# Edge actions - how to write to gpio1 on pin 24 iot card?

**URL:** <https://forum.sierrawireless.com/t/edge-actions-how-to-write-to-gpio1-on-pin-24-iot-card/18529>\
**Category:** Octave\
**Created:** [December 2, 2019, 12:43pm UTC](https://forum.sierrawireless.com/t/edge-actions-how-to-write-to-gpio1-on-pin-24-iot-card/18529 "2019-12-02T12:43:59Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![elkanam](https://avatars.discourse-cdn.com/v4/letter/e/b77776/32.png) [@elkanam](https://forum.sierrawireless.com/u/elkanam)\
**Post date:** [December 2, 2019, 12:43pm UTC](https://forum.sierrawireless.com/t/edge-actions-how-to-write-to-gpio1-on-pin-24-iot-card/18529/1 "2019-12-02T12:43:59Z")

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hi  
i’m trying to create edge action to on a load.  
I am trying to read a push-button INPUT on pin26 at iot card, the and cannot write to Port GPIO1\_PIN24.  
The value is true or false.  
What am I missing here?

> function(event){
> 
> var result = Datahub.read(‘/io/IOT0\_GPIO3\_pin26/value’, null);  
> var \_t\_slot\_0\_on\_pin\_20 = result ? result.value: null;  
> var val = true;
> 
> if (\_t\_slot\_0\_on\_pin\_20){  
> val = false;}
> 
> return  
> {  
> ‘dh://io/IOT0\_GPIO1\_PIN24/value’ [val]  
> }  
> }

thanks  
elkana

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<div class="post-metadata">

**Author:** ![jcoutellec](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jcoutellec/32/4788_2.png) [@jcoutellec](https://forum.sierrawireless.com/u/jcoutellec)\
**Post date:** [December 2, 2019, 3:15pm UTC](https://forum.sierrawireless.com/t/edge-actions-how-to-write-to-gpio1-on-pin-24-iot-card/18529/2 "2019-12-02T15:15:07Z")

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```
function(event) {

	var result = Datahub.read("/io/IOT0_GPIO3_pin26/value", 0);
	var _t_slot_0_on_pin_20 = result ? result.value: null;
	var val = !!_t_slot_0_on_pin_20;

	return {"dh://io/IOT0_GPIO1_PIN24/value":[val]} 
}

```

A ‘:’ is missing before [val]

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<div class="post-metadata">

**Author:** ![thibs](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/thibs/32/953_2.png) [@thibs](https://forum.sierrawireless.com/u/thibs)\
**Post date:** [December 3, 2019, 2:52pm UTC](https://forum.sierrawireless.com/t/edge-actions-how-to-write-to-gpio1-on-pin-24-iot-card/18529/3 "2019-12-03T14:52:29Z")

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Hi Elkanam,  
Is it working now? If not, could you please tell me what device you are using? (mangOH Red, mangOH Yellow, FX30, or your own?)  
Thanks  
.Thibault.

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<div class="post-metadata">

**Author:** ![elkanam](https://avatars.discourse-cdn.com/v4/letter/e/b77776/32.png) [@elkanam](https://forum.sierrawireless.com/u/elkanam)\
**Post date:** [December 3, 2019, 4:49pm UTC](https://forum.sierrawireless.com/t/edge-actions-how-to-write-to-gpio1-on-pin-24-iot-card/18529/4 "2019-12-03T16:49:38Z")

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Thanks  
It’s working.  
I’m on MangoH yellow.