Crab is one of protein resource with high economic value. The vertical system is a crab farming method that provides several advantages including increasing space utility, minimizing crab mortality that is affected by cannibalism, and improving precision farming. As a continuation of 2024 research under the strategic collaboration (Katalis) scheme, a community service project has been conducted by implementing the Internet of Things (IoT) based water monitoring system to support precision farming in vertical system-based crab farming. Surabaya crab supermarket has become the partner in this community service. The objective of this activity is to implement this prototype in the real crab farming environment to investigate its effectiveness. This activity also gives experience for students at Telkom University that are involved in this project of implementing the developed precision farming system in the real environment despite the laboratories scale environment. Moreover, this project is also important to give insight from the crab farmer regarding the real problems that occur in crab farming. In the future, the system can be expanded by adding more features including the machine learning method to give predictions regarding the water quality and the growth of the crabs.

Agriculture is a vital component of the economy and livelihoods in Indonesia, particularly in Sukamaju village, West Java, Indonesia. Many local farmers rely on traditional farming management methods, which hinder efficiency and productivity due to challenges such as manual data entry, inadequate tracking of crop yields, and limited avenues for product promotion. To address these issues, an Agricultural Management Web Application was developed to streamline the management of agricultural activities within the community. This user-friendly platform allows farmers to input and monitor essential data about their crops, thereby enhancing informed decision-making. Additionally, the application features a blog system for promoting agricultural products, helping farmers reach a wider audience and improve their sales prospects. Key objectives of the application include improving documentation and monitoring of agricultural processes, fostering community engagement through knowledge sharing, and providing promotional tools for farmers. By leveraging technology, this initiative aspires to establish a sustainable agricultural environment that supports the growth of the farming community in Sukamaju village. In the future, this application can be expanded to create a more comprehensive supply chain management system for farmers in a broader area. The feature also can be expanded so that the farmers can connect to the other players whether in the upstream and the downstream.