Helianthus eBUS Documentation

This repository documents the current, implemented behavior of the Helianthus eBUS ecosystem:

• helianthus-ebusgo (transport + protocol + data types)
• helianthus-ebusreg (registry + schema + vendor providers)
• helianthus-ebusgateway (runtime + GraphQL/MCP + projection browser/Portal surfaces)

Implementation-neutral references for the eBUS wire protocol and data types live under protocols/ and types/. Helianthus-specific architecture, APIs, and deployment notes live elsewhere in the tree.

Gateway HTTP entrypoints are split by role: /ui is the read-only projection browser, while /portal is the Portal shell and /portal/api/v1 is its versioned API surface.

Start Here by Role

• Developer path: architecture/overview.md → api/graphql.md → api/mcp.md → api/portal.md → development/contributing.md
• Operator path: deployment/full-stack.md → development/end-to-end-smoke.md → development/smoke-test.md
• Researcher path: protocols/ebus-services/ebus-overview.md → types/overview.md → architecture/vaillant.md

Documentation Map

Area	Start docs
Architecture	architecture/overview.md, architecture/decisions.md, architecture/mcp-first-development.md, architecture/nm-model.md, architecture/nm-discovery.md, architecture/nm-participant-policy.md
Protocols	protocols/ebus-services/ebus-overview.md, protocols/ebusd-tcp.md, protocols/vaillant/ebus-vaillant.md, protocols/vaillant/ebus-vaillant-B513.md, protocols/vaillant/ebus-vaillant-B514.md, protocols/vaillant/ebus-vaillant-B515.md, protocols/vaillant/ebus-vaillant-B521.md, protocols/vaillant/ebus-vaillant-B522.md, protocols/vaillant/ebus-vaillant-B523.md, protocols/vaillant/ebus-vaillant-B524.md, protocols/vaillant/ebus-vaillant-B524-register-map.md, protocols/vaillant/ebus-vaillant-b524-research.md, protocols/vaillant/ebus-vaillant-b555-timer-protocol.md, protocols/brink/brink-40xx.md, protocols/wolf/wolf-protocols.md, protocols/weishaupt/weishaupt-wrsol.md, protocols/weishaupt/kromschroeder-5000.md
Types	types/overview.md, types/primitives.md, types/composite.md
API	api/graphql.md, api/mcp.md, api/portal.md
Deployment	deployment/full-stack.md, deployment/tinygo-esp32.md
Development	development/contributing.md, development/conventions.md, development/ha-integration.md
Firmware	firmware/pic16f15356-overview.md, firmware/pic16f15356-pinout.md, firmware/pic16f15356-fsm.md, firmware/pic16f15356-timing.md, firmware/pic16f15356-registers.md

Contribution Workflow (Doc-Gate)

• Tier 1 (merge-blocking): changes to architecture, API surface, or runtime behavior must update docs in the same PR; see Trigger Matrix.
• Tier 2 (non-blocking): internal-only refactors with no external behavior change may skip doc edits, but must include a short rationale in the PR description; see Trigger Matrix.
• Author flow: classify the change, update required docs, and complete the PR Author Checklist.
• Reviewer flow: verify classification and documentation coverage using the Mandatory Gate Flow.
• Canonical policy: development/contributing.md#documentation-gate-doc-gate

Local CI (no GitHub Actions required)

Run:

./scripts/ci_local.sh

Licensing

This repository contains documentation under two licenses:

• protocols/ and types/ – CC0-1.0 (public domain). These describe the eBUS wire protocol and data type formats as reverse-engineered from the bus. Anyone can use, modify, or republish this material without restriction.

• Everything else – AGPL-3.0. This documents the Helianthus implementation specifically. See the root LICENSE file for terms.