Graph more wavy than it should be

[Quixus]

I created the following graph

type: custom:mini-graph-card
entities:
  - entity: climate.thermostat_arbeitszimmer
    attribute: current_temperature
    unit: °C
  - entity: climate.thermostat_arbeitszimmer
    attribute: temperature
    unit: °C
    color: red
color_thresholds:
  - value: 0
    color: "#0000ff"
  - value: 20
    color: "#00ff00"
  - value: 24
    color: "#ffff00"
  - value: 26
    color: "#ff0000"
hours_to_show: 48
show:
  legend: false
line_width: 2

In the beginning the temperature attribute was 4. at some point I set it to 20 and later back to 4, but instead of jumping up to 20, I have several data points if I hover over the graph:
21 Thu, 4:13 PM - 21 Thu, 6:13 PM value 4
21 Thu, 6:13 PM - 21 Thu, 8:13 PM value 12
21 Thu, 8:13 PM - 21 Thu, 10:13 PM value 14,67

What I actually did was, I set the temperature to 20 at 6:46 and back to 4 at 9:56.

Another issue is that minigraph uses a 12h clock and the rest of homeassistant a 24h one.

Can get a more accurate representation of the target temperature? using update_interval: 10 did nothing.

[ildar170975]

Set a bigger points_per_hour and smoothing=false. You should have compared 2 screenshots (and also post them here) - for your card (shows 6 points per hour by default connected with smooth curves) and stock history-graph (shows stepline for each reading).

[ildar170975]

Another issue is that minigraph uses a 12h clock and the rest of homeassistant a 24h one.

This is a known feature; there is an option “hour24” for this; and there is a pending PR to improve this behavior. And please do not mix several questions in one thread.

[Quixus]

Thanks that worked.