Mortdecai
74 lines
2.8 KiB
Markdown
74 lines
2.8 KiB
Markdown
# HA + Google Home setup — POS Briefing button
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The MQTT bridge (`pos-briefing-mqtt.service` on steel141) auto-creates an HA
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button via MQTT discovery. Google's `google_assistant` integration does not
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support `button` entities, so we wrap the button in a `script` (scripts expose to
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Google as a **Scene** = a tappable button in the Home app).
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Chain: **Google Home tap → HA script → `button.press` → MQTT `posbriefing/button/press`
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→ bridge runs `pos_briefing.py` → prints on the TM-m30.**
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## 0. Confirm the entity exists
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Settings → Devices & Services → **MQTT** → device **POS Briefing**. You should see
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button **Print Daily Briefing** (entity `button.print_daily_briefing`). Pressing it
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in HA should print a receipt. (Status is published on `posbriefing/status`:
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`idle`/`printing`/`ok`/`error:<msg>`; availability on `posbriefing/availability`.)
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If the entity id differs, use whatever HA shows in the script below.
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## 1. Add the script
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Settings → Automations & Scenes → **Scripts** → (top-right) Edit in YAML, or paste
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into `scripts.yaml`:
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```yaml
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print_daily_briefing:
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alias: Print Daily Briefing
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sequence:
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- service: button.press
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target:
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entity_id: button.print_daily_briefing
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mode: single
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```
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## 2. Expose the script to Google
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Add to the SAME `google_assistant:` block that already exposes the LG TV switch
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(keep your existing `project_id` / `service_account` lines):
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```yaml
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google_assistant:
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project_id: <your existing project_id>
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service_account: !include <your existing service_account file>
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report_state: true
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exposed_domains:
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- switch
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entity_config:
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script.print_daily_briefing:
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name: Print Daily Briefing
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expose: true
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```
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Reload (Developer Tools → YAML → "Google Assistant" or restart HA).
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Reminders from the lgtv 2026-06-06 linking (already satisfied for your setup):
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manual `google_assistant` integration (not Nabu Casa); account-linking scopes must
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include `email` + `name`; the **"HTTP basic auth header" checkbox must be OFF**; the
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Google **Test** must be activated by the same account used in the Home app
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(slingshooter08). The GCP OAuth consent screen is unrelated to smart-home linking —
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don't touch it.
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## 3. Sync to Google Home
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Say "Hey Google, sync my devices" (or re-run device setup in the Home app). The
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button appears as **Print Daily Briefing**; tapping it prints the receipt.
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## Optional: surface print status in HA
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Add an MQTT sensor (configuration.yaml) if you want to see the last result:
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```yaml
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mqtt:
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sensor:
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- name: "POS Briefing Status"
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state_topic: "posbriefing/status"
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availability_topic: "posbriefing/availability"
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```
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## Notes
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- A print takes ~1–2 min (gemma4:26b summarization). The button returns immediately;
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watch `posbriefing/status` go `printing` → `ok`.
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- A second press while one is in flight is ignored (debounced) — no double prints.
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