Development Of Small Volume Watering & Soil Cooling System By Using Microcontroller

Ng, Liaw Yong (2017) Development Of Small Volume Watering & Soil Cooling System By Using Microcontroller. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Important of water to the plant ignite the creation of intelligence watering system. Small scale smart watering system such as microcontroller based watering system can be seen during these days. Thus for this project a small volume watering system and soil cooling system will be developed. Current small scale microcontroller based watering system is not good enough and not suitable able for some plants in term of watering volume. for example strawberry plant are very sensitive to water logging, using water pump based smart watering system might cause water logging and the risk of rotten strawberry plant crown. besides that, strawberry seed required specific soil temperature for germinate where state Melaka, Malaysia soil temperature is not suitable for strawberry seed germination due to out of temperature range. So in methodology, to control the water volume of watering system, a small plastic tube will be use to control the water flow to the soil based on the plastic tube bending angle that controlled by the servo motor. The water flow rate will be monitored by a sensor that acts as feedback to the microcontroller for regulated water flow rate accordingly. As for soil cooling system for seed germination purpose, a Peltier module that controlled by the microcontroller will be used to coil down the soil to a temperature value. From the results, the small volume watering system are capable to supply vary small water volume to the soil range from minimum 15 micro liter of water per minute to maximum 0.3milli liter of water per minute. As for soil cooling system, it is capable to cool down soil temperature from approximately 30°C to lowest temperature 20°C. From the project finding, during the small volume watering system development process, the bending angle of the plastic tube does't has linear relationship with the water flow rate. As a conclusion, small volume watering system has high potential in commercial and used for others application such as in medical field, agricultural field, chemical field and etc.

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