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Decision 30: OBD-only values may be shown under obd_ names; DTCs via the ELM; classic Bluetooth first
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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DDwfd6Ki8UfG4hK6W5YpJz
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Mikkeli Matlock
2026-10-13 22:33:18 +09:00
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docs/ARCHITECTURE.md
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| 27 | Camera live view is the one video stream to the tablet: its own connection beside the boundary, paced to the link (≤ ~4 MB/s), never on the bus. Exception to 20 | **Proposed** | 2026-10-11 | | 27 | Camera live view is the one video stream to the tablet: its own connection beside the boundary, paced to the link (≤ ~4 MB/s), never on the bus. Exception to 20 | **Proposed** | 2026-10-11 |
| 28 | Every Orin → tablet sender caps its socket (`SO_MAX_PACING_RATE`, ~5 MB/s); unpaced bursts stall the USB link for seconds | **Proposed** | 2026-10-11 | | 28 | Every Orin → tablet sender caps its socket (`SO_MAX_PACING_RATE`, ~5 MB/s); unpaced bursts stall the USB link for seconds | **Proposed** | 2026-10-11 |
| 29 | `svc-vision` is Python: camera pipelines and inference live in that ecosystem. Exception to 5 | Accepted | 2026-10-12 | | 29 | `svc-vision` is Python: camera pipelines and inference live in that ecosystem. Exception to 5 | Accepted | 2026-10-12 |
| 30 | The car's CAN broadcast is the source for every displayed vehicle value. OBD-II (K-line, ISO 9141-2, through the Bluetooth ELM327) is calibration only, recorded beside the frames and never shown as the primary value; GNSS speed is shown beside the decoded speed, to show their error | Accepted | 2026-10-13 | | 30 | The car's CAN broadcast is the source for every displayed vehicle value. OBD-II (K-line, ISO 9141-2, through the Bluetooth ELM327) is calibration, recorded beside the frames; a value proven absent from CAN may be displayed from OBD-II, and keeps its `obd_` name either way. GNSS speed is shown beside the decoded speed, to show their error. The ELM is the Orin's only way onto the K-line, so DTC scans go through it too; it is reached over classic Bluetooth serial (SPP, no pairing), BLE only if it proves as easy | Accepted | 2026-10-13 |