The Maker Buoy is a solar-powered, Arduino-based research buoy that measures ocean drift and sea temperature and carries a RockBLOCK 9603 to transmit position, water temperature, and other data via the Iridium satellite network.
The unit can be built by hobbyists, researchers, and meteorological organisations, and data shared is used to further our understanding of our oceans.
Maker Buoy supplies various options: a bare PCB, a populated PCB, a complete kit for the end-user to construct themselves, and a complete unit. One of the most notable users of Maker Buoy is The Ocean Cleanup.