# Writing KNX Sensordata to AWS Dynamo DB

**URL:** <https://discourse.nodered.org/t/writing-knx-sensordata-to-aws-dynamo-db/23452>\
**Category:** General\
**Created:** [22 March 2020 12:48 UTC](https://discourse.nodered.org/t/writing-knx-sensordata-to-aws-dynamo-db/23452 "2020-03-22T12:48:20Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![webmagier](https://avatars.discourse-cdn.com/v4/letter/w/c37758/32.png) [@webmagier](https://discourse.nodered.org/u/webmagier)\
**Post date:** [22 March 2020 12:48 UTC](https://discourse.nodered.org/t/writing-knx-sensordata-to-aws-dynamo-db/23452/1 "2020-03-22T12:48:20Z")

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I'm trying to write the ouput from my KNX sensor into a DynamoDB in the Amazon AWS cloud. I get the data as an ouput with the debug node. I'm pretty new to Node Red and JSON and I have no idea how to reference the message payload (Windspeed in my case) into the item field of the DynamoDB Node

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/0/3/03363b86247fa2359287ca897faa01bdea015a21.png)

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/b/1/b158ed8e5debbdbdae8ae04ddca0a964e982192a.png)

Thanks for your help in advance.

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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:** [21 May 2020 12:48 UTC](https://discourse.nodered.org/t/writing-knx-sensordata-to-aws-dynamo-db/23452/2 "2020-05-21T12:48:21Z")

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