jpmschweitzerandClaude Fable 5
576fd7d237
DeskLock gives the Tatlock butler a face and voice on a Waveshare ESP32-P4-WIFI6-Touch-LCD-3.4C round display in the living room. - firmware/: ESP-IDF project targeting esp32p4 with the Waveshare XC BSP - gateway/: FastAPI voice bridge (faster-whisper STT, Tatlock chat, Piper TTS) - docs/architecture.md: component design and device<->gateway WS protocol Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
73 lines
4.0 KiB
Markdown
73 lines
4.0 KiB
Markdown
# DeskLock
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A living-room visual/audio endpoint for **Tatlock**, the homelab butler. DeskLock gives
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Tatlock a face and a voice on a Waveshare round touch display: you talk to it, it listens,
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thinks, and answers — the first line of contact with the butler backend running on
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tower-of-joy.
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## Hardware
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**Waveshare ESP32-P4-WIFI6-Touch-LCD-3.4C**
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| Component | Details |
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|-----------|---------|
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| SoC | ESP32-P4NRW32 — dual-core RISC-V @ 400 MHz + LP core |
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| Memory | 32 MB PSRAM (in-package), 32 MB NOR flash |
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| Display | 3.4" round IPS, 800×800, MIPI-DSI 2-lane, capacitive touch |
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| Radio | ESP32-C6-MINI-1 (Wi-Fi 6 + BLE 5) over SDIO via ESP-Hosted |
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| Audio in | Dual onboard microphones + ES7210 echo-cancellation ADC |
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| Audio out | ES8311 codec, PH2.0 2-pin speaker connector (8Ω 2W recommended) |
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| Flashing | USB-C (hold BOOT during reset for download mode) |
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The device is currently connected over USB-C directly to tower-of-joy, so build/flash
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happens on this server.
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## Architecture
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```
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┌─────────────────────┐ WebSocket (PCM audio + JSON events)
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│ DeskLock device │◄──────────────────────────────────────────┐
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│ (ESP32-P4) │ │
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│ │ ┌──────────────────────────────────┴──┐
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│ • LVGL face │ │ DeskLock Gateway (container) │
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│ • Touch input │ │ on tower-of-joy │
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│ • Mic capture+AEC │ │ │
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│ • TTS playback │ │ • STT: faster-whisper (GPU) │
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└─────────────────────┘ │ • TTS: Piper │
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│ • Chat: Tatlock /v1/chat/completions│
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└──────────────────┬───────────────────┘
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│ HTTP (LAN, :8000)
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┌──────────┴──────────┐
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│ Tatlock (butler) │
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│ tatlock.schweitz. │
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│ internal │
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└─────────────────────┘
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```
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Tatlock stays a text-only brain. The **gateway** is Tatlock's ears and mouth: it converts
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speech to text on the way in and text to speech on the way out, keeping the device firmware
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thin (audio transport + face rendering only).
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See [docs/architecture.md](docs/architecture.md) for the full design.
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## Repository layout
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- `firmware/` — ESP-IDF (C, LVGL 9) application for the ESP32-P4
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- `gateway/` — Python FastAPI voice gateway, deployed as a container on tower-of-joy
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- `docs/` — architecture and design notes
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## Roadmap
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1. **Bring-up** — ESP-IDF toolchain, build/flash, BSP display + Wi-Fi working
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2. **Face** — LVGL face with idle/listening/thinking/speaking states, clock while idle
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3. **Voice (touch-to-talk)** — tap to talk → gateway → Tatlock → spoken reply
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4. **Wake word** — esp-sr WakeNet on-device, echo cancellation, barge-in
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5. **Polish** — Tatlock-initiated notifications, presence, OTA updates
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## References
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- [Waveshare wiki: ESP32-P4-WIFI6-Touch-LCD-3.4C](https://www.waveshare.com/wiki/ESP32-P4-WIFI6-Touch-LCD-3.4C)
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- [Official examples repo (waveshareteam/ESP32-P4-WIFI6-Touch-LCD-XC)](https://github.com/waveshareteam/ESP32-P4-WIFI6-Touch-LCD-XC)
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- [BSP component: waveshare/esp32_p4_wifi6_touch_lcd_xc](https://components.espressif.com/components/waveshare/esp32_p4_wifi6_touch_lcd_xc)
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- Tatlock backend: `/mnt/media/Projects/tatlock` — https://tatlock.schweitz.net
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