# Nodered can't turn on/off digital pin

**URL:** <https://discourse.nodered.org/t/nodered-cant-turn-on-off-digital-pin/43276>\
**Category:** General\
**Created:** [27 March 2021 11:40 UTC](https://discourse.nodered.org/t/nodered-cant-turn-on-off-digital-pin/43276 "2021-03-27T11:40:13Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![faprile](https://avatars.discourse-cdn.com/v4/letter/f/f6c823/32.png) [@faprile](https://discourse.nodered.org/u/faprile)\
**Post date:** [27 March 2021 11:40 UTC](https://discourse.nodered.org/t/nodered-cant-turn-on-off-digital-pin/43276/1 "2021-03-27T11:40:13Z")

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Hello,  
I have installed nodered whit the script.

I'm trying to run my firs flow, i read this guide [https://projects.raspberrypi.org/en/projects/getting-started-with-node-red](https://projects.raspberrypi.org/en/projects/getting-started-with-node-red).

I can't tur on or off my led, it's always on.

Any suggestion?

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**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [27 March 2021 13:32 UTC](https://discourse.nodered.org/t/nodered-cant-turn-on-off-digital-pin/43276/2 "2021-03-27T13:32:06Z")

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welcome to the forum @faprile

Are you sure you have it on the correct pin? Pin number can confusing.

Does the status display by the node in the editor show it changing?

Please post a screenshot of the GPIO node configuration (you can paste an image here directly). Also connect a debug node showing what is going into the GPIO node and show us what it shows.

How did you install node-red? Did you use the [recommended script](https://nodered.org/docs/getting-started/raspberrypi)?

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<div class="post-metadata">

**Author:** ![faprile](https://avatars.discourse-cdn.com/v4/letter/f/f6c823/32.png) [@faprile](https://discourse.nodered.org/u/faprile)\
**Post date:** [27 March 2021 13:47 UTC](https://discourse.nodered.org/t/nodered-cant-turn-on-off-digital-pin/43276/3 "2021-03-27T13:47:38Z")

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thank for your reply

finnaly just the ribbon pluged in wrong mode.....

newbey mistake

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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:** [10 April 2021 13:48 UTC](https://discourse.nodered.org/t/nodered-cant-turn-on-off-digital-pin/43276/4 "2021-04-10T13:48:29Z")

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