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Document Hermes Ink Chat prototype loop

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aeroreyna
2026-07-16 18:58:11 -04:00
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projects/remarkable_hermes_communication_app.md
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@@ -37,7 +37,11 @@ Initial SSH-based proof of concept works.
- `ABS_PRESSURE`: `0..4096`
- `ABS_DISTANCE`: `0..65535`
- `ABS_TILT_X/Y`: `-9000..9000`
- Next implementation should use a native C++ pen input reader for `/dev/input/event2` and a throttled/custom painted item instead of reparsing/repainting a QML Canvas on every move.
- Native C++ pen app now reads `/dev/input/event2`, maps marker coordinates through full-screen-to-local drawing-area offset, gates drawing on `BTN_TOUCH` or `ABS_PRESSURE >= 80` so hover/proximity does not draw, and throttles repaint to reduce e-paper churn.
- `Send to Hermes` saves SVG ink to `/home/root/hermes-chat/outbox/ink-native-*.svg` and updates `/home/root/hermes-chat/outbox/latest.txt`.
- Pulled latest SVG from tablet, converted to PNG, and Hermes vision read the handwriting as: `Hey there Pal!`
- App build `bd5b992d...` adds inbox polling: it checks `/home/root/hermes-chat/inbox/response.txt` every ~2s and updates the console when Hermes writes a response.
- Remaining work: create the automatic bridge loop that watches/pulls `latest.txt`, sends the image to Hermes/OCR, and writes `/home/root/hermes-chat/inbox/response.txt`; current test response was written manually.
Hermes can:
- Connect to the reMarkable via SSH alias `remarkable`.