Researchers at the Estonian Institute of Computer Science at the University of Tartu have proposed an unusual way to combat electronic waste. Instead of recycling or burying smartphones, scientists have found a new use for them – in the field of data processing.
More than 1.2 billion smartphones are produced worldwide each year, and their average lifespan is only 2–3 years. A project by Estonian scientists shows that even outdated devices can effectively perform computing tasks.
The authors replaced the batteries with external power sources, connected four smartphones into the system and placed them in 3D-printed cases. The cost of one such miniature data center was about 8 euros. One of the possible applications of the technology is data collection. Such systems can be placed at bus stops to monitor passenger flow and optimize routes.
During testing, the prototype successfully worked underwater, automatically analyzing marine fauna, which usually requires the participation of divers. The development demonstrates that old electronics can be converted into eco-friendly digital solutions with minimal costs, reducing the burden on the environment.