# Toggle GPIO Input
**URL:** https://discourse.nodered.org/t/toggle-gpio-input/60643
**Category:** General
**Created:** [1 April 2022 10:23 UTC](https://discourse.nodered.org/t/toggle-gpio-input/60643 "2022-04-01T10:23:41Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@BWTH](https://discourse.nodered.org/u/BWTH)
#### Post date: [1 April 2022 10:23 UTC](https://discourse.nodered.org/t/toggle-gpio-input/60643/1 "2022-04-01T10:23:41Z")
Hi
i am looking for an funktion that does the following:
on my Raspberry when i push an button (GPIO in 7), than i want to send out udp1, if i push the same button a second time i want to send out udp2, and than if i push the button another time i want to sent out udp1....so now i have tried it with the toggle note, but i have no result which is working. any ideas for an beginner to solve the problem
thanks
---
### Author:  [@mickym2](https://discourse.nodered.org/u/mickym2)
#### Post date: [1 April 2022 11:40 UTC](https://discourse.nodered.org/t/toggle-gpio-input/60643/2 "2022-04-01T11:40:18Z")
You need to save the last state in a context which can be remembered when the next msg arrives. Either you take a flow variable or a context variable in a function node.
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### Author:  [@BWTH](https://discourse.nodered.org/u/BWTH)
#### Post date: [1 April 2022 18:00 UTC](https://discourse.nodered.org/t/toggle-gpio-input/60643/3 "2022-04-01T18:00:23Z")
thanks, but for me as an beginner this is too compicated, is there no other way. over a node witch i can install?
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### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [1 April 2022 20:26 UTC](https://discourse.nodered.org/t/toggle-gpio-input/60643/4 "2022-04-01T20:26:43Z")
Did you try searching [flows.nodered.org](http://flows.nodered.org) for Toggle. I found this very quickly there. I haven't tried it but it looks close to what you want. [Toggle Switch Subflow (flow) - Node-RED](https://flows.nodered.org/flow/15c17f3445639d90139f4b05113f4a8d)
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### Author:  [@mickym2](https://discourse.nodered.org/u/mickym2)
#### Post date: [1 April 2022 20:27 UTC](https://discourse.nodered.org/t/toggle-gpio-input/60643/5 "2022-04-01T20:27:57Z")
Import this function node:
```auto
[
{
"id": "db823e37fd839077",
"type": "function",
"z": "f87aa05e3297dcd1",
"name": "",
"func": "var output = !(context.get(\"toogle\")||false);\ncontext.set(\"toogle\",output);\nmsg.payload = output ? \"udp1\" : \"udp2\";\nreturn msg;",
"outputs": 1,
"noerr": 0,
"initialize": "",
"finalize": "",
"libs": [],
"x": 720,
"y": 1040,
"wires": [
[
"6d935a3dcad3e665"
]
]
}
]
```
toogles your output.
---
### Author:  [@BWTH](https://discourse.nodered.org/u/BWTH)
#### Post date: [2 April 2022 06:00 UTC](https://discourse.nodered.org/t/toggle-gpio-input/60643/6 "2022-04-02T06:00:24Z")
thank you, that works perfect
---
### Author:  [@cymplecy](https://discourse.nodered.org/u/cymplecy)
#### Post date: [2 April 2022 06:32 UTC](https://discourse.nodered.org/t/toggle-gpio-input/60643/7 "2022-04-02T06:32:58Z")
No code version
```auto
[
{
"id": "db823e37fd839077",
"type": "function",
"z": "f87aa05e3297dcd1",
"name": "",
"func": "var output = !(context.get(\"toogle\")||false);\ncontext.set(\"toogle\",output);\nmsg.payload = output ? \"udp1\" : \"udp2\";\nreturn msg;",
"outputs": 1,
"noerr": 0,
"initialize": "",
"finalize": "",
"libs": [],
"x": 720,
"y": 1040,
"wires": [
[
"6d935a3dcad3e665"
]
]
}
]
```
---
### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [1 June 2022 06:33 UTC](https://discourse.nodered.org/t/toggle-gpio-input/60643/8 "2022-06-01T06:33:49Z")
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