claudetools/projects/wrightstown-smarthome/PROJECT_INDEX.md

Wrightstown Smart Home - Project Index

Project: Smart Home + Local LLM + Hybrid AI Bridge Location: Wrightstown (home) Status: Planning / Research Phase Created: 2026-02-09 Last Updated: 2026-02-09

Related Project: projects/wrightstown-solar/ (Victron integration crossover)

---

Project Overview

Privacy-first smart home system using Home Assistant Yellow with local voice control, a dedicated local LLM server, and a hybrid routing bridge that keeps private data local while leveraging Claude and Grok APIs for tasks requiring external search or heavy reasoning.

Design Goals

1. No Google/Alexa dependency -- fully local voice control
2. Local LLM for private queries (home automation, sensor data, cameras)
3. Hybrid bridge to Claude API (reasoning) and Grok API (internet search)
4. Privacy-first: private data never leaves the network
5. Network segmentation (VLANs) for IoT isolation
6. Integration with Victron solar system (future crossover with wrightstown-solar project)

Hardware Inventory

Component	Status	Notes
Home Assistant Yellow	Owned (not set up)	Needs CM4/CM5 module
LLM Server	Not purchased	RTX 4090 build recommended
Network gear (VLANs)	TBD	Ubiquiti or TP-Link Omada
Wyoming voice satellites	Not purchased	For room-by-room voice control

Architecture

            Voice Satellites (Wyoming)
                    |
            [Home Assistant Yellow]
              /     |        \
        Zigbee    Victron    LLM Integration
        devices   Modbus     (Extended OpenAI Conversation)
                                |
                        [LiteLLM Proxy]
                         (routing layer)
                        /       |       \
                  [Ollama]  [Claude]  [Grok]
                  Local     Anthropic  xAI
                  $0/mo     API        API
                  Private   Reasoning  Search

---

Files

Documentation

File	Description
documentation/ha-yellow-setup.md	Home Assistant Yellow setup and voice assistant config
documentation/llm-server-build.md	Local LLM server hardware, software, and model selection
documentation/hybrid-bridge.md	LiteLLM routing, Claude/Grok API integration, privacy layer
documentation/network-security.md	VLAN architecture, IoT isolation, PII sanitization

Session Logs

File	Description
session-logs/2026-02-09-session.md	Initial research and planning session

---

Budget Estimate

Phase 1: Home Assistant Yellow Setup

Component	Est. Cost
RPi CM4 4GB/32GB (if not owned)	$45-75
NVMe SSD (512GB-1TB)	$40-80
Phase 1 Total	$45-155 (Yellow already owned)

Phase 2: LLM Server (Sweet Spot Build)

Component	Est. Cost
RTX 4090 24GB	$1,200-1,500
Ryzen 7 5800X3D + B550 + 64GB DDR4	$490
Storage, PSU, case	$190
Phase 2 Total	$1,880-2,180

Phase 3: Network + Voice

Component	Est. Cost
VLAN-capable router + managed switch	$150-760
Wyoming voice satellites (2-3 rooms)	$100-200
Phase 3 Total	$250-960

Ongoing Monthly

Item	Est. Cost
Cloud API (Claude + Grok, 80/15/5 split)	~$5/mo
Electricity (LLM server)	~$15-30/mo
Monthly Total	~$20-35/mo

---

Decision Log

Date	Decision	Rationale
2026-02-09	Home Assistant over Google/Alexa	Privacy, local control, open source
2026-02-09	HA Yellow (already owned)	Built-in Zigbee, NVMe slot, still receives updates
2026-02-09	Ollama for local LLM	Simplest setup, OpenAI-compatible API, huge model library
2026-02-09	LiteLLM for hybrid routing	Unified API, cost tracking, fallback support
2026-02-09	Claude API for reasoning	Best quality reasoning, function calling for HA
2026-02-09	Grok API for search	Internet access, 2M token context, X integration
2026-02-09	Separate project from solar	Different build timelines, but Victron crossover planned

---

Implementation Roadmap

• Phase 1 (Week 1-2): Set up HA Yellow, basic automations, Zigbee devices
• Phase 2 (Week 3): Install Wyoming + Whisper + Piper for local voice
• Phase 3 (Week 4): Build LLM server, install Ollama, test models
• Phase 4 (Week 5): Set up LiteLLM proxy, add Claude + Grok API keys
• Phase 5 (Week 6): Integrate LLM with HA via Extended OpenAI Conversation
• Phase 6 (Week 7): Network segmentation (VLANs), PII sanitization
• Phase 7 (Future): Victron solar integration (crossover with wrightstown-solar)

---

Crossover with Wrightstown Solar

When the Victron MultiPlus II + Cerbo GX are installed:

• Modbus TCP integration from Cerbo into Home Assistant
• Energy dashboard with solar production + battery SOC
• Solar-aware automations ("run dishwasher when battery > 80%")
• LLM-powered energy analysis ("analyze my usage trends this week")
• See: projects/wrightstown-solar/ for full solar system design