Update clients, docs, and install for CarConnectivity migration

- gui_client: update _TRACE_LABELS paths to new flat snapshot structure
- README: update library name, pip command, domain list, credentials
  template, output example, and module reference
- install.sh: update credentials template and systemd service description
- client.py: update docstring
- data_model: Kelvin→Celsius conversion for battery temps (CarConnectivity
  returns Kelvin); round range_estimated_full to 1 decimal
- jay_diff: fix merge when old value is not a dict; skip empty-dict
  branches in delete

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
2026-05-27 11:43:41 +02:00
co-authored by Claude Sonnet 4.6
parent bf33737654
commit 4492692786
6 changed files with 46 additions and 42 deletions
+22 -20
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@@ -1,6 +1,6 @@
# we_monitor
Periodically polls a VW WeConnect vehicle via the `weconnect` library, stores
Periodically polls a VW vehicle via the `carconnectivity` library, stores
timestamped records as JSON, and pushes live data to connected TCP clients.
A PyQt5 GUI client visualises the data in real time.
@@ -14,7 +14,7 @@ server/
data_model.py — domain extractors, collect_snapshot()
network.py — TCP push server (accept loop + broadcast)
storage_helpers.py — load / save JSON store, midnight rotation helpers
we_connect.py — WeConnect login and vehicle selection
we_connect.py — CarConnectivity login and vehicle selection
log_config.py — logging setup
utils/
jay_diff.py — JSON diff / merge library
@@ -25,7 +25,7 @@ requirements.txt
## Requirements
```
pip install weconnect PyQt5 pyqtgraph
pip install carconnectivity carconnectivity-connector-volkswagen PyQt5 pyqtgraph
```
Or use the installer which also sets up a systemd user service:
@@ -38,7 +38,7 @@ Or use the installer which also sets up a systemd user service:
## Collector (`collect.py`)
Connects to WeConnect, polls selected domains at a configurable interval, and
Connects via CarConnectivity, polls selected domains at a configurable interval, and
appends timestamped records to a rotating JSON log. Simultaneously runs a TCP
push server so clients receive every new snapshot the moment it is collected.
@@ -68,7 +68,7 @@ All connection and collection settings live in a single JSON file:
"password": "secret"
},
"vin": "WVWZZZE1ZMP000000",
"domains": ["charging", "measurements", "readiness"],
"domains": ["charging", "electric_drive", "connectivity"],
"interval_s": 300,
"host": "0.0.0.0",
"port": 9999,
@@ -79,10 +79,10 @@ All connection and collection settings live in a single JSON file:
| Key | Default | Description |
|-----|---------|-------------|
| `credentials.username` | — | WeConnect / MyVolkswagen email |
| `credentials.password` | — | WeConnect password |
| `credentials.username` | — | MyVolkswagen email |
| `credentials.password` | — | MyVolkswagen password |
| `vin` | first vehicle | Target VIN |
| `domains` | `["charging","measurements","readiness"]` | Domains to collect (list or `"all"`) |
| `domains` | `["charging","electric_drive","connectivity"]` | Domains to collect (list or `"all"`) |
| `interval_s` | `300` | Collection interval in seconds |
| `host` | `"0.0.0.0"` | Push server bind address |
| `port` | `9999` | Push server TCP port |
@@ -104,12 +104,12 @@ CLI flags override the corresponding credentials-file value when given.
| `--log-dir DIR` | `log_dir` | Directory for rotating log files |
| `--max-records N` | — | Keep only the last N records per file (default: unlimited) |
| `--diff` | `diff` | Enable diff-mode on the push server |
| `--dry` | — | Skip WeConnect login; run push server only (useful for GUI testing) |
| `--dry` | — | Skip CarConnectivity login; run push server only (useful for GUI testing) |
| `-v` | — | Verbose / debug logging |
| `--list-domains` | — | Print available domains and exit |
**Available domains:** `charging`, `climatisation`, `measurements`,
`readiness`, `parking`, `access`
**Available domains:** `charging`, `climatisation`, `electric_drive`,
`connectivity`, `vehicle`, `position`, `doors`
### Log rotation
@@ -129,10 +129,12 @@ Log files are named `YYYY_MM_DD_HH_MM_SS_<VIN>.json` and contain:
{
"ts": "2025-05-25T10:00:00+00:00",
"charging": {
"batteryStatus": {
"currentSOC": { "value": 80, "unit": "%" },
"cruisingRangeElectric": { "value": 310, "unit": "km" }
}
"state": "readyForCharging",
"power": { "value": 11.0, "unit": "kW" }
},
"electric_drive": {
"range": { "value": 310, "unit": "km" },
"battery": { "soc": { "value": 80, "unit": "%" } }
}
}
]
@@ -259,14 +261,14 @@ pretty-printed JSON with a running record counter.
### `collect.py`
Entry point for the collector daemon. Parses CLI / credentials-file arguments,
establishes the WeConnect session, starts the push server, and runs the main
establishes the CarConnectivity session, starts the push server, and runs the main
poll loop.
### `server/data_model.py`
`collect_snapshot(vehicle, domains) → dict`
Iterates over the requested domains on a `weconnect.Vehicle` and extracts every
`Status` attribute into a flat-ish dict keyed by domain and status-object name.
Iterates over the requested domains on a CarConnectivity vehicle object and extracts
fields into a flat dict keyed by domain.
Physical values are normalised to `{"value": …, "unit": …}`. Returns a record
with a top-level `"ts"` ISO-8601 timestamp.
@@ -307,8 +309,8 @@ the last 24 hours, and returns them sorted by timestamp.
### `server/we_connect.py`
`connect(username, password) → WeConnect`
Authenticates and returns a connected `WeConnect` instance.
`connect(username, password) → CarConnectivity`
Authenticates and returns a connected `CarConnectivity` instance.
`select_vehicle(wc, vin) → (vehicle, error)`
Returns the target vehicle (first available if `vin` is empty) or an error string.
+1 -1
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@@ -1,6 +1,6 @@
#!/usr/bin/env python3
"""
WeConnect push-server test client.
CarConnectivity push-server test client.
Connects to the collect.py TCP push server and prints each incoming
snapshot to stdout as pretty-printed JSON.
+13 -14
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@@ -94,20 +94,19 @@ _SETTINGS_PATH = Path.home() / ".config" / "we_monitor" / "plot_settings.json"
# Maps full dotted trace key → short display label used in chips, legends and
# cursor readout. Falls back to the last path component for unknown keys.
_TRACE_LABELS: dict[str, str] = {
"charging.chargingStatus.chargePower": "charge power",
"charging.chargingStatus.remainingChargingTimeToComplete": "time to full",
"charging.batteryStatus.currentSOC": "SOC",
"charging.batteryStatus.cruisingRangeElectric": "range",
"charging.chargingSettings.targetSOC": "target SOC",
"climatisation.climatisationStatus.remainingClimatisationTime": "clim. time",
"climatisation.climatisationSettings.targetTemperature": "target temp",
"measurements.odometerStatus.odometer": "odometer",
"measurements.rangeStatus.electricRange": "elec. range",
"measurements.rangeStatus.totalRange": "total range",
"measurements.temperatureBatteryStatus.temperatureHvBatteryMax": "batt. temp max",
"measurements.temperatureBatteryStatus.temperatureHvBatteryMin": "batt. temp min",
"measurements.temperatureOutsideStatus.temperatureOutside": "outside temp",
"procedural.range_at_100": "range 100%"
"charging.power": "charge power",
"charging.remain": "time to full",
"charging.settings.target_level": "target SOC",
"climatisation.remain": "clim. time",
"climatisation.settings.target_temperature": "target temp",
"climatisation.environment.temperature_outside": "outside temp",
"electric_drive.battery.soc": "SOC",
"electric_drive.range": "range",
"electric_drive.range_full": "range (full)",
"electric_drive.battery.temperature_max": "batt. temp max",
"electric_drive.battery.temperature_min": "batt. temp min",
"electric_drive.odometer.odometer": "odometer",
"procedural.range_at_100": "range 100%",
}
+2 -2
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@@ -69,7 +69,7 @@ if [[ ! -f "$CREDS_FILE" ]]; then
"password": "secret"
},
"vin": "",
"domains": ["charging", "measurements", "readiness"],
"domains": ["charging", "electric_drive", "connectivity"],
"interval_s": 300,
"host": "0.0.0.0",
"port": 9999,
@@ -93,7 +93,7 @@ mkdir -p "$SYSTEMD_DIR"
cat > "$SERVICE_FILE" <<EOF
[Unit]
Description=WeConnect vehicle data collector
Description=CarConnectivity vehicle data collector
After=network-online.target
Wants=network-online.target
+3 -3
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@@ -118,13 +118,13 @@ def extract_electric_drive(vehicle) -> dict | None:
try:
ed = vehicle.get_electric_drive()
result["range"] = _phys(ed.range.value, "km")
result["range_full"] = _phys(ed.range_estimated_full.value, "km")
result["range_full"] = _phys(round(float(ed.range_estimated_full.value), 1), "km")
try:
bat = ed.battery
result["battery"] = {
"soc": _phys(ed.level.value, "%"),
"temperature_max": _phys(bat.temperature_max.value, "degC"),
"temperature_min": _phys(bat.temperature_min.value, "degC"),
"temperature_max": _phys(round(float(bat.temperature_max.value) - 273.15, 1), "degC"),
"temperature_min": _phys(round(float(bat.temperature_min.value) - 273.15, 1), "degC"),
}
except Exception:
log.debug("electric_drive/battery unavailable", exc_info=True)
+4 -1
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@@ -77,7 +77,10 @@ def jay_merge_update(_old, _new):
r = jay_merge_update(_old.get(k, {}), v)
_old[k] = r
else:
if isinstance(_old, dict):
_old[k] = _new[k]
else:
_old = _new
return _old
@@ -96,7 +99,7 @@ def jay_merge_add(_old, _new):
def jay_merge_delete(_old, _new):
for k, v in _new.items():
if isinstance(v, dict):
if isinstance(v, dict) and v:
jay_merge_delete(_old[k], _new[k])
if len(_old[k].keys()) == 0:
del _old[k]