Lovelace Mini Graph Card

A minimalistic and customizable graph card for Home Assistant Lovelace UI.

The card works with entities from within the sensor & binary_sensor domain and displays the sensors current state as well as a line graph representation of the history.

Install

HACS (recommended)

This card is available in HACS (Home Assistant Community Store). HACS is a third party community store and is not included in Home Assistant out of the box.

Manual install

1. Download and copy mini-graph-card-bundle.js from the latest release into your config/www directory.

2. Add the resource reference as decribed below.

CLI install

1. Move into your config/www directory.

2. Grab mini-graph-card-bundle.js:

$ wget https://github.com/kalkih/mini-graph-card/releases/download/v0.11.0/mini-graph-card-bundle.js

3. Add the resource reference as decribed below.

Add resource reference

If you configure Lovelace via YAML, add a reference to mini-graph-card-bundle.js inside your configuration.yaml:

resources:
  - url: /local/mini-graph-card-bundle.js?v=0.11.0
    type: module

Else, if you prefer the graphical editor, use the menu to add the resource:

1. Make sure, advanced mode is enabled in your user profile (click on your user name to get there)
2. Navigate to Configuration -> Lovelace Dashboards -> Resources Tab. Hit orange (+) icon
3. Enter URL /local/mini-graph-card-bundle.js and select type "JavaScript Module". (Use /hacsfiles/mini-graph-card/mini-graph-card-bundle.js and select "JavaScript Module" for HACS install)
4. Restart Home Assistant.

Updating

If you have a version older than v0.0.8 installed, please delete the current files and follow the installation instructions again.

1. Find your mini-graph-card-bundle.js file in config/www or wherever you ended up storing it.

2. Replace the local file with the latest one attached in the latest release.

3. Add the new version number to the end of the cards reference url in your ui-lovelace.yaml like below:

resources:
  - url: /local/mini-graph-card-bundle.js?v=0.11.0
    type: module

You may need to empty the browsers cache if you have problems loading the updated card.

Using the card

We recommend looking at the Example usage section to understand the basics to configure this card. (also) pay attention to the required options mentioned below.

Options

Card options

Name	Type	Default	Since	Description
type (required)	string		v0.0.1	custom:mini-graph-card.
entities (required)	list		v0.2.0	One or more sensor entities in a list, see entities object for additional entity options.
icon	string		v0.0.1	Set a custom icon from any of the available mdi icons.
name	string		v0.0.1	Set a custom name which is displayed beside the icon.
unit	string		v0.0.1	Set a custom unit of measurement.
tap_action	action object		v0.7.0	Action on click/tap.
group	boolean	false	v0.2.0	Disable paddings and box-shadow, useful when nesting the card.
hours_to_show	integer	24	v0.0.2	Specify how many hours of history the graph should present.
points_per_hour	number	0.5	v0.2.0	Specify amount of data points the graph should display for each hour, (basically the detail/accuracy/smoothing of the graph).
aggregate_func	string	avg	v0.8.0	Specify aggregate function used to calculate point/bar in the graph.
group_by	string	interval	v0.8.0	Specify type of grouping of data, dynamic interval, date or hour.
update_interval	number		v0.4.0	Specify a custom update interval of the history data (in seconds), instead of on every state change.
cache	boolean	true	v0.9.0	Enable/disable local caching of history data.
show	list		v0.2.0	List of UI elements to display/hide, for available items see available show options.
animate	boolean	false	v0.2.0	Add a reveal animation to the graph.
height	number	150	v0.0.1	Set a custom height of the line graph.
bar_spacing	number	4	v0.9.0	Set the spacing between bars in bar graph.
line_width	number	5	v0.0.1	Set the thickness of the line.
line_color	string/list	var(--accent-color)	v0.0.1	Set a custom color for the graph line, provide a list of colors for multiple graph entries.
color_thresholds	list		v0.2.3	Set thresholds for dynamic graph colors, see Line color object.
color_thresholds_transition	string	smooth	v0.4.3	Color threshold transition, smooth or hard.
decimals	integer		v0.0.9	Specify the exact number of decimals to show for states.
hour24	boolean	false	v0.2.1	Set to true to display times in 24-hour format.
font_size	number	100	v0.0.3	Adjust the font size of the state, as percentage of the original size.
font_size_header	number	14	v0.3.1	Adjust the font size of the header, size in pixels.
align_header	string	default	v0.2.0	Set the alignment of the header, left, right, center or default.
align_icon	string	right	v0.2.0	Set the alignment of the icon, left, right or state.
align_state	string	left	v0.2.0	Set the alignment of the current state, left, right or center.
lower_bound	number or string		v0.2.3	Set a fixed lower bound for the graph Y-axis. String value starting with ~ (e.g. ~50) specifies soft bound.
upper_bound	number or string		v0.2.3	Set a fixed upper bound for the graph Y-axis. String value starting with ~ (e.g. ~50) specifies soft bound.
min_bound_range	number		v0.x.x	Applied after everything, makes sure there's a minimum range that the Y-axis will have. Useful for not making small changes look large because of scale.
lower_bound_secondary	number or string		v0.5.0	Set a fixed lower bound for the graph secondary Y-axis. String value starting with ~ (e.g. ~50) specifies soft bound.
upper_bound_secondary	number or string		v0.5.0	Set a fixed upper bound for the graph secondary Y-axis. String value starting with ~ (e.g. ~50) specifies soft bound.
min_bound_range_secondary	number		v0.x.x	Applied after everything, makes sure there's a minimum range that the secondary Y-axis will have. Useful for not making small changes look large because of scale.
smoothing	boolean	true	v0.8.0	Whether to make graph line smooth.
state_map	state map object		v0.8.0	List of entity states to convert (order matters as position becomes a value on the graph).
value_factor	number	0	v0.9.4	Scale value by order of magnitude (e.g. convert Watts to kilo Watts), use negative value to scale down.
logarithmic	boolean	false	v0.10.0	Use a Logarithmic scale for the graph

Entities object

Entities may be listed directly (as per sensor.temperature in the example below), or defined using properties of the Entity object detailed in the following table (as per sensor.pressure in the example below).

Name	Type	Default	Description
entity (required)	string		Entity id of the sensor.
attribute	string		Retrieves an attribute instead of the state
name	string		Set a custom display name, defaults to entity's friendly_name.
color	string		Set a custom color, overrides all other color options including thresholds.
unit	string		Set a custom unit of measurement, overrides unit set in base config.
aggregate_func	string		Override for aggregate function used to calculate point on the graph, avg, median, min, max, first, last, sum.
show_state	boolean		Display the current state.
show_indicator	boolean		Display a color indicator next to the state, (only when more than two states are visible).
show_graph	boolean		Set to false to completely hide the entity in the graph.
show_line	boolean		Set to false to hide the line.
show_fill	boolean		Set to false to hide the fill.
show_points	boolean		Set to false to hide the points.
show_legend	boolean		Set to false to turn hide from the legend.
state_adaptive_color	boolean		Make the color of the state adapt to the entity color.
y_axis	string		If 'secondary', displays using the secondary y-axis on the right.
fixed_value	boolean		Set to true to graph the entity's current state as a fixed value instead of graphing its state history.
smoothing	boolean		Override for a flag indicating whether to make graph line smooth.

entities:
  - sensor.temperature
  - entity: sensor.pressure
    name: Pressure
    show_state: true
  - sensor.humidity

Available show options

All properties are optional.

Name	Default	Options	Description
name	true	true / false	Display name.
icon	true	true / false	Display icon.
state	true	true / false / last	Display current state. last will show the last graph point's value.
graph	line	line / bar / false	Display option for the graph. If set to bar a maximum of 96 bars will be displayed.
fill	true	true / false / fade	Display the line graph fill.
points	hover	true / false / hover	Display graph data points.
legend	true	true / false	Display the graph legend (only shown when graph contains multiple entities).
average	false	true / false	Display average information.
extrema	false	true / false	Display max/min information.
labels	hover	true / false / hover	Display Y-axis labels.
labels_secondary	hover	true / false / hover	Display secondary Y-axis labels.
name_adaptive_color	false	true / false	Make the name color adapt with the primary entity color.
icon_adaptive_color	false	true / false	Make the icon color adapt with the primary entity color.

Line color object

See dynamic line color for example usage.

Name	Type	Default	Description
value (required except in interpolation (see below))	number		The threshold for the color stop.
color (required)	string		Color in 6 digit hex format (e.g. #008080).

Line color interpolation of stop values

As long as the first and last threshold stops have value properties, intermediate stops can exclude value; they will be interpolated linearly. For example, given stops like:

color_thresholds:
  - value: 0
    color: "#ff0000"
  - color: "#ffff00"
  - color: "#00ff00"
  - value: 4
    color: "#0000ff"

The values will be interpolated as:

color_thresholds:
  - value: 0
    color: "#ff0000"
  - value: 1.333333
    color: "#ffff00"
  - value: 2.666667
    color: "#00ff00"
  - value: 4
    color: "#0000ff"

As a shorthand, you can just use a color string for the stops that you want interpolated:

  - value: 0
    color: "#ff0000"
  - "#ffff00"
  - "#00ff00"
  - value: 4
    color: "#0000ff"

Action object options

Name	Type	Default	Options	Description
action	string	more-info	more-info / navigate / call-service / url / none	Action to perform.
entity	string		Any entity id	Override default entity of more-info, when action is defined as more-info.
service	string		Any service	Service to call (e.g. media_player.toggle) when action is defined as call-service.
service_data	object		Any service data	Service data to include with the service call (e.g. entity_id: media_player.office).
navigation_path	string		Any path	Path to navigate to (e.g. /lovelace/0/) when action is defined as navigate.
url	string		Any URL	URL to open when action is defined as url.

State map object

Name	Type	Default	Description
value (required)	string		Value to convert.
label	string	same as value	String to show as label (if the value is not precise).

Aggregate functions

Recorded values are grouped in time buckets which are determined by group_by, points_per_hour configuration. These buckets are converted later to single point/bar on the graph. Aggregate function defines the methods of that conversion.

Name	Since	Description
avg	v0.8.0	Average
median	v0.11.0	Median
min	v0.8.0	Minimum - lowest value
max	v0.8.0	Maximum - largest value
first	v0.9.0
last	v0.9.0
sum	v0.9.2
delta	v0.9.4	Calculates difference between max and min value
diff	v0.11.0	Calculates difference between first and last value

Theme variables

The following theme variables can be set in your HA theme to customize the appearance of the card.

Name	Default	Description
mcg-title-letter-spacing		Letter spacing of the card title (name option).
mcg-title-font-weight	500	Font weight of the card title.

Example usage

Single entity card

type: custom:mini-graph-card
entities:
 - sensor.illumination

Alternative style

type: custom:mini-graph-card
entities:
 - sensor.illumination
align_icon: left
align_state: center
show:
  fill: false

Multiple entities card

type: custom:mini-graph-card
name: SERVER
icon: mdi:server
entities:
  - entity: sensor.server_total
    name: TOTAL
  - sensor.server_sent
  - sensor.server_received

Bar chart card

type: custom:mini-graph-card
entities:
  - entity: sensor.energy_consumption
name: ENERGY CONSUMPTION
show:
  graph: bar

Show data from the past week

Use the hours_to_show option to specify how many hours of history the graph should represent. Use the points_per_hour option to specify the accuracy/detail of the graph.

type: custom:mini-graph-card
entities:
  - sensor.living_room_temp
name: LIVING ROOM
hours_to_show: 168
points_per_hour: 0.25

Graph only card

Use the show option to show/hide UI elements.

type: custom:mini-graph-card
entities:
  - sensor.humidity
show:
  icon: false
  name: false
  state: false

Horizontally stacked cards

You can stack cards horizontally by using one or more horizontal-stack(s).

type: horizontal-stack
cards:
  - type: custom:mini-graph-card
    entities:
      - sensor.humidity
    line_color: blue
    line_width: 8
    font_size: 75
  - type: custom:mini-graph-card
    entities:
      - sensor.illumination
    line_color: '#e74c3c'
    line_width: 8
    font_size: 75
  - type: custom:mini-graph-card
    entities:
      - sensor.temperature
    line_color: var(--accent-color)
    line_width: 8
    font_size: 75

Dynamic line color

Have the graph change line color dynamically.

type: custom:mini-graph-card
entities:
  - sensor.sensor_temperature
show:
  labels: true
color_thresholds:
  - value: 20
    color: "#f39c12"
  - value: 21
    color: "#d35400"
  - value: 21.5
    color: "#c0392b"

Alternate y-axis

Have one or more series plot on a separate y-axis, which appears on the right side of the graph. This example also shows turning off the line, points and legend.

type: custom:mini-graph-card
entities:
  - entity: sensor.verandah
    name: Verandah
  - entity: sensor.lounge
    name: Lounge
  - entity: sensor.kitchen
    name: Kitchen
  - color: gray
    entity: input_number.nighttime
    name: Night
    show_line: false
    show_points: false
    show_legend: false
    y_axis: secondary
show:
  labels: true
  labels_secondary: true

Grouping by date

You can group values by date, this way you can visualize for example daily energy consumption.

type: custom:mini-graph-card
entities:
  - entity: sensor.energy_daily
name: Energy consumption
hours_to_show: 168
aggregate_func: max
group_by: date
show:
  graph: bar

Data aggregation functions

You can decide how values are aggregated for points on graph. Example how to display min, max, avg temperature per day from last week.

type: custom:mini-graph-card
entities:
  - entity: sensor.outside_temp
    aggregate_func: max
    name: Max
    color: #e74c3c
  - entity: sensor.outside_temp
    aggregate_func: min
    name: Min
  - entity: sensor.outside_temp
    aggregate_func: avg
    name: Avg
    color: green
name: Temp outside daily (last week)
hours_to_show: 168
group_by: date

Non-numeric sensor states

You can render non-numeric states by providing state_map config. For example this way you can show data coming from binary sensors.

type: custom:mini-graph-card
entities:
  - entity: binary_sensor.living_room_motion
    name: Living room
  - entity: binary_sensor.corridor_motion
    name: Corridor
  - entity: binary_sensor.master_bed_motion
    name: Master bed.
    color: green
  - entity: binary_sensor.bedroom_motion
    name: Bedroom
name: Motion last hour
hours_to_show: 1
points_per_hour: 60
update_interval: 30
aggregate_func: max
line_width: 2
smoothing: false
state_map:
  - value: "off"
    label: Clear
  - value: "on"
    label: Detected

Showing additional info on the card

It is possible to show a state without displaying a graph for a sensor. Imagine there are two CO-2 sensors & one humidity sensor; graphs are displayed for the CO-2 only, and the humidity is shown as a state only.

type: custom:mini-graph-card
entities:
  - entity: sensor.xiaomi_cg_1_humidity
    show_state: true
    show_graph: false
  - entity: sensor.xiaomi_cg_1_co2
    color: green
    show_state: false
    name: CO2-1
  - entity: sensor.xiaomi_cg_2_co2
    color: orange
    show_state: false
    name: CO2-2
name: Humidity
hours_to_show: 4
points_per_hour: 60
show:
  name: true
  legend: true
  icon: false
  labels: true

This method may be also used to add a calculated value with it's own aggregate_func option.

Development

1. Clone this repository into your config/www folder using git:

$ git clone https://github.com/kalkih/mini-graph-card.git

2. Add a reference to the card in your ui-lovelace.yaml:

resources:
  - url: /local/mini-graph-card/dist/mini-graph-card-bundle.js
    type: module

Instructions

Requires nodejs & npm.

1. Move into the mini-graph-card repo, checkout the dev branch & install dependencies:

$ cd mini-graph-card && git checkout dev && npm install

2. Make changes to the source code.

3. Build the source by running:

$ npm run build

4. Refresh the browser to see changes.

   Make sure cache is cleared or disabled.

5. (Optional) Watch the source and automatically rebuild on save:

$ npm run watch

The new mini-graph-card-bundle.js will be build and ready inside /dist.

If you plan to submit a PR, please base it on the dev branch.

Getting errors?

Make sure you have javascript_version: latest in your configuration.yaml under frontend:.

Make sure you have the latest versions of mini-graph-card.js & mini-graph-lib.js.

If you have issues after updating the card, try clearing your browser cache.

If you have issues displaying the card in older browsers, try changing type: module to type: js at the card reference in ui-lovelace.yaml.

License

This project is under the MIT license.