98 lines
3.5 KiB
Markdown
98 lines
3.5 KiB
Markdown
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---
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growth: sprout
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---
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# Concepts — HHS Hackers
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Hardware/software hacking collective. Chris + former students (Matt, Kyle).
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## Active Projects
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| Project | Status | Key Concepts |
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|---------|--------|---------------|
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| ComBadge | Research | ESP32-S3, wearable, voice AI, PicoClaw, Wi-Fi |
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| Tricorder | Design | ESP32-S3, sensors, UniHiker, voice, PicoClaw |
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| Pi-hole Router | Planning | DNS, firewall, router, CM4, VLAN, network config |
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| AI Rig Upgrade | GPU Shopping | GPU Passthrough, Ollama, local AI inference |
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| Android Head Unit | Planning | CAN bus, car telemetry, voice AI, head unit |
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| AI Desktop Companion | Research | M5Stack, StackChan, voice robot |
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| Brewery PID Replacement | Prototyping | ESP32-S3, ESPHome, Home Assistant, PID, PT100 |
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## Core Skills
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- **ESP32-S3** — embedded development, low-level hardware
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- **Voice AI** — hotword detection, speech-to-text, local LLM
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- **Home networking** — DNS, DHCP, firewall, VLAN, router config
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- **Home Assistant** — home automation, dashboarding, integrations
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- **Hawk** — multi-agent systems, exec management
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- **Docker** — containerized services
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- **CAD/3D printing** — case design
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## Knowledge Dependencies (Skills needed for projects)
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```
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ESP32-S3 dev
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├── C/Arduino SDK
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├── esp-idf or Arduino framework
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├── I2C/SPI protocols
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├── Wi-Fi (station + AP modes)
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└── BLE (optional)
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Voice AI
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├── Wake word / hotword detection
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├── Speech-to-text (on-device or API)
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├── Local LLM integration
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└── Text-to-speech
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Home Networking
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├── DNS fundamentals ← Pi-hole requires this
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├── DHCP fundamentals
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├── Port forwarding / NAT
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├── Firewall rules (iptables/nftables)
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├── VLANs ← Natural next step after basic networking
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└── VPN basics
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Home Assistant
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├── YAML configuration
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├── ESPHome integration
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├── Entities, automations
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└── Dashboard (HA Lovelace)
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ComBadge / Tricorder
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├── ESP32-S3
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├── Sensor selection / I2C
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├── Battery management
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├── Enclosure design
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└── Voice AI pipeline
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Pi-hole Router
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├── DNS ← FOUNDATION (needed first!)
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├── DHCP
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├── Network routing
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├── Firewall
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├── VLANs ← after basic networking
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└── VPN (optional, advanced)
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```
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## Gap Analysis for Chris
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Chris is strong on: hardware, ESP32, soldering, circuit design
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Chris is weak on:
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- **Networking fundamentals** — DNS, DHCP, VLANs, firewall rules. He keeps running into networking gaps when doing Pi-hole and router projects. This is the biggest gap.
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- **3D CAD** — designing cases/enclosures. Has printer but not using it effectively for project enclosures.
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- **Software architecture** — can build circuits but wiring multiple services together (Home Assistant, ESPHome, dashboards) takes too long.
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## Gap Detection Map
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When Chris works on:
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- **Pi-hole** → He needs DNS fundamentals first, then DHCP, then firewall, then VLANs
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- **ComBadge/Tricorder** → He knows ESP32 well, but voice AI pipeline is new. Needs hotword → STT → LLM → TTS understanding.
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- **Brewery PID** → He's learning ESPHome + Home Assistant integration, which is mostly YAML config.
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## Recurring Topics
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1. **ESP32-S3** — appears in ComBadge, Tricorder, PID controller, AI Desktop Companion
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2. **Voice AI** — ComBadge, Tricorder, Android Head Unit, AI Desktop Companion
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3. **Home networking** — Pi-hole, VLANs, router replacement
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4. **Local AI inference** — Ollama, GPU setup, ComBadge backend
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5. **Home Assistant** — fermentation dashboard, PID controllers, automation
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