# Pi Keyboard and usb hub

**URL:** <https://discourse.nodered.org/t/pi-keyboard-and-usb-hub/48939>\
**Category:** Hardware\
**Created:** [26 July 2021 19:56 UTC](https://discourse.nodered.org/t/pi-keyboard-and-usb-hub/48939 "2021-07-26T19:56:09Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![ttavlis](https://avatars.discourse-cdn.com/v4/letter/t/7993a0/32.png) [@ttavlis](https://discourse.nodered.org/u/ttavlis)\
**Post date:** [26 July 2021 19:56 UTC](https://discourse.nodered.org/t/pi-keyboard-and-usb-hub/48939/1 "2021-07-26T19:56:09Z")

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Hello all,  
a weird issue here, but hopefully somebody else has experienced it or knows how to solve it very easily.  
As the title says, I have a card reader connected directly to my pi zero w. When checking the output of the pi keyboard after reading a card, it is all fine.  
When I attach the card reader to a usb hub, the msg.output does not show anything else.  
When reading a card while on the Linux console, also with the usb hub connected, it works.  
I suspect it is something in fact in the pi keyboard itself.  
Does anybody know this issue, or has an idea on how to solve it?

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**Author:** ![TotallyInformation](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/totallyinformation/32/31_2.png) [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Post date:** [26 July 2021 20:38 UTC](https://discourse.nodered.org/t/pi-keyboard-and-usb-hub/48939/2 "2021-07-26T20:38:19Z")

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Hi @ttavlis, this isn't a Node-RED question. At the least it probably should go in the hardware category.

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**Author:** ![cymplecy](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/cymplecy/32/2773_2.png) [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Post date:** [26 July 2021 22:11 UTC](https://discourse.nodered.org/t/pi-keyboard-and-usb-hub/48939/3 "2021-07-26T22:11:10Z")

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Or maybe ask it on the Pi forum

[https://www.raspberrypi.org/forums/](https://www.raspberrypi.org/forums/)

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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 2021 22:11 UTC](https://discourse.nodered.org/t/pi-keyboard-and-usb-hub/48939/4 "2021-09-24T22:11:41Z")

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