# Multiple GPIO pins on Raspberry with https://flows.nodered.org/node/node-red-node-pi-gpio
**URL:** https://discourse.nodered.org/t/multiple-gpio-pins-on-raspberry-with-https-flows-nodered-org-node-node-red-node-pi-gpio/61330
**Category:** General
**Created:** [15 April 2022 12:21 UTC](https://discourse.nodered.org/t/multiple-gpio-pins-on-raspberry-with-https-flows-nodered-org-node-node-red-node-pi-gpio/61330 "2022-04-15T12:21:35Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@mibian](https://discourse.nodered.org/u/mibian)
#### Post date: [15 April 2022 12:21 UTC](https://discourse.nodered.org/t/multiple-gpio-pins-on-raspberry-with-https-flows-nodered-org-node-node-red-node-pi-gpio/61330/1 "2022-04-15T12:21:36Z")
I have made a solution, that referenceses several sources for information, a file, a webpage etc. It then determins the proper state for a GPIO pin from the data, and sets it.
My problem is that the GPIO node only takes it's input from msg.payload, so I don't see any way of controlling other GPIO pins on the raspberry from the same function node, and it's a pain to do some of the same work multiple times in different function nodes.
I guess another option was to use some global variables, but as I read it around here, that is frowned upon :o)
Does anyone have any better ideas?
Thanks
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### Author:  [@zenofmud](https://discourse.nodered.org/u/zenofmud)
#### Post date: [15 April 2022 12:39 UTC](https://discourse.nodered.org/t/multiple-gpio-pins-on-raspberry-with-https-flows-nodered-org-node-node-red-node-pi-gpio/61330/2 "2022-04-15T12:39:07Z")
> [@mibian](#):
>
> I guess another option was to use some global variables, but as I read it around here, that is frowned upon :o)
That is only an opinion by some, I use global, flow and context variables where they make sense. After all, if it was really a bad idea, why would it be offered??
As for the gpio nodes, you will need a separate gpio node for each pin you want to use. They are not able to be dynamically set.
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### Author:  [@mibian](https://discourse.nodered.org/u/mibian)
#### Post date: [16 April 2022 07:04 UTC](https://discourse.nodered.org/t/multiple-gpio-pins-on-raspberry-with-https-flows-nodered-org-node-node-red-node-pi-gpio/61330/3 "2022-04-16T07:04:07Z")
Thankyou Paul 🙂
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### Author:  [@jbudd](https://discourse.nodered.org/u/jbudd)
#### Post date: [16 April 2022 11:09 UTC](https://discourse.nodered.org/t/multiple-gpio-pins-on-raspberry-with-https-flows-nodered-org-node-node-red-node-pi-gpio/61330/4 "2022-04-16T11:09:27Z")
Your function can set msg.gpio1, msg.gpio2 etc.
Pass the output via change nodes, which move eg msg.gpio2 to msg.payload.
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### Author:  [@mibian](https://discourse.nodered.org/u/mibian)
#### Post date: [16 April 2022 13:10 UTC](https://discourse.nodered.org/t/multiple-gpio-pins-on-raspberry-with-https-flows-nodered-org-node-node-red-node-pi-gpio/61330/5 "2022-04-16T13:10:25Z")
Thank you 🙂
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### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [15 June 2022 13:11 UTC](https://discourse.nodered.org/t/multiple-gpio-pins-on-raspberry-with-https-flows-nodered-org-node-node-red-node-pi-gpio/61330/6 "2022-06-15T13:11:04Z")
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