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I just got an Airthings Radon monitor, and the integration with HA went smoothly. As a starting dashboard I have a simple card displaying sensor values.
But I let myself get carried away and got the one with the most sensors. So expected to see history graphs so I can look at trends or events, but it never occurred to me they were all different units and scales. HA wants to create many charts, which is less easy to read.
Does anyone have dashboard ideas on how to display these?
Do you find it to be reliable/accurate? I was going to order one of these until I read some reviews.
Temperature and humidity is all I have other data sources to verify and even then it’s only temperature
I only have an hour of data so far
Edit: after a day’s data, now’s the hard part: deciding what to do about it and how much to trust the accuracy. I have not put the detector in the basement yet(primary goal is monitoring radon), but it’s in a family room addition on a slab, with old direct vented gas heaters (actually those are off right now, so it’s not ytesting those)
Clearly I also need a chart that can display a limit, or two. For example, who recommends a limit of 100 for radon and epa recommends a limit of 148, so I’d like to see them both on the radon graph, and maybe a color change or something if a point in time exceeds them
I'm not sure if they're accurate (never got mine third party tested) but they're consistent. Stick two next to each other and get the same results.
I've found apexcharts-card to be fairly configurable and good looking. I've put 2 different data types on the one graph and used two axes (price left, % right). Sometimes the values get "stuck", but a refresh fixes it.
YAML code for my chart
type: custom:apexcharts-card
apex_config:
legend:
show: false
graph_span: 12h
span:
start: minute
yaxis:
- id: price
min: ~-10
max: ~40
decimals: 0
- id: renewables
opposite: true
min: 0
max: ~100
decimals: 0
header:
show: true
title: Amber Prices
show_states: true
colorize_states: true
series:
- entity: sensor.amber_general_forecast
name: General Forecast
unit: c/kWh
color: "#3498DB"
yaxis_id: price
data_generator: >
const data = [];
data.push([hass.states['sensor.amber_general_price'].attributes.nem_date.replace(/0{2}$/,
"30"), hass.states['sensor.amber_general_price'].attributes.per_kwh*100]);
for(let i = 0; i <= 24; i++) {
data.push([entity.attributes.forecasts[i].nem_date.replace(/0{2}$/, "30"), entity.attributes.forecasts[i].per_kwh*100])
}
return data.reverse();
- entity: sensor.amber_feed_in_forecast
name: Feed In Forecast
unit: c/kWh
color: "#ff9800"
yaxis_id: price
data_generator: >
const data = [];
data.push([hass.states['sensor.amber_feed_in_price'].attributes.nem_date.replace(/0{2}$/,
"30"), hass.states['sensor.amber_feed_in_price'].attributes.per_kwh*100]);
for(let i = 0; i <= 24; i++) {
data.push([entity.attributes.forecasts[i].nem_date.replace(/0{2}$/, "30"), entity.attributes.forecasts[i].per_kwh*100])
}
return data.reverse();
- entity: sensor.amber_feed_in_forecast
name: Renewables
yaxis_id: renewables
unit: "%"
color: "#2ECC71"
data_generator: >
const data = [];
I don’t even have the right terminology so google and ChatGPT were not helpful ….. does ha have some sort of trend graph that is a combination of different sets of values, over the same time axis?
A goal might be to identify events and their effects. For example perhaps turning on the dryer raises particulates and CO2: I know when I turn on the dryer raises so want to look at the graph for any matching changes.
(Or maybe I’m fooling myself: I have no idea what the sampling frequency is yet)