TEL-04
4
Commits
| Author | SHA1 | Message | Date | |
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 glenn schrooyenandClaude Opus 5
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e663e10245 |
TEL-04 review: unshadow the helper, validate config at startup, and record
what the rig proved about the age sensor
Review findings 1, 3, 5 and 6. Finding 2 is deliberately untouched - it is
its own ticket.
3. `built` was rebound at test_p1.py:816 by `built = build_source(...)`,
silently disarming the build() wrapper for anything appended below it.
Renamed to `sel`. Reproduced the reviewer's failure before fixing:
appending a check that calls built() after that line gives
`TypeError: 'HaSignedSource' object is not callable` and aborts at 163 of
180; with the rename the same probe reaches 180 and passes.
5. DOCS.md now states the "length must equal meter_phases" constraint that
config.yaml already carried, plus what leaving the list empty actually
costs: on the surveyed reading the phases carry 2769 W of import while the
connection nets 187 W, so the tariff quantity is understated ~15x.
6. build_source now checks the ha_signed wiring once at startup instead of
once per telegram: a blank p1_net_entity, or a phase list whose length
disagrees with meter_phases, logs an error and disables ingestion. Both
otherwise fail in the single way indistinguishable from a healthy source
nobody has fed yet - no samples, a climbing age, the watchdog holding the
battery at 0 W, and nothing in the log.
1. THE AGE SENSOR. Measured on the ENV-01 rig against the real HomeWizard
integration, meter frozen via hwsim's `?fault=freeze` seam (cleared in a
finally:, rig verified restored):
- websocket state_changed for the meter over 70 s : 0
- last_reported advanced (REST serialiser) : no
- last_reported advanced (websocket serialiser) : no
- subscribe_events(state_reported) : rejected,
"Event filter is required for event state_reported"
So Home Assistant exposes NO arrival signal for a repeated reading, and
the proposed fix - stamp from last_reported via subscribe_entities - is
not available. subscribe_entities listens only to EVENT_STATE_CHANGED, and
as_compressed_state carries no last_reported at all.
The age is therefore "time since the value changed", which on ha_dsmr is
mostly harmless (a telegram moves several entities) and on ha_signed is
not: one entity means a healthy meter under a flat load is
indistinguishable from a dead one. Recorded loudly in DOCS.md, in the
HaSignedSource docstring and in the CHANGELOG, with the measured 42.2 s
and 97.0 s gaps from our own capture.
meter_max_age_s is deliberately NOT widened. The two conditions produce an
identical signal, so a larger number does not separate them - it only
chooses which of the two errors you get, and it would disarm the watchdog
for a genuinely dead meter as well. The honest fix is an arrival stamp the
meter itself provides.
test_p1.py: 174 -> 179 checks, all green. Other three suites unchanged.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Du77usMj8XNKNFZGmUiWDa
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glenn schrooyenandClaude Opus 5
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8b51a51e20 |
TEL-04: a third meter_source for a single signed entity
TEL-01 shipped ha_dsmr and mqtt_p1, and neither can read the meter that is
actually fitted here. The house has a HomeWizard P1 exposing ONE signed
entity, sensor.p1_meter_active_power (+ import, - export); ha_dsmr wants two
unsigned registers and refuses a negative one outright, which is every
exporting telegram. So sensor.p1_sample_age_s could not be produced at this
site, and FW-01's watchdog needs it - measured, not theoretical: the house P1
went 51.1 s and 36.2 s without a state change overnight, both past
meter_max_age_s 30, so without the age sensor the watchdog would false-trip
the battery to 0 W.
Adds meter_source: ha_signed, reading p1_net_entity (and optionally
p1_phase_net_entities in L1..L3 order for the capacity-tariff peak). The
derivation is split_signed(), sitting next to make_sample's subtraction for
the same reason it does - the moment a user is asked to write two template
sensors that split a signed value, the sign convention is back in unreviewed
YAML underneath a safety input, which is exactly what TEL-01 removed.
The transport is a subclass of HaDsmrSource overriding only _wanted() and
build(), so every rule TEL-01 established is inherited rather than
re-implemented: ingest timestamping, meter_max_age_s, the clock-recomputed
sensor.p1_sample_age_s republished ~1 Hz, the plausibility ceiling, the
"prime the cache from get_states but never build a sample out of it" rule,
"a reconnect emits nothing", and unavailable/unknown treated as a MISSING
reading and never as 0 W.
Defaults to off. An existing install is unaffected until it opts in.
test_p1.py: 122 -> 174 checks. Includes an end-to-end run of the new
transport against a fake Home Assistant websocket, and the sign convention
asserted against real captured readings from
sim/scenarios/ha-p1_meter_active_power-2026-08-{20,23}.json (-5710 W at
13:46 local under full sun is export; +775 W at midnight is import).
Non-vacuity: ten mutations of the new rules, each applied alone and reverted
byte-identical. Nine turn the suite red. The tenth - splitting the per-phase
signed values rather than passing them through - is an equivalent mutant,
because make_sample subtracts the two lists again and does not sign-check
per-phase figures. That is recorded in a ponytail: comment at the site rather
than left for the next reviewer to rediscover.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Du77usMj8XNKNFZGmUiWDa
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glenn schrooyenandClaude Opus 5
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4bd659c499 |
TEL-01 review fixes: stop the age sensor tripping installs that have no meter
T-1, and it was a fleet-wide trip to zero. publish() emitted p1_age unconditionally, and published_age_s counts from P1Ingest.__init__ when no sample has ever arrived. With meter_source defaulting to off, every existing install would have published sensor.p1_sample_age_s climbing without bound; the ESP32 does `has_state() && state >= max_age_s` and forces the layer-1 failsafe, so each of them would have pinned its inverter at 0 W within 30 s. Exactly the opposite of the zero-regression the off default was for. The key is now omitted from the payload AND from MQTT discovery when P1 is off, so the entity does not exist at all - which is the status quo, and what has_state() is testing for. The predicate is one function, is_enabled(), because the grid reading, the task start and the discovery announcement have to agree or this comes back. T-2, connect no longer manufactures a sample. get_states returns whatever HA currently holds, which after a Core restart is a RestoreEntity value of unknown age; stamping it with ingest_ts=now reset the age and reported a fresh meter that could have been dead for an hour. run()'s own docstring already said a reconnect must emit nothing - the code disagreed with it, and a test asserted the violation. The cache is still primed, so the first real state_changed builds a complete sample; the age just stays honest until one arrives. T-3, gaps are no longer filled with the last held value. The averager held a sample forward across any interval, so a meter dying at 5 kW and returning ten minutes later credited 5 kW x 600 s to the capacity-tariff accumulator - a fabricated peak on a permanent record. The hold is capped at max_age_s: past that the stretch is walked so block boundaries still land correctly, but nothing accumulates and elapsed does not grow, which is what finally makes the comment about a gap dragging the billed average down true. Same threshold for control and billing: a reading too old to steer by is too old to bill by. T-4, the out-of-order/duplicate guard is covered. It was untested, and the reason is worth recording: the obvious assertion passes without the guard, because the negative interval is separately refused by the covered > 0 test. What the guard prevents is the timestamp REWIND, which only shows up one sample later as a re-integrated window. The test now goes one sample later. T-6, DOCS was wrong about latency. meter_max_age_s and stale_input_s stack, so meter death to 0 W is 45 s and not 30. Documented as a table with both clocks. Also documented the T-5 asymmetry rather than papering over it: the age measures arrival, not change, so a stuck MQTT bridge republishing its last telegram still looks fresh. Correct on ha_dsmr, not detectable on mqtt_p1 without a change-detector. Written up as a known limit. Writing the T-1 test caught a second defect in the test itself: it recorded only MQTT topics, and object_id lives in the payload, so "the age sensor is not announced" had been passing for the wrong reason. test_p1.py: 99 -> 122 checks. 14 mutations run, all 14 red, files restored byte-identical - including one per fix above. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Du77usMj8XNKNFZGmUiWDa |
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glenn schrooyenandClaude Opus 5
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f47f1f0129 |
TEL-01: P1 ingestion, with the derivation and the age the EMS owns
A Belgian P1 meter publishes two UNSIGNED registers, not one signed figure. Until now the add-on asked the installer to bridge that gap with a template sensor, which put the sign convention of the whole control loop in a text box. This moves it into the EMS: net = import - export, derived once, in one place, with a test that fails if anyone inverts it. Two transports behind one contract, chosen by `meter_source`: the HA WebSocket subscribing to the DSMR integration's entities, and MQTT on a configurable topic. Everything downstream reads P1Ingest, so switching is a config edit. `meter_source: off` is the default and keeps the existing meter_entity path, so no installed system changes until it opts in. The other half is the timestamp. Every accepted sample is stamped at ingest with a monotonic clock, `meter_max_age_s` is applied to it, and the age is published as sensor.p1_sample_age_s for the ESP32's stale-input watchdog. That entity is recomputed against the clock every second rather than only when a telegram lands, because HA pushes state only on change: a meter frozen at a constant reading emits nothing and looks, to anything watching the value, exactly like a meter that has died. The age tells them apart. Deliberately absent: any fallback to an inverter-side power figure. The inverter's own AC power correlates 0.998 with battery power and 0.09 with the real meter, so failing over to it means regulating against your own output. A gap stays a gap - a reconnect emits no synthetic sample, and a rejected telegram never resolves to 0 W or refreshes the timestamp. Quarter-hour averages are time-weighted over clock-aligned blocks rather than a mean of samples, so a cadence change cannot bias the capacity-tariff figure, and only offtake is accumulated so a quarter of pure export averages to 0 kW. Per-phase import is kept separately: on an unbalanced three-phase load the phase sum and the connection net are different numbers, and only one of them is billed. test_p1.py: 99 checks, runnable with a bare interpreter and no meter. Includes an end-to-end run of the HA transport against a fake Home Assistant websocket. Stacked on SAFETY-04; nothing here touches control.py. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Du77usMj8XNKNFZGmUiWDa |