# Display sensor data to Grove LCD RGB (I2C-1)

**URL:** <https://discourse.nodered.org/t/display-sensor-data-to-grove-lcd-rgb-i2c-1/48853>\
**Category:** General\
**Created:** [24 July 2021 16:12 UTC](https://discourse.nodered.org/t/display-sensor-data-to-grove-lcd-rgb-i2c-1/48853 "2021-07-24T16:12:13Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Terpstra](https://avatars.discourse-cdn.com/v4/letter/t/7c8e57/32.png) [@Terpstra](https://discourse.nodered.org/u/Terpstra)\
**Post date:** [24 July 2021 16:12 UTC](https://discourse.nodered.org/t/display-sensor-data-to-grove-lcd-rgb-i2c-1/48853/1 "2021-07-24T16:12:13Z")

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I am trying to get a sensor value on the "grove lcdrgb output"

GrovePi LcdRGB Output Node Sends data to GrovePi LcdRGB I2C-Device.

I have used a Inject node for text and RGB to set the color, this is working perfect

{"text":"text on the lcd","rgb":[255,0,0]}

I have Temperature data in msg. payload.temperature:number

I would like to add the value example 18 to GrovePi LcdRGB I2C-Device.

How can I get this done

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<div class="post-metadata">

**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [24 July 2021 16:43 UTC](https://discourse.nodered.org/t/display-sensor-data-to-grove-lcd-rgb-i2c-1/48853/2 "2021-07-24T16:43:23Z")

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Add a function node before the Grove node containing...

```auto
msg.payload = {
  "text": "temp=" + msg.payload.temperature + "°C",
  "rgb":[255,0,0]
}
return msg;

```

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<div class="post-metadata">

**Author:** ![Terpstra](https://avatars.discourse-cdn.com/v4/letter/t/7c8e57/32.png) [@Terpstra](https://discourse.nodered.org/u/Terpstra)\
**Post date:** [24 July 2021 17:53 UTC](https://discourse.nodered.org/t/display-sensor-data-to-grove-lcd-rgb-i2c-1/48853/3 "2021-07-24T17:53:42Z")

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Thanks Steve, its working perfect

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [7 August 2021 17:53 UTC](https://discourse.nodered.org/t/display-sensor-data-to-grove-lcd-rgb-i2c-1/48853/4 "2021-08-07T17:53:50Z")

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