Development of automatic home plant watering system using soil moisture sensing

Lau, Ghee Siang (2018) Development of automatic home plant watering system using soil moisture sensing. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Most people would prefer an automatic irrigation system to water their home plants regularly due to time constraint on their busy schedule. However, a timer-based automatic irrigation system will cause water wastage if watering occurs during rain. Therefore, this project starts with a research on automatic irrigation systems using sensible soil sensors that are currently available for domestic use. The design of the system will consider how to improve system performance while having lower prices so that most people can also have and use the system. This project is started with the fabrication of the watering system structure before being equipped with electrical and electronic systems. Then, the built up system, programming using an Arduino microcontroller are implemented for the system to handle watering automatically when the soil moisture reach a certain level. Then, several tests were done to assess the accuracy and efficiency of this automatic watering system. Categories of analysis include the cost spent on the automatic watering system in terms of water and electricity. In conclusion, the analysis obtained shows that the soil moisture sensor based automatic watering system has the better performance than the timer-based automatic watering system where it consumed 2.33 % less power in term of the electric consumption. The recommendation given to this project is to add a mobile app that can be used for monitoring and controlling the watering system to water the plants which is always promoted in Industry 4.0 and Internet of Things (IoT).

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