizing LED's and a photodiode by utilizing serial correspondence. This paper concentrates on building up a Li-Fi based framework and investigates its execution as for existing innovation. Li-Fi gives better transfer speed, productivity, accessibility and security than Wi-Fi Data transmission happens from this LED knob by differing the current at to a great degree high speeds which can't identify by the human eye. Li-Fi is a piece of the VLC as is actualized utilizing white LED lights. Li-Fi innovation, talked by the German physicist-Harald Haas, gives transmission of information through enlightenment by sending information through a LED light that fluctuates in force quicker than the human eye can follow.Li-Fi is another period of high power light source which convey clean lighting answers for general and claim to fame lighting. The improvement of the wireless communication leads to advance research in LiFi technology through Visible Light Communications (VLC) Technology. This paper objective is to study and describe the LiFi technology. To resolve the issues of scalability, availability and security, we have come up with the concept of transmitting data wirelessly through light using visible light communication (VLC) technology.
With the innovation in technology and the number of users, the existing radio-wave spectrum fails to accommodate this need. The immense use of Li-Fi may solve some bottleneck of data transmission in Wi-Fi technology. Li-Fi comprises a wide range of frequencies and wavelengths, from the Infrared through visible and down to the Ultraviolet spectrum. The term Li-Fi states to visible light communication (VLC) technology that uses as medium to deliver high-speed communication in a fashion similar to Wi-Fi. The development of the wireless communication leads to advance research in LiFi technology. Li-Fi is a wireless technology that uses light emitting diodes (LEDs) for transmission of data. Light based communication system is the backbone of the future of the communication system. This technology is very new and was proposed by the German physicist Harald Haas in 2011.
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