CurrentCost Custom Component for Home Assistant

Please note: Home Assistant 2021.12 or higher is required for this custom component to work

This repo is a custom component for Home Assistant

The currentcost sensor platform is using the data provided by a CurrentCost device connected to the serial port via a data cable.

The sensor returns the Total Power (usually on Appliance 0) as a state, and the temperature as an attribute. It is also possible to list additional appliances by listing the appliance number that CurrentCost devices are paired with

Confirmed working devices:

• Currentcost Envi (aka CC128)
• Currentcost EnviR

HACS Installation

The easiest way to install this custom component is via HACS

1. Follow the installation instructions to install HACS
2. Click on the HACS icon in the left side bar, click on the elipsis on the right handside and select Custom Repositories
3. enter https://github.com/lolouk44/CurrentCost_HA_CC in the URL box, select Integration as a category

Manual Installation

To install the CurrentCost custom component:

1. Create a folder called custom_components in your config folder (same folder where configuration.yaml is locate, if that folder does not already exist)
2. Create a folder called currentcost (no spaces, lowercase)
3. Copy the files inside the CurrentCost_HA_CC folder into the currentcost folder

Configuration

To setup a CurrentCost sensor to your installation:

1. Add the following code to your configuration.yaml file under the existing sensor and template headers. (do not copy/paste the sensor or template headers). If sensor or template do not already exist, add the code block including the sensor or template header.

# Example configuration.yaml entry
sensor:
  - platform: currentcost
    serial_port: /dev/serial/by-id/usb-Prolific_Technology_Inc._USB-Serial_Controller-if00-port0
    name: Current Cost
    baudrate: 57600
    devices:
      - 0
      - 2
      - 9
  # Add this sensor if you want to see data in the energy tab
  - platform: integration
    source: sensor.current_cost
    name: Total Energy
    unit_prefix: k
    round: 2

template:
  - sensor:
      - name: "CurrentCost Temperature"
        unit_of_measurement: '°C'
        state: '{{ state_attr("sensor.current_cost", "Temperature") | float -3 }}' # Manual adjustment of -3°C in case the temp sensor is high than real temperature
        device_class: temperature
        state_class: measurement # Add state_class: measurement for long term statistics are required
  - sensor:
      - name: "CurrentCost Power"
        unit_of_measurement: 'W'
        state: '{{ state_attr("sensor.current_cost", "Appliance 0") }}'
        device_class: power
        state_class: measurement
  - sensor:
      - name: "Dehumidifier Power"
        unit_of_measurement: 'W'
        state: '{{ state_attr("sensor.current_cost", "Appliance 2") }}'
        device_class: power
        state_class: measurement
  - sensor:
      - name: "Total Energy Used Last 24h" # Note: this data is published by the Current Cost device every 2h
        unit_of_measurement: 'KWh'
        state: '{{ state_attr("sensor.current_cost", "Appliance 0 Last 24h") }}'
        device_class: energy

serial_port:

description: Local serial port where the sensor is connected and access is granted.
required: true
type: string
note: when using HA in a docker environment, make sure you assign a name to the device when mounting it, e.g. --device=/dev/ttyUSB0:/dev/ttyUSB0 as opposed to just --device=/dev/ttyUSB0

name:

description: Friendly name to use for the frontend. Default to "Current Cost".
required: false
type: string

baudrate:

description: Baudrate of the serial port. 57600 is the value needed for EnviR devices.
required: false
default: 57600 Bps
type: integer

devices:

description: List of appliance numbers paired with a CurrentCost sensor
required: false
default: 0
type: integer