docs(co2): ajouter ISO_17 (CO2, ppm) au protocole NebuleAir Pro 4G

- iso-pollutant-codes.md: code ISO_17 = CO2 (ppm), sentinelle 0xFFFF
- udp-miotiq.md: ISO_17 consomme les 2 octets reserved (offset 81),
  trame inchangee a 83 octets, retrocompat (0 = anciens fw)
- json-payload.md: tableau polluants, note sentinelle, exemple

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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2026-06-01 17:44:25 +02:00
parent a27af69f27
commit ace447c933
3 changed files with 12 additions and 3 deletions

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@@ -12,6 +12,7 @@ Les codes vont théoriquement de `ISO_01` à `ISO_99`. Seuls ceux effectivement
| `ISO_04` | CO — monoxyde de carbone | ppb | | |
| `ISO_05` | H₂S — sulfure d'hydrogène | ppb | | |
| `ISO_08` | O₃ — ozone | ppb | | |
| `ISO_17` | CO₂ — dioxyde de carbone | ppm | | En **ppm** (et non ppb comme les gaz traces). `uint16`, sentinelle `0xFFFF` = non équipé. |
| `ISO_21` | NH₃ — ammoniac | ppb | | |
| `ISO_24` | PM10 | µg/m³ | `x/10` | Particules ≤ 10 µm |
| `ISO_39` | PM2.5 | µg/m³ | `x/10` | Particules fines ≤ 2.5 µm |