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**Category:** General\
**Created:** [21 February 2019 16:16 UTC](https://discourse.nodered.org/t/html-to-activate-gpio/8232 "2019-02-21T16:16:27Z")\
**Posts on this page:** 9\
**Page:** 1
**Author:**  [@southside94](https://discourse.nodered.org/u/southside94)\
**Post date:** [21 February 2019 16:16 UTC](https://discourse.nodered.org/t/html-to-activate-gpio/8232/1 "2019-02-21T16:16:27Z")
Hello together,
for the first, excuse me for my bad english.
for the second, I doesn't know much about programming.
what i want to do is:
html to activate a GPIO for maybe 15 minutes
so when I write "[http://192.168.X.X/test/GPIO2](http://192.168.X.X/test/GPIO2)" in my browser, i want to activate the GPIO2
when I write "[http://192.168.X.X/test/GPIO3](http://192.168.X.X/test/GPIO3)" in my browser, i want to activate the GPIO3
I hope you can help me.
And again, excuse me for my bad english, I am german.
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**Author:**  [@KenioCarvalho](https://discourse.nodered.org/u/KenioCarvalho)\
**Post date:** [21 February 2019 16:33 UTC](https://discourse.nodered.org/t/html-to-activate-gpio/8232/2 "2019-02-21T16:33:54Z")
If you are using node-red on Raspberry PI use the http request node ([https://pt.coursera.org/lecture/developer-nodered/creating-a-web-api-in-node-red-part-1-Io3F1](https://pt.coursera.org/lecture/developer-nodered/creating-a-web-api-in-node-red-part-1-Io3F1)) and use the raspberrypi nodes [https://projects.raspberrypi.org/en/projects/getting-started-with-node-red/7](https://projects.raspberrypi.org/en/projects/getting-started-with-node-red/7)
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**Author:**  [@southside94](https://discourse.nodered.org/u/southside94)\
**Post date:** [21 February 2019 18:33 UTC](https://discourse.nodered.org/t/html-to-activate-gpio/8232/3 "2019-02-21T18:33:02Z")
Okay but i don`t know, how i can do it.
When i write "[http://192.168.178.35/test?test=GPIO](http://192.168.178.35/test?test=GPIO)" i receive it.
But how can i go on with this information?
i mean my GPIO needs a 0 or \>1 to switch.
and in the funktion how can i say when GPIO1 then Out1 and when GPIO2 then Out2
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**Author:**  [@ukmoose](https://discourse.nodered.org/u/ukmoose)\
**Post date:** [21 February 2019 18:53 UTC](https://discourse.nodered.org/t/html-to-activate-gpio/8232/4 "2019-02-21T18:53:16Z")
Take a look at the switch node and the change node
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**Author:**  [@KenioCarvalho](https://discourse.nodered.org/u/KenioCarvalho)\
**Post date:** [21 February 2019 18:54 UTC](https://discourse.nodered.org/t/html-to-activate-gpio/8232/5 "2019-02-21T18:54:23Z")
Try using the switch node and get the data from msg.req.test. Send the payload do desired output
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**Author:**  [@southside94](https://discourse.nodered.org/u/southside94)\
**Post date:** [21 February 2019 18:58 UTC](https://discourse.nodered.org/t/html-to-activate-gpio/8232/6 "2019-02-21T18:58:19Z")
how can i send it to the payload?
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**Author:**  [@KenioCarvalho](https://discourse.nodered.org/u/KenioCarvalho)\
**Post date:** [21 February 2019 19:03 UTC](https://discourse.nodered.org/t/html-to-activate-gpio/8232/7 "2019-02-21T19:03:04Z")
on a function node
var gpio = msg.req.test
msg.payload = {"gpio": gpio}
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**Author:**  [@southside94](https://discourse.nodered.org/u/southside94)\
**Post date:** [21 February 2019 21:32 UTC](https://discourse.nodered.org/t/html-to-activate-gpio/8232/8 "2019-02-21T21:32:43Z")
i tryed it but it doesn't worked.
my flow is like this:
1. http node with "Method GET" an "URL /test"
2. funktion node with:
"var gpio = msg.req.test;"
"msg.payload = {"gpio":gpio};"
3. switch node, here i don't know what to do!!!
4. GPIO node
my URL is "[http://192.168.178.35/test?test=gpio](http://192.168.178.35/test?test=gpio)"
can you say me what i have to do?
what im looking for ist to switch on GPIO2 when the URL ist test=GPIO2, an to switch on GPIO3 when the URL ist test=GPIO3.
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**Author:**  [@ukmoose](https://discourse.nodered.org/u/ukmoose)\
**Post date:** [22 February 2019 08:37 UTC](https://discourse.nodered.org/t/html-to-activate-gpio/8232/9 "2019-02-22T08:37:40Z")
Please export your flow
Then read the following post [How to share code or flow json](https://discourse.nodered.org/t/how-to-share-code-or-flow-json/506?u=ukmoose) and follow the instructions to post your flow here.