There are several ocean science community-developed and supported software resources available for LISST and Hyper users interested in logging and/or processing data in other ways than supported by Sequoia’s standard software:
PyOPIA
PyOPIA is a Python-based ocean particle image analysis toolbox. Developed initially by Dr. Emlyn Davies (SINTEF) and Dr. Alex Nimmo Smith (Plymouth University), PyOPIA provides a pipeline-based workflow as a standard for analysis of particle images in the ocean. The pipeline should be consistent across different instruments (hardware), and PyOPIA therefore has flexibility to adapt analysis steps to meet instrument-specific processing needs (i.e., holographic reconstruction). PyOPIA is hardware agnostic and can be used with *any* hardware used for capturing images of oceanic particles: LISST-Holo2, UVP, IFCB, SilCam, FlowCam, PlanktoScope, CytoSub, LOPC, iCPRholo etc. etc.
Code repository on Github, here.
Inlinino
Inlinino is an open-source software data logger for oceanographers developed primarily by Dr. Nils Haentjens (University of Maine). It primarily records measurements from optical instruments deployed on research vessels during month long campaigns. It provides real-time visualization, which helps users troubleshoot instruments in the field and ensure collection of quality data. As of June 2026, Inlinino supports Sequoia’s Hyper-bb and LISST-100X instruments.
See Haentjens, N. and Boss, E., 2020. Inlinino: A Modular Software Data Logger for Oceanography. DIY Oceanography. DOI: 10.5670/oceanog.2020.112
Code repository on Github, here.
InlineAnalysis
InLineAnalysis provide a set of routine to process observations from scientific instrumentation collected under the way of research vessels. Dr. Nils Haentjens (University of Maine) primarily developed this code. It synchronizes data streams from each instrument, separates periods when different water types pass through the instruments (Filtered, Total, DIW), averages data every minute, and performs both manual and automatic quality checks (QC). It also calibrates, adjusts, and computes products from the raw data. Users can export the output in SeaBASS format for community sharing. As of June 2026, InlineAnalysis supports Sequoia’s Hyper-bb. LISST-100X, LISST-200X and LISST-Tau instruments.
Code repository on Github, here.
Disclaimer
Sequoia is not involved in the development or support of these community based efforts. Reach out to the developers of the respective routines for questions.