# Node-red, raspberry pi and arduino communication issues

**URL:** https://discourse.nodered.org/t/node-red-raspberry-pi-and-arduino-communication-issues/58115
**Category:** General
**Tags:** node-red-dashboard
**Created:** [10 February 2022 22:01 UTC](https://discourse.nodered.org/t/node-red-raspberry-pi-and-arduino-communication-issues/58115 "2022-02-10T22:01:59Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![zenofmud](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/zenofmud/32/316_2.png) [@zenofmud](https://discourse.nodered.org/u/zenofmud)
#### Post date: [11 February 2022 09:31 UTC](https://discourse.nodered.org/t/node-red-raspberry-pi-and-arduino-communication-issues/58115/2 "2022-02-11T09:31:43Z")

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1. What version of Node-RED and Node.js are you using? (look at the NR startup log for this info)
2. Whch arduino are you using and does it support WiFi?
3. what sensor are you using on the arduino to read the temperatures?
4. have you coded the code on the arduino yourself or are you using a package like ESPEasy or Tasmoda? If using a package, which one?
5. attach a `debug` node (set to display the complete msg object) to the output of `serial-in` node. See below for how to do this
6. export your flow and attach it to a reply. See below for how to do this

**How to get data from messages**

There’s a great page in the docs that will explain how to use the debug panel to find the right path to any data item.

Pay particular attention to the part about the buttons that appear under your mouse pointer when you over hover a debug message property in the sidebar.

![BX00Cy7yHi](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/b/d/bd1f333a9e043b061b39917c328b0094d3e52d30.gif)

[https://nodered.org/docs/user-guide/messages](https://nodered.org/docs/user-guide/messages)

**How to post code or flows**

In order to make code readable and usable it is necessary to surround your code with three backticks (also known as a left quote or backquote `````)

````auto
``` 
   code goes here 
```

````

You can edit and correct your post by clicking the pencil ✏ icon.

See this post for more details - [How to share code or flow json](https://discourse.nodered.org/t/how-to-share-code-or-flow-json/506)

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