# How to use 2 NodeMCU to one node-red?

**URL:** https://discourse.nodered.org/t/how-to-use-2-nodemcu-to-one-node-red/28389
**Category:** General
**Created:** [16 June 2020 07:35 UTC](https://discourse.nodered.org/t/how-to-use-2-nodemcu-to-one-node-red/28389 "2020-06-16T07:35:21Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![budiman098](https://avatars.discourse-cdn.com/v4/letter/b/3ab097/32.png) [@budiman098](https://discourse.nodered.org/u/budiman098)
#### Post date: [16 June 2020 07:35 UTC](https://discourse.nodered.org/t/how-to-use-2-nodemcu-to-one-node-red/28389/1 "2020-06-16T07:35:21Z")

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hallo, can someone help me?  
i want use 2 NodeMCU in one node-red, when i use one by one my nodemcu, its worked.  
but when i combine my nodeMCU it's not worked worked, just one cencor read.  
my flow like this and i make it in raspberry.  
 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/1/8/18aea9d32bd08fca1dfc52c7e4b94773318983f1.jpeg)  
the dashboard like this, and not read new value:  
 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/4/d/4d7b1dbf9b702c2872287e654f08d3a9c452be14.png)  
i try to make solution, i make 2 nodeMCU to sending the data string in debug node-red and it's worked, like this:

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/b/1/b152b026da4a0427fb041d92cfaec2e7f3a2289b.jpeg)  
so i try to connect the cencor again, but it's not worked.  
can some help me?  
thank you, regards

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<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: [15 August 2020 07:35 UTC](https://discourse.nodered.org/t/how-to-use-2-nodemcu-to-one-node-red/28389/2 "2020-08-15T07:35:27Z")

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