Our Legacy, Write Hemisphere Together through a Story

After so many chapters that we have gone through together, Hemisphere is ready to face the world of sustainability independently and continuously. From our social actions and initiatives, we launched our first project, the PLUME Project, driven by the principle that every action can significantly impact the fight against plastic waste. Collaborating with the Interact Club (10+ members), we successfully placed our school as a good example in the Adiwiyata National Survey for cleanliness and overall improved hygienic credibility nationally. Continuing this momentum after repurposing 19 kg of waste to Paste Lab and Bank Sampah Lintas Winongo, we also managed to invite high school ambassadors from 53 schools all across Indonesia to participate in the Blue Pledge—a hybrid campaign against plastic waste that emphasized green school initiatives. In tandem, we secured project funding through the international competition Global Youth Action Fund by the IB Organization, Switzerland, amounting to $1,512 USD, ready to be put to better use. Another notable initiative we introduced is the “Trash to Treasure” (TREATY) competition, which was held nationwide with over 30 teams participating from SD Angkasa, particularly focusing on offline engagement.

However, we also realized that it is not enough to only act socially but also scientifically. From this realization, we initiated our own research and development programs to attain sustainability. One of our breakthroughs is the Hemisphere 5.0 Trash Collector Ship, an advanced IoT-enabled autonomous vessel designed to address the pressing issue of plastic waste in rivers. The vessel operates independently to efficiently collect plastic waste and other debris from waterways, integrating IoT capabilities to target high-density waste areas and optimize its collection process. It goes beyond mere cleanup; the Trash Collector Ship is equipped with systems for comprehensive data collection and environmental monitoring. These features allow for the analysis of waste accumulation patterns and the long-term tracking of river health, supporting data-driven decision-making for sustainable waste management. The ship embodies Hemisphere’s commitment to developing transformative technologies for environmental preservation and fostering long-term sustainability.

Another solution we developed is Hawkeye, a systematic approach to advancing waste sorting through an IoT-based system designed to optimize waste management via real-time data collection and visualization. The core hardware consists of a NodeMCU ESP8266 microcontroller paired with an HC-SR04 ultrasonic sensor, housed in a 3D-printed enclosure. The sensor measures the “fullness” of trash cans by calculating the distance between the sensor and the accumulated waste. This data is converted into a percentage of fullness and transmitted hourly via Wi-Fi to the Hemisphere Project's server. The information is stored in InfluxDB, an open-source time-series database, and visualized on a user-friendly dashboard developed with NextJS. The dashboard displays a map of monitored trash cans and provides detailed information for efficient monitoring and route optimization. By integrating IoT technology with robust data management, Hawkeye streamlines waste collection processes, enhances operational efficiency, and supports scalable waste management solutions. The dashboard is available at https://hawkeye.hemisphereproject.com/

Lastly, our social media presence has grown into a platform that connects diverse youths and communities, attracting more than 1,000 followers. With this continuous and gradual growth, we hope to foster collective love and awareness for our environment, even as high school students.

Hemisphere Team, signing out.