Open science for photosynthesis research
openJII connects your devices, experiments, and data in one open platform. These docs take you from your first measurement to shared, analysis-ready datasets.
Measure
Handheld MultispeQ readings through the offline-first mobile app, plus continuous Ambyte sensor ingestion.
Analyze
Experiment data lands in searchable tables with built-in visualizations, five export formats, and macro-based analysis.
Share
Invite collaborators with clear roles, keep data private under embargo, and publish it openly when you are ready.
Researcher GuideCreate an account, set up an experiment, measure with your MultispeQ, and view, export, and share your data.Read the guide →DevelopersSystem architecture, the data pipeline, design decisions (ADRs), the MultispeQ MQTT tool, and how to contribute.Explore internals →API ReferenceThe generated REST (OpenAPI) and MQTT (AsyncAPI) contracts, always in sync with the platform code.Browse the APIs →
openJII is open source: star or contribute on GitHub.