# Sensor API support for EM7421

**URL:** <https://forum.sierrawireless.com/t/sensor-api-support-for-em7421/31194>\
**Category:** IoT Modules\
**Created:** [December 6, 2023, 1:21am UTC](https://forum.sierrawireless.com/t/sensor-api-support-for-em7421/31194 "2023-12-06T01:21:40Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![michaelshalavin](https://avatars.discourse-cdn.com/v4/letter/m/7ba0ec/32.png) [@michaelshalavin](https://forum.sierrawireless.com/u/michaelshalavin)\
**Post date:** [December 6, 2023, 1:21am UTC](https://forum.sierrawireless.com/t/sensor-api-support-for-em7421/31194/1 "2023-12-06T01:21:40Z")

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Hi there  
Does Sierra provide a Sensor API driver for the EM7421?  
Cheers  
Michael

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**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\
**Post date:** [December 6, 2023, 2:24am UTC](https://forum.sierrawireless.com/t/sensor-api-support-for-em7421/31194/2 "2023-12-06T02:24:25Z")

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do you mean this sensor in device manager?

 ![image](https://us1.discourse-cdn.com/flex025/uploads/sierrawireless/original/2X/f/fa13a764ef741da050c10a20ee740c2fac60cafc.png)

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<div class="post-metadata">

**Author:** ![michaelshalavin](https://avatars.discourse-cdn.com/v4/letter/m/7ba0ec/32.png) [@michaelshalavin](https://forum.sierrawireless.com/u/michaelshalavin)\
**Post date:** [December 6, 2023, 4:01am UTC](https://forum.sierrawireless.com/t/sensor-api-support-for-em7421/31194/3 "2023-12-06T04:01:26Z")

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Hi Jyi Yip

Here is what we are offering the client with the EM7421

![](https://us1.discourse-cdn.com/flex025/uploads/sierrawireless/original/2X/c/c3893a2832d60a73bdad0d1534a691df47d05df8.png)

But they want…

![Image](https://us1.discourse-cdn.com/flex025/uploads/sierrawireless/original/2X/4/4864a2fba8f39c6f4aeb09a218b57baf9722137b.jpeg)

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<div class="post-metadata">

**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\
**Post date:** [December 6, 2023, 4:05am UTC](https://forum.sierrawireless.com/t/sensor-api-support-for-em7421/31194/4 "2023-12-06T04:05:51Z")

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see if this helps:

> [@EM7455 Cannot Obtain GPS Fix](https://forum.sierrawireless.com/t/em7455-cannot-obtain-gps-fix/27694/5):
>
> Tried indoor and outdoor. Yes. The mc7455 can supply voltage with At!WANT=1 I can see a list with 14 Satellites but no fix. I actually try a different way for testing. [Testen der Sensorfunktionalität mit dem Sensordiagnosetool - Windows drivers | Microsoft Docs](https://docs.microsoft.com/de-de/windows-hardware/drivers/sensors/the-sensor-diagnostic-tool)

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<div class="post-metadata">

**Author:** ![michaelshalavin](https://avatars.discourse-cdn.com/v4/letter/m/7ba0ec/32.png) [@michaelshalavin](https://forum.sierrawireless.com/u/michaelshalavin)\
**Post date:** [January 23, 2024, 5:46am UTC](https://forum.sierrawireless.com/t/sensor-api-support-for-em7421/31194/5 "2024-01-23T05:46:37Z")

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Hi there, sorry for the delay.  
What exactly do you want me to try? “EM7455 Cannot Obtain GPS Fix” is a very long page.  
Cheers  
Michael

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<div class="post-metadata">

**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\
**Post date:** [January 23, 2024, 5:52am UTC](https://forum.sierrawireless.com/t/sensor-api-support-for-em7421/31194/6 "2024-01-23T05:52:07Z")

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From the link, the driver says:

```auto
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; WIN8LOCATION=X
; Windows 8/10 Location Sensor Driver
; Only applicable to OEM .exe installers
; x=1, installed
; x=0, not installed
; Default: 1

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

```

you can re-install the USB driver of EM7421