run 23
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Aiden
@@ -5146,3 +5146,151 @@ Best current follow-up:
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- test exact and host-shaped handling of `07 80 7A 28 D3 5C`
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- optionally compare `E8` vs `E9` timing to see whether the differing `7A`
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payloads reflect selector choice or timing/context
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### HE13: Exact Echo Of `07 80 7A 28 D3 5C`
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Recreate the `E9` neighbor path, then immediately send the exact `7A`-family
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response back to the panel.
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```powershell
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python scripts/serial_sequence_probe.py --port COM5 --prompt --frame "00 00 A0 00 80 7A" --frame "00 00 E9 40 30 C3" --frame "07 80 7A 28 D3 5C" --frame "00 00 00 00 80 DA" --frame "00 00 00 00 80 DA" --repeat 2 --frame-interval 0.20 --read-after-frame 0.30 --read-after-group 0.8 --log captures/rcp-heartbeat-echo-exact-7a28d35c.txt
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```
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### HE14: Host-Shaped Mirror Of `07 80 7A 28 D3 5C`
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Host-shaped checksum for `00 00 7A 28 D3 ??` is `DB`.
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```powershell
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python scripts/serial_sequence_probe.py --port COM5 --prompt --frame "00 00 A0 00 80 7A" --frame "00 00 E9 40 30 C3" --frame "00 00 7A 28 D3 DB" --frame "00 00 00 00 80 DA" --frame "00 00 00 00 80 DA" --repeat 2 --frame-interval 0.20 --read-after-frame 0.30 --read-after-group 0.8 --log captures/rcp-heartbeat-echo-host-7a28d3.txt
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```
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What would count as a hit:
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- any non-heartbeat response after the exact or host-shaped `7A 28 D3` frame
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- a repeat of `07 80 7A 28 D3 5C`
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- crossover into the `E8`-style `07 80 7A 50 26 D1` or `07 80 FA 50 26 51`
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branch
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- any new stable family that suggests `E9` is a second entry point into the
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same broader selector surface
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### 2026-05-13 `E9` Mirror Result
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Captures:
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- `captures/rcp-heartbeat-echo-exact-7a28d35c.txt`
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- `captures/rcp-heartbeat-echo-host-7a28d3.txt`
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Result summary:
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- `E9` cleanly reproduced its `7A`-family response in group 1 in both tests:
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- `07 80 7A 28 D3 5C`
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- Exact echo `07 80 7A 28 D3 5C` produced only heartbeat afterwards.
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- Host-shaped mirror `00 00 7A 28 D3 DB` did not open a new stage either; it
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only drained more copies of `07 80 7A 28 D3 5C` before falling back to
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heartbeat.
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- Group 2 was heartbeat-only in both tests.
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Interpretation:
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- `E9` behaves very much like the `E8` branch structurally:
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- the host-shaped `E9` step is the active stimulus
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- the downstream `7A` response is real and reproducible
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- but directly echoing or mirroring that `7A` response does not advance the
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exchange
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- So `E8` and `E9` now look like sibling selector-style entry points into
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related but distinct `7A`-family outputs:
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- `E8` -> `07 80 7A 50 26 D1`
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- `E9` -> `07 80 7A 28 D3 5C`
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- This strengthens the idea that the `Ex` region may be selecting pages or
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classes of status rather than carrying the real session-advance command.
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Best current next move:
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- test more nearby `Ex` values to see whether this is a broader selector strip
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- or try explicit host queries for the downstream family bytes (`00 -> 7A`,
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`00 -> FA`) after `E8`/`E9` selection
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### HE15: Continue Outward In The `Ex` Neighborhood
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Push one step farther out from the now-interesting `E8` / `E9` region and see
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whether the selector-like behavior continues, shifts family again, or collapses
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back into heartbeat-only behavior.
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Checksums:
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- `00 00 E6 40 30 CC`
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- `00 00 EB 40 30 C1`
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- `00 00 EC 40 30 C6`
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#### HE15a: Host-Shaped `E6`
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```powershell
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python scripts/serial_sequence_probe.py --port COM5 --prompt --frame "00 00 A0 00 80 7A" --frame "00 00 E6 40 30 CC" --frame "00 00 00 00 80 DA" --frame "00 00 00 00 80 DA" --repeat 2 --frame-interval 0.20 --read-after-frame 0.30 --read-after-group 0.8 --log captures/rcp-heartbeat-neighbor-e6.txt
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```
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#### HE15b: Host-Shaped `EB`
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```powershell
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python scripts/serial_sequence_probe.py --port COM5 --prompt --frame "00 00 A0 00 80 7A" --frame "00 00 EB 40 30 C1" --frame "00 00 00 00 80 DA" --frame "00 00 00 00 80 DA" --repeat 2 --frame-interval 0.20 --read-after-frame 0.30 --read-after-group 0.8 --log captures/rcp-heartbeat-neighbor-eb.txt
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```
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#### HE15c: Host-Shaped `EC`
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```powershell
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python scripts/serial_sequence_probe.py --port COM5 --prompt --frame "00 00 A0 00 80 7A" --frame "00 00 EC 40 30 C6" --frame "00 00 00 00 80 DA" --frame "00 00 00 00 80 DA" --repeat 2 --frame-interval 0.20 --read-after-frame 0.30 --read-after-group 0.8 --log captures/rcp-heartbeat-neighbor-ec.txt
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```
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What would count as a hit:
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- any new non-heartbeat response after `E6`, `EB`, or `EC`
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- recurrence of the `E8`-style `07 80 7A 50 26 D1` or `E9`-style
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`07 80 7A 28 D3 5C`
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- recurrence of known heartbeat-family transients like `07 80 40 40 30 ED` or
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`07 80 C0 40 30 6D`
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- any additional family that strengthens the idea of a selector strip across
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the `Ex` region
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### 2026-05-13 Outward `Ex` Result
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Captures:
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- `captures/rcp-heartbeat-neighbor-e6.txt`
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- `captures/rcp-heartbeat-neighbor-eb.txt`
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- `captures/rcp-heartbeat-neighbor-ec.txt`
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Result summary:
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- `E6` and `EB` behaved the same way:
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- no immediate structured reply at the `Ex` step
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- the following heartbeat provoked `07 80 40 40 30 ED`
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- `EC` produced a new structured family in group 1:
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- `07 80 7B 50 26 D0`
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- As with the other recent selector tests, all interesting behavior was group 1
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only. Group 2 was heartbeat-only.
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Observed outputs:
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| Host step | Structured result |
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| --- | --- |
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| `00 00 E6 40 30 CC` | later heartbeat provoked `07 80 40 40 30 ED` |
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| `00 00 EB 40 30 C1` | later heartbeat provoked `07 80 40 40 30 ED` |
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| `00 00 EC 40 30 C6` | produced `07 80 7B 50 26 D0` |
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Interpretation:
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- The `Ex` neighborhood is continuing to look like a selector-like strip with
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mixed outcomes, not a uniform command class.
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- `E6`, `E7`, and `EB` now cluster together as values that bias into the
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`07 80 40 40 30 ED` heartbeat-family transient.
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- `E8` and `E9` open distinct `7A`-family responses:
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- `E8` -> `07 80 7A 50 26 D1`
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- `E9` -> `07 80 7A 28 D3 5C`
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- `EC` now extends that pattern one step further with a new sibling:
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- `EC` -> `07 80 7B 50 26 D0`
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- `EA` remains its own case steering toward `07 80 C0 40 30 6D`.
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Best current follow-up:
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- treat `EC` as the next strong lead and test exact/host-shaped handling of
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`07 80 7B 50 26 D0`
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- optionally try `ED` next to see whether the `7B` branch continues
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