Source: Personal Documents

HYDROMICA TEAM received the Bronze Award at the International Sustainable Ideas through Education, Engineering, and Design (S.E.E.D.) 2025 competition, one of the three UPI representatives who successfully conveyed their ideas about Hydromica (Hydrological Cycle with Microcontroller) at Sanata Dharma University Yogyakarta on July 16th - 18th, 2025.

The team was led by Sephianti Dwika Ezha from the 2022 Chemistry Education study program, with members De Shila Syailinda Maulida from the 2022 Biology study program, and Khrisna Wahyu Wibisono from the 2022 Computer Science Education study program. It is one of the three UPI contingents who brought their projects to compete in the 2025 International Sustainable Ideas through Education, Engineering, and Design (S.E.E.D.) competition.

The initial idea of this team project was not about the water cycle, but about chemistry on one of the atomic theories. However, after further discussion we decided to create a more general science learning media that has aspects of biology, chemistry, and geography and has a broad impact and can be applied by many students and educators with a high level of complexity such as the water cycle.

We surveyed junior and senior high school in West Java students before making this media, and got a response that many still find it difficult to make this cycle because it has many stages. Also, educators have not been able to maximize in explaining this material due to the limitations of learning media that only describe the water cycle in text and 2D in the form of explanations, images, videos, or even mockups. However, it cannot describe the real process of the water

cycle. Increased understanding of education is crucial to advancing Indonesia, because students will become agents of change. As a prospective educator, there are still many things that are difficult to make students understand about water cycle learning.

Source: Personal Documents

“I really like to compete and have a lot of ideas, I am interested in making students understand more about what they learn at school, I found this during a teaching internship at one of the Bandung City High Schools. This made me think to be able to help facilitate the teaching and learning process, one of which is by making learning media. Previously, I had also made a flipbook learning media with augmented reality about nanotechnology material which received champion appreciation at the PKM AMLI competition. This time I tried something different, because my brainstorming partner was De Shila from biology so we decided to make media with a science background, namely the water cycle.” said team leader, Sephianti Dwika Ezha.

This media is designed to suit all learning styles - kinesthetic, visual and auditory. All learning styles are adapted and with 3D media we hope that there can be interaction between students and the media we create. We use microcontroller technology to manage the sensors of the running cycle from the initial stage to the final stage and keep repeating.

“In arranging the electricity to manage the microcontroller on the hydromica, I think with tight spaces it is quite difficult due to cable management issues and lack of understanding of the module current load. Thus, it is necessary to perform diagnostics to find the cause of system problems. In addition, components must be kept out of direct contact with water to avoid damage. I was hesitant at first because I had to delve deeper into microcontrollers, but because of the supportive team and surroundings. Finally, I accepted the new challenge and was able to adapt and work together with the team to achieve better results.” said the technician, Khrisna Wahyu Wibisono.

This project was made in Fabrication Laboratory Building C FPMIPA UPI, 1st floor. At first we were not sure with a short time we could complete our project optimally, but we were convinced and optimistic with our efforts and hard work.

“I like new things, even though my background is not from education I am very interested in this learning media because the idea is also a biogeochemical cycle so there is still a connection with biology. In this team I learned a lot of new knowledge of Tinkercad software, Bamboo Studio, Flashprint for 3d printing needs, thanks to the support of my team members, it made it easier for me to learn everything so that projects could run well and be completed on time. “-said the designer, De Shila Syailinda Maulida.

The process of making our project did not escape the help of many parties such as our supervisor Mrs. Triannisa Rahmawati, S.Pd., M.Si., who was always on standby to provide input, assist, and be contacted anytime and anywhere. In addition, we were also accompanied by Dr. rer. nat. Omay Sumarna, M.Si., who gave input on how we presented the background of the problem of the project. This is how he sees our project and cooperation in making hydromica.

Source: Personal Documents

“The hydromica team has good cooperation and is compact in doing its work, even though the work is only for a short time, they can complete it well and get satisfying results.” the opinion of Mrs. Triannisa Rahmawati, S.Pd., M.Si.

In addition, we received a sentence of praise from Mr. Omay after our presentation, “Es ist gut gegangen.” he said in German.

In addition to the help of the supervisor, we also discussed with Mr. Rudi who is a person who works in the FPMIPA Workshop Room. And asked for some help in the process of making our project. According to Mr. Rudi, the idea we made was fresh and had good teamwork.