# Min and max propriety of charts

**URL:** <https://discourse.nodered.org/t/min-and-max-propriety-of-charts/57060>\
**Category:** Dashboard\
**Created:** [22 January 2022 18:08 UTC](https://discourse.nodered.org/t/min-and-max-propriety-of-charts/57060 "2022-01-22T18:08:08Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![alanmasu](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/alanmasu/32/32206_2.png) [@alanmasu](https://discourse.nodered.org/u/alanmasu)\
**Post date:** [22 January 2022 18:08 UTC](https://discourse.nodered.org/t/min-and-max-propriety-of-charts/57060/1 "2022-01-22T18:08:08Z")

</div>

Hi,  
I've done a simple thermometer with a DHT21, ESP32 ans I would like to show the readings in a line chart. I've used the MQTT node to recive dates and a chart to show them.  
My problem is to set the min propriety of the chart, because, if I set it to 0 and the temp drops below 0, the measure will not displayed, if I'll leave the propriety blank and measure are positive the 0 value is not displayed anyway...

There is a solution for this problem?

---

<div class="post-metadata">

**Author:** ![E1cid](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/e1cid/32/77971_2.png) [@E1cid](https://discourse.nodered.org/u/E1cid)\
**Post date:** [22 January 2022 18:15 UTC](https://discourse.nodered.org/t/min-and-max-propriety-of-charts/57060/2 "2022-01-22T18:15:02Z")

</div>

> [@alanmasu](#):
>
> There is a solution for this problem?

yes here [node-red-dashboard/config-fields.md at master · node-red/node-red-dashboard · GitHub](https://github.com/node-red/node-red-dashboard/blob/master/config-fields.md)

and if you leave the min max blank the chart should auto fit.

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [21 February 2022 18:15 UTC](https://discourse.nodered.org/t/min-and-max-propriety-of-charts/57060/3 "2022-02-21T18:15:21Z")

</div>

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.