# Bar30 Pressure Sensor Using Labview

**URL:** <https://discuss.bluerobotics.com/t/bar30-pressure-sensor-using-labview/4876>\
**Category:** Sensors\
**Created:** [April 18, 2019, 8:34pm UTC](https://discuss.bluerobotics.com/t/bar30-pressure-sensor-using-labview/4876 "2019-04-18T20:34:24Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![alexperrysc](https://avatars.discourse-cdn.com/v4/letter/a/b487fb/32.png) [@alexperrysc](https://discuss.bluerobotics.com/u/alexperrysc)\
**Post date:** [April 18, 2019, 8:34pm UTC](https://discuss.bluerobotics.com/t/bar30-pressure-sensor-using-labview/4876/1 "2019-04-18T20:34:24Z")

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Hello to all, I am using the Bar30 pressure sensor on a sub ROV. Unlike many on this website, I am using a myRIO and coding in LabVIEW. My issue is that I have a working code that displays the correct temperature. However, the value for pressure (millibar) does not change when the ROV is placed in water. My VI shows that I am constantly receiving data, but the data does not change with respect to depth. Anybody out here good with LabVIEW or familiar with this situation? I will be happy to post code. This is my first time posting so please be gentle

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**Author:** ![jwalser](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/jwalser/32/2234_2.png) [@jwalser](https://discuss.bluerobotics.com/u/jwalser)\
**Post date:** [April 19, 2019, 6:34pm UTC](https://discuss.bluerobotics.com/t/bar30-pressure-sensor-using-labview/4876/2 "2019-04-19T18:34:01Z")

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This sounds like a bug your code. Please post your code.

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**Author:** ![alexperrysc](https://avatars.discourse-cdn.com/v4/letter/a/b487fb/32.png) [@alexperrysc](https://discuss.bluerobotics.com/u/alexperrysc)\
**Post date:** [April 19, 2019, 8:07pm UTC](https://discuss.bluerobotics.com/t/bar30-pressure-sensor-using-labview/4876/3 "2019-04-19T20:07:44Z")

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The forum won't let me post anything since I am a new user :-( I will be glad to send in email. Sorry if that sounds sketchy

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**Author:** ![patrickelectric](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/patrickelectric/32/2162_2.png) [@patrickelectric](https://discuss.bluerobotics.com/u/patrickelectric)\
**Post date:** [April 19, 2019, 10:08pm UTC](https://discuss.bluerobotics.com/t/bar30-pressure-sensor-using-labview/4876/4 "2019-04-19T22:08:13Z")

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You can post in [pastebin.com](http://pastebin.com) and share the link here.

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**Author:** ![hfjnsen](https://avatars.discourse-cdn.com/v4/letter/h/eada6e/32.png) [@hfjnsen](https://discuss.bluerobotics.com/u/hfjnsen)\
**Post date:** [May 23, 2024, 5:52am UTC](https://discuss.bluerobotics.com/t/bar30-pressure-sensor-using-labview/4876/5 "2024-05-23T05:52:36Z")

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Maybe there’s a bug in your sensor that is not showing actual readings, I recommend you to explore more [pressure sensors](https://hfjensen.com/product-categories/pressure/) to get perfect results.

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**Author:** ![tony-white](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/tony-white/32/13297_2.png) [@tony-white](https://discuss.bluerobotics.com/u/tony-white)\
**Post date:** [May 23, 2024, 4:03pm UTC](https://discuss.bluerobotics.com/t/bar30-pressure-sensor-using-labview/4876/6 "2024-05-23T16:03:01Z")

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Hi @hfjnsen -  
Welcome to the forums! Looking at the sensors in the link you shared, none of those seem to have an output format that would be compatible with ArduSub or Navigator / Pixhawk autopilots. They require a I2C digital interface and appropriate driver, so 4-20mA or DC voltage proportional signal would require considerable adaptation…  
Thanks for sharing!

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**Author:** ![hfjnsen](https://avatars.discourse-cdn.com/v4/letter/h/eada6e/32.png) [@hfjnsen](https://discuss.bluerobotics.com/u/hfjnsen)\
**Post date:** [May 24, 2024, 4:22am UTC](https://discuss.bluerobotics.com/t/bar30-pressure-sensor-using-labview/4876/7 "2024-05-24T04:22:13Z")

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I mentioned them because they customize sensors according to requirements.