Monitor Sensor Data from Ohme Smart EV Charger

S.C.O.R.E. → Convenience → Device Control

Overview

The Ohme smart EV charger allows homeowners to access real-time sensor data from their electric vehicle charging process. By integrating this data into their home capability system, users can optimize energy consumption and reduce costs associated with charging their electric vehicles.

Benefits

• Gain insights into charging patterns and energy usage.
• Optimize charging times to take advantage of off-peak electricity rates.
• Receive notifications for charging status and completion.

Intent

This capability enables users to retrieve and monitor sensor information from their Ohme EV charger. The outcome is improved energy management and better overall control of electric vehicle charging.

Preconditions

• Ohme smart EV charger must be installed and connected.
• Home Assistant must be configured to interact with the Ohme charger.
• User must have access to Home Assistant interface.
• Home Assistant installed and configured.
• Integration available and authenticated: Zigbee2MQTT.
• Device installed and reachable: Energy Monitoring.

Actors

• Homeowner monitoring energy usage
• Family member checking charging status
• Guest interested in EV charging

Trigger

The capability is triggered by a change in the charging status or a scheduled query to the Ohme charger.

Workflow Diagram

flowchart TD
    A[Charging Status Change] -->|check| B{Is Charger Active?}
    B -->|Yes| C[Retrieve Sensor Data]
    C --> D[Display Data to User]
    B -->|No| E[Exit]

Workflow Description

1. Check Charging Status

The system monitors the charging status of the Ohme EV charger to determine if it is currently active.

2. Retrieve Sensor Data

If the charger is active, the system requests the latest sensor data from the Ohme charger.

3. Process Data

The retrieved data is processed to extract relevant information such as energy consumption and charging speed.

4. Notify User

The system sends a notification or updates the Home Assistant dashboard with the latest charging information.

5. Log Data

Sensor data is logged for historical tracking and analysis to help optimize future charging sessions.

Postconditions

After the capability completes, the homeowner has updated information about their EV charging status, which they can use to optimize their energy usage.

Optional Enhancements

• Integrate with energy pricing API for dynamic charging schedules.
• Set up capability to start/stop charging based on energy prices.
• Create visual reports of charging history and energy usage.

Recommended Components

Source Examples

• 2026.1: Home is where the dashboard is ?? – Home Assistant (homeassistant)