# Raspberry PI connect to RS485

**URL:** <https://discourse.nodered.org/t/raspberry-pi-connect-to-rs485/24502>\
**Category:** General\
**Created:** [9 April 2020 07:03 UTC](https://discourse.nodered.org/t/raspberry-pi-connect-to-rs485/24502 "2020-04-09T07:03:25Z")\
**Posts on this page:** 1\
**Showing post:** 34

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**Author:** ![Bond](https://avatars.discourse-cdn.com/v4/letter/b/9dc877/32.png) [@Bond](https://discourse.nodered.org/u/Bond)\
**Post date:** [22 April 2020 02:13 UTC](https://discourse.nodered.org/t/raspberry-pi-connect-to-rs485/24502/34 "2020-04-22T02:13:32Z")

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i'm writing some command to read the controller status. But it give me some kind of none sense output.

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/d/a/da81b0c2b1db231f7bf9d8aad862e27e42a89c16.png)  
Fan1 is ON  
Fan 8 is OFF  
But the two output are pretty similar.

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