# how do i exchange data between arduino and node red with the siemens iot2040

**URL:** https://discourse.nodered.org/t/how-do-i-exchange-data-between-arduino-and-node-red-with-the-siemens-iot2040/6618
**Category:** General
**Created:** [9 January 2019 16:58 UTC](https://discourse.nodered.org/t/how-do-i-exchange-data-between-arduino-and-node-red-with-the-siemens-iot2040/6618 "2019-01-09T16:58:18Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Markf2017](https://avatars.discourse-cdn.com/v4/letter/m/9d8465/32.png) [@Markf2017](https://discourse.nodered.org/u/Markf2017)
#### Post date: [9 January 2019 16:58 UTC](https://discourse.nodered.org/t/how-do-i-exchange-data-between-arduino-and-node-red-with-the-siemens-iot2040/6618/1 "2019-01-09T16:58:18Z")

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Hello,

im working on a project where i have to sent 8 sensor readings from the arduino side of the IOT2040 to node red. i dont know how to do it because im new to this, so any help would be appreciated.

Thanks in advance

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<div class="post-metadata">

### Author: ![krambriw](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/krambriw/32/5429_2.png) [@krambriw](https://discourse.nodered.org/u/krambriw)
#### Post date: [9 January 2019 17:09 UTC](https://discourse.nodered.org/t/how-do-i-exchange-data-between-arduino-and-node-red-with-the-siemens-iot2040/6618/2 "2019-01-09T17:09:19Z")

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Read & try

[https://www.rs-online.com/designspark/siemens-iot2020---installing-and-testing-node-red-mqtt-and-sqlite3](https://www.rs-online.com/designspark/siemens-iot2020---installing-and-testing-node-red-mqtt-and-sqlite3)

[https://support.industry.siemens.com/tf/WW/en/posts/iot2040-as-mqtt-broker/183080?page=0&pageSize=10](https://support.industry.siemens.com/tf/WW/en/posts/iot2040-as-mqtt-broker/183080?page=0&pageSize=10)