# Serial in node - no data

**URL:** <https://discourse.nodered.org/t/serial-in-node-no-data/81161>\
**Category:** General\
**Created:** [9 September 2023 16:34 UTC](https://discourse.nodered.org/t/serial-in-node-no-data/81161 "2023-09-09T16:34:00Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Paul-Reed](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/paul-reed/32/66906_2.png) [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\
**Post date:** [9 September 2023 16:34 UTC](https://discourse.nodered.org/t/serial-in-node-no-data/81161/1 "2023-09-09T16:34:00Z")

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I have some data arriving via RF to a Raspberry Pi 3b+ and can see the data arriving via minicom in the Pi using the command `sudo minicom -D /dev/ttyAMA0 -b9600`

![minicom](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/a/7/a7e734a7cf4030490274144a1fb43c7fb34cfa53.gif)

I'm trying to access that data by using a `serial in` node (which is also on the same Pi) set to the same port and baud rate, but there is no output whatsoever from the node.

Any ideas pls?

 ![minicom2](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/1/5/15c446a0667c3518d8de106134fb0af8d622939d.jpeg)

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**Author:** ![dceejay](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/dceejay/32/38_2.png) [@dceejay](https://discourse.nodered.org/u/dceejay)\
**Post date:** [9 September 2023 21:41 UTC](https://discourse.nodered.org/t/serial-in-node-no-data/81161/2 "2023-09-09T21:41:06Z")

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Make sure minicomputer is stopped before you start Node-RED as only one app can grab the serial port at a time.  
Then try splitting on a time of say 100mS rather than wait for a character  
Anfd is the user you are running Node-RED as in the dialout group so it can access the port ?

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<div class="post-metadata">

**Author:** ![Paul-Reed](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/paul-reed/32/66906_2.png) [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\
**Post date:** [10 September 2023 20:40 UTC](https://discourse.nodered.org/t/serial-in-node-no-data/81161/3 "2023-09-10T20:40:07Z")

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> [@dceejay](#):
>
> Then try splitting on a time of say 100mS rather than wait for a character

Splitting on time works for me.  
Thanks Dave 😃

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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:** [24 September 2023 20:40 UTC](https://discourse.nodered.org/t/serial-in-node-no-data/81161/4 "2023-09-24T20:40:40Z")

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