NowYouSea OpenCTD : open hardware low-cost underwater acoustic and CTD monitoring stations. LoRa mesh, Raspberry Pi + ESP32, field-validated 2025.
raspberry-pi esp32 open-hardware oceanography france underwater-acoustics citizen-science bretagne ctd low-cost hydrophone lora-mesh marine-monitoring openctd nowyousea
-
Updated
May 7, 2026