feat: low-pellet + temp-anomaly alerts (always on) - #18
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Adds three safety alerts, wired into the same notify()/notify_remote()
pipeline the existing probe alarms use:
- Low pellets: fires once at <=20% hopper level, re-arms after a refill
(hysteresis at 30%) so a later re-drop alerts again.
- Flame-out / pellet jam: fires if the grill has been sustained 40+
degrees below its set point for 10+ minutes during an active cook --
long enough to rule out a normal lid-open dip.
- Firmware error counters: fires on a NEW overheat/lowtemp/bad-
thermocouple event (these are cumulative lifetime counts, so only an
increase since this run's first reading is a new event).
Field names (status.pellet_level, usage.error_stats.*) were confirmed
against the real running grill's actual raw status JSON, not guessed.
Extends the CSV schema with 4 new columns. Since cook_log.csv is an
append-only file that predates this schema for existing users, added
migrate_log_schema() -- a one-time, atomic rewrite that realigns an
older file's header with the current column set, run automatically at
the start of poll.py's main(). Verified losslessly against a real copy
of the actual multi-day, 675-row cook_log.csv.
ctopherwilliams
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Summary
--watch, using the existingnotify()/notify_remote()pipeline: low pellets (hopper %, with refill re-arm), sustained grill-vs-set-point deviation (flame-out/pellet-jam signature), and firmware error-counter increments (overheat/lowtemp/bad-thermocouple).status.pellet_level,usage.error_stats.*), not guessed.migrate_log_schema()so an existing user'scook_log.csv(append-only, predates this schema) upgrades losslessly instead of misaligning.pelletCLI + YAML cook presets #14 → feat: shareable Cook Report (self-contained HTML) #15 → feat: Wrap Coach -- rule-based hold/wrap advice (--coach) #16 → docs: reposition README around the full shipped feature set #17 → this one.Test plan
cook_log.csv-- all rows preserved exactly, no data loss