Same here. Really would like to do this in ESPHome. Skip to content. Star Code Issues Pull requests Actions Security Insights. New issue. Jump to bottom. Labels enhancement New feature or request integration: api. Milestone Top Requested. Copy link. All reactions. glmnet added the component: api label Jan 10, OttoWinter added integration: api and removed component: api labels Jul 24, nareddyt mentioned this issue Jan 25, rradar added the enhancement New feature or request label Feb 8, rradar added this to the Top Requested milestone Feb 8, This was referenced Feb 9, This was referenced Feb 15, Open a new issue please 👍 1 mschae reacted with thumbs up emoji All reactions 👍 1 reaction.

mschae mentioned this issue Mar 8, github-actions bot locked and limited conversation to collaborators Oct 23, Then in home assistant customise that sensor by applying the battery device class. It has icons relating to battery state.

There is a provision in the ESPHome documentation, that talk to the possibly of measuring VCC. Perhaps you can try the abbreviated Yaml provide in their example. Pin used needs to be A0 only. On the ESP you can even measure the voltage the chip is getting. This can be useful in situations where you want to shut down the chip if the voltage is low when using a battery. To measure the VCC voltage, set pin: to VCC and make sure nothing is connected to the A0 pin.

Ok understood. But Ok point taken. I hope this is a useful sample code for other people. Is a way arround the error message not to show up? Skärmavbild kl. Why did you choose 3. If my inkplate uses a 3.

Thanks in advance. You can probably use the thing I just specified. thank you for this! esphome , esp vcc" Any idea?

ESPHome has support for many different sensors. Each of them is a platform of the sensor domain and each sensor has several base configuration options. All sensors in ESPHome have a name and some other optional configuration options. By default, the sensor platform will chose appropriate values for all of these by default, but you can always override them if you want to.

id Optional , string : Manually specify the ID for code generation. At least one of id and name must be specified. name Optional , string : The name for the sensor. This does not actually do any maths conversion between units. Set to "" to remove the default device class of a sensor. Set to "" to remove the default state class of a sensor. icon Optional , icon : Manually set the icon to use for the sensor in the frontend. This does not impact the actual value reported to Home Assistant, it just sets the number of decimals to use when displaying it.

filters Optional : Specify filters to use for some basic transforming of values. See Sensor Filters for more information. internal Optional , boolean : Mark this component as internal. Internal components will not be exposed to the frontend like Home Assistant.

Only specifying an id without a name will implicitly set this to true. Some applications like Grafana require this when working with Home Assistant, but beware it can significantly increase the database size. Defaults to false. Requires Home Assistant Set to "" to remove the default entity category. Not providing any value means no expiry.

All other options from MQTT Component. This is for example useful if you want to apply some average over the last few values. There are a lot of filters that sensors support. You define them by adding a filters block in the sensor configuration at the same level as platform ; or inside each sensor block for platforms with multiple sensors.

First, collect a bunch of values of what the sensor shows and what the real value should be. For temperature, this can for example be achieved by using an accurate thermometer. For other sensors like power sensor this can be done by connecting a known load and then writing down the value the sensor shows. ESPHome will then fit a linear equation to the values using least squares.

So you need to supply at least two values. If more than two values are given a linear solution will be calculated and may not represent each value exactly. Calibrate your sensor values by fitting them to a polynomial functions. Additionally, you need to specify the degree of the resulting polynomial, the datapoints will then be fitted to the given degree with a least squares solver.

Required , number : Filter out specific values to be displayed. For example to filter out the value A simple moving quantile over the last few values. This can be used to filter outliers from the received sensor data. A large window size will make the filter slow to react to input changes. Defaults to 5. For example, in above configuration the quantile is calculated after every 4th received sensor value, over the last 7 received values.

With this parameter you can specify when the very first value is to be sent. quantile Optional , float : value from 0 to 1 to determine which quantile to pick. Defaults to. A simple moving median over the last few values. This number should be odd if you want an actual received value pushed out. For example, in above configuration the median is calculated after every 4th received sensor value, over the last 7 received values. A moving minimum over the last few values. For example, in above configuration the min is calculated after every 4th received sensor value, over the last 7 received values.

A moving maximum over the last few values. A simple moving average over the last few values. It can be used to have a short update interval on the sensor but only push out an average on a specific interval thus increasing resolution. For example, in above configuration the weighted average is only pushed out on every 15th received sensor value. Defaults to 1. A simple exponential moving average over the last few values. A higher value includes more details in the output while a lower value removes more noise.

Defaults to 0. Defaults to Throttle the incoming values. When this filter gets an incoming value, it checks if the last incoming value is at least specified time period old. If it is not older than the configured value, the value is not passed forward. An average over the specified time period , potentially throttling incoming values.

When this filter gets incoming values, it sums up all values and pushes out the average after the specified time period passed. There are two edge cases to consider within the specified time period :. one value received: the value is pushed out after the specified time period passed, without calculating an average. Send the value periodically with the specified time interval.

If the sensor value changes during the interval the interval will not reset. The last value of the sensor will be sent. So a value of 10s will cause the filter to output values every 10s regardless of the input values. Only send values if the last incoming value is at least specified time period old. For example if two values come in at almost the same time, this filter will only output the last value and only after the specified time period has passed without any new incoming values.

This filter stores the last value passed through this filter and only passes incoming values through if the absolute difference is greater than the configured value. For example if a value of 1. If the delta filter is configured with a value of 5, it will now not pass on an incoming value of 2. Pass forward a value with the first child filter that returns.

Above example will only pass forward values that are either at least 1s old or are if the absolute difference is at least 5. Perform a simple mathematical operation over the sensor values. The input value is x and the result of the lambda is used as the output use return. Make sure to add.

This automation will be triggered when a new value that has passed through all filters is published. In Lambdas you can get the value from the trigger with x. Configuration variables: See Automation. With this automation you can observe if a sensor value passes from outside a defined range of values to inside a range. For example you can have an automation that triggers when a humidity crosses a threshold, and then turns on a dehumidifier. This trigger will only trigger when the new value is inside the range and the previous value was outside the range.

On startup, the last state before reboot is restored and if the value crossed the boundary during the boot process, the trigger is also executed. Define the range with above and below. If only one of them is defined, the interval is half-open.

So for example above: 5 with no below would mean the range from 5 to positive infinity. See Automation. From lambdas , you can call several methods on all sensors to do some advanced stuff see the full API Reference for more info. It will then be processed by the sensor filters, and once done be published to MQTT.

state : Retrieve the current value of the sensor that has passed through all sensor filters. Is NAN if no value has gotten through all filters yet. Edit this page on GitHub. Quick search. Sensor Component ¶ ESPHome has support for many different sensors. Base Sensor Configuration ¶ All sensors in ESPHome have a name and some other optional configuration options. temperature : filters

Above example will only pass forward values that are either at least 1s old or are if the absolute difference is at least 5. Defaults to false. The example thus waits one second with the output being ON, toggles it once per second for five seconds, then toggles twice per second until OFF is received. By default, the sensor platform will chose appropriate values for all of these by default, but you can always override them if you want to. Set to "" to remove the default state class of a sensor. Similar to the switch.

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