Development of autonomous IoT hydroponic system

Sabaruddin, Dzaki Dziauddin (2022) Development of autonomous IoT hydroponic system. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

In an uncontrolled environment, the consequences of global warming make planting more difficult. In recent years, the digital divide between agricultural production and Internet of Things (IoT) technologies has narrowed. In the future, these technologies will allow for increased productivity through sustainable food cultivation, and environmental protection through effective water use and input and treatment optimization. Traditional agriculture often uses excessive amount of fertilizer and this increase amount of cost in producing food. Hence, this will contribute to higher inflation and will affect on food security chain. Therefore, fertilizer needed to be control on exact amount to reduce the cost of production. One of the techniques is by utilizing the internet-of-things (IoT) technology in hydroponics system. The goal of this project is developed IoT based system that can monitor and control the amount of liquid A&B fertilizer for hydroponics agriculture. Two nodeMCU ESP32 is used, at the endpoint will collect all data from sensors including PH, humidity, and temperature. These sensors data are transmitted to another nodeMCU (master node) wirelessly up to 70m range. The master node received all raw sensors data, display it on LCD, connected to indoor Wi-Fi, and send data to Cayenne IoT platform. All of sensors data from node 1 can be monitored on Cayenne dashboard. PH reading will be always monitor by nodeMCU and if needed, it will turn on the pump through connected relay and flow the A&B fertilizer into the hydroponics system. The automatic system is successfully developed where PH reading, temperature, and humidity can be accessed on Cayenne dashboard. Besides, this system greatly reduces the excessive amount of fertilizer usage and very effective in the area where no WiFi coverage.

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