# Roadmap

## Phase 1: Solid Local Cargo Controller

- Reliable relay control
- Reliable DS18B20 temps
- Reliable JBD/Xiaoxiang BMS BLE
- WPA2 AP mode
- Stable WebUI
- Stable HTTP API
- Clear status/config/control model

## Phase 2: Waveshare ESP32-S3 Dashboard

- LVGL project scaffold
- WiFi client to Cargo ESP32 AP
- Poll /status
- Display battery, relays, temps, and alarms
- Send relay commands
- Handle offline/stale/failed-command states

UI direction:

- Dark theme
- Large readable text
- Circular SOC gauge
- Card-based layout
- Smooth subtle animations
- No stock LVGL demo look

## Phase 3: Vehicle Data

- Connect Waveshare CAN to OBD-II CAN-H/CAN-L
- Keep CAN termination disabled
- Read coolant temp via PID 0105
- Read RPM via PID 010C
- Read vehicle speed via PID 010D

## Phase 4: Transmission Temperature

- Install dedicated sender
- Read through exposed ADC or ADS1115 over I2C
- Convert resistance to temp with lookup interpolation
- Add alert thresholds

## Phase 5: Future Home Server

- Cargo ESP32 outbound connection
- Remote read-only dashboard first
- Optional commands later
- HTTPS reverse proxy/PWA
- Possible MQTT/WebSocket bridge
- Optional Grafana/Home Assistant/InflDB

## Phase 6: Optional Enhancements

- microSD logging
- GPS
- OTA updates
- Dashboard alert sounds
- More vehicle PIDs
- Historical charts