# Gauge - simple data display

**URL:** <https://discourse.nodered.org/t/gauge-simple-data-display/99047>\
**Category:** Dashboard\
**Tags:** dashboard-2\
**Created:** [15 September 2025 08:39 UTC](https://discourse.nodered.org/t/gauge-simple-data-display/99047 "2025-09-15T08:39:18Z")\
**Posts on this page:** 10\
**Page:** 1

<div class="post-metadata">

**Author:** ![mbb](https://avatars.discourse-cdn.com/v4/letter/m/eb9ed0/32.png) [@mbb](https://discourse.nodered.org/u/mbb)\
**Post date:** [15 September 2025 08:39 UTC](https://discourse.nodered.org/t/gauge-simple-data-display/99047/1 "2025-09-15T08:39:18Z")

</div>

Hello,

I’m facing a newbie issue with gauge.

For some strange reason, i cannot activate display of data in it.

I’m receiving Uint16 data from OPC\_UA and i’m able to display in it the Text box of Dashboard2.

But the gauge is always empty, i was trying different settings also with some basic json expresions, etc. But not success.At the moment the value is simpyl msg.payload.

On the other hand, on different flow im using simple gauge of boolean and it works.

It looks like the problem is in the data format or something, but im stuck already with it for long time.

thank you for any hints

best regards

---

<div class="post-metadata">

**Author:** ![joepavitt](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/joepavitt/32/59722_2.png) [@joepavitt](https://discourse.nodered.org/u/joepavitt)\
**Post date:** [15 September 2025 08:51 UTC](https://discourse.nodered.org/t/gauge-simple-data-display/99047/2 "2025-09-15T08:51:22Z")

</div>

Hi @mbb welcome to the forum! Are you able to share a piece of data as a sample of what you’re sending please?

---

<div class="post-metadata">

**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [15 September 2025 08:59 UTC](https://discourse.nodered.org/t/gauge-simple-data-display/99047/3 "2025-09-15T08:59:53Z")

</div>

> [@mbb](#):
>
> I’m facing a newbie issue

Also I recommend watching this playlist: [Node-RED Essentials](https://www.youtube.com/playlist?list=PLyNBB9VCLmo1hyO-4fIZ08gqFcXBkHy-6). The videos are done by the developers of node-red. They're nice & short and to the point. You will understand a whole lot in about 1 hour. A small investment for a lot of gain.

---

<div class="post-metadata">

**Author:** ![mbb](https://avatars.discourse-cdn.com/v4/letter/m/eb9ed0/32.png) [@mbb](https://discourse.nodered.org/u/mbb)\
**Post date:** [15 September 2025 09:14 UTC](https://discourse.nodered.org/t/gauge-simple-data-display/99047/4 "2025-09-15T09:14:12Z")

</div>

thank you,

here are the screenshots - as you can see im receiving the P value to text box, but to gauge not.

I will have a look on the videos in the meantime, thank you

 ![Zrzut ekranu 2025-09-15 111002](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/0/d/0dc1dd78d1beb336851bda8c252e1331b703c737.png)

 ![Zrzut ekranu 2025-09-15 110814](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/0/a/0ab27f556f9f30002e8e07b2dd6078075641ad93.png)

```flows
[]

```

---

<div class="post-metadata">

**Author:** ![mbb](https://avatars.discourse-cdn.com/v4/letter/m/eb9ed0/32.png) [@mbb](https://discourse.nodered.org/u/mbb)\
**Post date:** [15 September 2025 09:14 UTC](https://discourse.nodered.org/t/gauge-simple-data-display/99047/5 "2025-09-15T09:14:52Z")

</div>

![Zrzut ekranu 2025-09-15 110950](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/b/f/bf2b0a7d5d2e3a96cbe519cbfe9375fae6550b7b.png)

 ![Zrzut ekranu 2025-09-15 110928](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/6/3/63edc45eb8f913845b81adc0ab48bc8d7e90fd1e.png)

---

<div class="post-metadata">

**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [15 September 2025 09:48 UTC](https://discourse.nodered.org/t/gauge-simple-data-display/99047/6 "2025-09-15T09:48:46Z")

</div>

Add a debug node showing what is going into the gauge please and show us what it says. That will tell you what you are sending to the gauge.

---

<div class="post-metadata">

**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [15 September 2025 10:12 UTC](https://discourse.nodered.org/t/gauge-simple-data-display/99047/7 "2025-09-15T10:12:44Z")

</div>

I don't know about the OPC node, but if your `P` node is showing the value that you also want to see in the gauge then I would have expected that output 1 of the OPC node would be connected to both the text node and the gauge.

---

<div class="post-metadata">

**Author:** ![mbb](https://avatars.discourse-cdn.com/v4/letter/m/eb9ed0/32.png) [@mbb](https://discourse.nodered.org/u/mbb)\
**Post date:** [15 September 2025 10:37 UTC](https://discourse.nodered.org/t/gauge-simple-data-display/99047/8 "2025-09-15T10:37:09Z")

</div>

Sorry, im completly new. i tought the 3 outputs of the OPC are parallel ( the same), you are right those are different outputs. And now if i connect to the first, gauge works.

thank you for your help !

that’s from OPC\_client I tab

> The second Output is for status monitoring purposes: allowing management of endpoints, their errors and statuses
> 
> Second Output shall look like this: '{error: {error} , endpoint: {opcuaEndpoint}, status: {currentStatus} }'
> 
> The third Output is for raw values returned from the OPC UA response

---

<div class="post-metadata">

**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [15 September 2025 12:10 UTC](https://discourse.nodered.org/t/gauge-simple-data-display/99047/9 "2025-09-15T12:10:55Z")

</div>

Glad you got it sorted. If you click the checkbox at the bottom of my post it will mark it as the solution so others know that the problem is solved.

---

<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:** [29 September 2025 12:11 UTC](https://discourse.nodered.org/t/gauge-simple-data-display/99047/10 "2025-09-29T12:11:33Z")

</div>

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.