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Context: the project archive (KXKM_Batterie_Parallelator-main) had no git history locally; a fresh repository is needed to host it on git.saillant.cc (electron/KXKM_Batterie_Parallelator). Approach: initialize a new repo on branch main, stage the archive content, and harden .gitignore before the first commit. Changes: - Import the full project tree: firmware/, firmware-idf/, firmware-rs/, iosApp/, kxkm-bmu-app/, kxkm-api/, hardware/, docs/, specs/, scripts/, models/, tests/ - Keep project dotfiles tracked despite the trailing '.*' ignore rule: .github/, .claude/, .superpowers/, .gitattributes, .markdownlint.json - Extend .gitignore: firmware/src/credentials.h (local secrets, template kept), kxkm-bmu-app/**/build/ (66 MB compiled iOS framework), .remember/ (session data) Impact: the project can now be maintained on the self-hosted Gitea forge with a clean, secret-free initial history.
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Spec — KXKM Batterie Parallelator
Kill_LIFE gate: S0 → S1 Version: 1.0 (2026-03-25)
Fonctions requises
| ID | Fonction | Priorité |
|---|---|---|
| F01 | Mesure tension chaque batterie via INA237 (I²C) | MUST |
| F02 | Mesure courant chaque batterie via INA237 (I²C) | MUST |
| F03 | Coupure relais via TCA9535 sur sur-tension (>30 V) | MUST |
| F04 | Coupure relais sur sous-tension (<24 V) | MUST |
| F05 | Coupure relais sur sur-courant (>1 A abs) | MUST |
| F06 | Coupure relais sur déséquilibre tension (>1 V vs max) | MUST |
| F07 | Reconnexion automatique après N coupures (délai 10 s) | MUST |
| F08 | Coupure permanente après dépassement Nb_switch_max (5) | MUST |
| F09 | Log série 115200 baud — état de chaque batterie | SHOULD |
| F10 | Interface web embarquée (AsyncWebServer) — supervision | COULD |
| F11 | Support jusqu'à 16 packs batterie | MUST |
Paramètres configurables
#define alert_bat_min_voltage 24000 // mV
#define alert_bat_max_voltage 30000 // mV
#define alert_bat_max_current 1 // A
#define voltage_diff 1 // V — seuil déséquilibre
#define Nb_switch_max 5 // coupures max avant verrouillage
#define reconnect_delay 10000 // ms
Interfaces matérielles
| Interface | Composant | Rôle |
|---|---|---|
| I²C SDA/SCL (GPIO 32/33) | INA237 ×N | Mesure V/I/P |
| I²C | TCA9535PWR ×N | Pilotage relais MOSFET |
| UART0 115200 | — | Debug / log |
| WiFi | — | Accès interface web |
Non-objectifs
- BMS chimique (gestion SOC, SOH, thermique) : hors périmètre
- Équilibrage actif des cellules : hors périmètre
- Connexion ArtNet / OSC (présent dans K32-lib mais non utilisé ici)