# Here2 barometer

**URL:** <https://discuss.cubepilot.org/t/here2-barometer/972>\
**Category:** Here GPS\
**Created:** [1 June 2019 18:26 UTC](https://discuss.cubepilot.org/t/here2-barometer/972 "2019-06-01T18:26:45Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![Azulay\_Ohad](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/azulay_ohad/32/553_2.png) [@Azulay\_Ohad](https://discuss.cubepilot.org/u/Azulay_Ohad)\
**Post date:** [1 June 2019 18:26 UTC](https://discuss.cubepilot.org/t/here2-barometer/972/1 "2019-06-01T18:26:45Z")

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Hi,  
I am building a waterproof drone and I need to use an external barometer.  
I have the here2 GPS and I don’t understand how I can use the barometer in it.  
I will appreciate any help.

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**Author:** ![hdtechk](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/hdtechk/32/14_2.png) [@hdtechk](https://discuss.cubepilot.org/u/hdtechk)\
**Post date:** [2 June 2019 02:39 UTC](https://discuss.cubepilot.org/t/here2-barometer/972/2 "2019-06-02T02:39:36Z")

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> [@Here 2 can update](https://discuss.cubepilot.org/t/here-2-can-update/471):
>
> Here2 CAN Mode Instruction Here2 Default factory setting is CAN mode with UAVCAN Protocol. Default Here2 CAN mode has three devices on CAN bus: GPS, magnetic compass, and barometer. The safety switch is not workable under CAN mode and the barometer is disabled in CAN mode by default. The barometer can be enabled by UAVCAN parameters setting. How to use CAN mode: Using Ardupilot Firmware: Current oﬃcial Ardupilot ﬁrmware (Copter3.6.7, Plane3.9.6 as well as previous versions) does not support …

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**Author:** ![yak-54](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/yak-54/32/2271_2.png) [@yak-54](https://discuss.cubepilot.org/u/yak-54)\
**Post date:** [2 June 2019 04:39 UTC](https://discuss.cubepilot.org/t/here2-barometer/972/3 "2019-06-02T04:39:38Z")

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what about Copter 3.6.9 and Plane 3.9.8 ?

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**Author:** ![Azulay\_Ohad](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/azulay_ohad/32/553_2.png) [@Azulay\_Ohad](https://discuss.cubepilot.org/u/Azulay_Ohad)\
**Post date:** [2 June 2019 12:59 UTC](https://discuss.cubepilot.org/t/here2-barometer/972/4 "2019-06-02T12:59:30Z")

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Thank you for the answer.  
I am now able to use the GPS through uavcan and i can see also the magnometer.  
but I don’t know where i can read the barometer and use it as my primary baro…

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**Author:** ![jace26](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/jace26/32/838_2.png) [@jace26](https://discuss.cubepilot.org/u/jace26)\
**Post date:** [24 September 2019 22:10 UTC](https://discuss.cubepilot.org/t/here2-barometer/972/5 "2019-09-24T22:10:53Z")

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Now at 3.9.11 on arduplane. Is there a way to get baro to work with CAN on this yet?

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**Author:** ![philip](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/philip/32/9035_2.png) [@philip](https://discuss.cubepilot.org/u/philip)\
**Post date:** [25 September 2019 22:43 UTC](https://discuss.cubepilot.org/t/here2-barometer/972/6 "2019-09-25T22:43:08Z")

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Use 4.0, yes, just enabled can Barometer

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**Author:** ![jace26](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/jace26/32/838_2.png) [@jace26](https://discuss.cubepilot.org/u/jace26)\
**Post date:** [27 September 2019 16:38 UTC](https://discuss.cubepilot.org/t/here2-barometer/972/7 "2019-09-27T16:38:56Z")

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Okay, I loaded Arduplane 4.0.0beta2, Can setup below, good compass and gps, but I don’t see parameters to select the baro, nor do I see response in the hud.

 ![image](https://discuss.cubepilot.org/uploads/default/original/2X/f/f3baeb932edda1ceb982fa13f71425c1953660a5.png)  
 ![image](https://discuss.cubepilot.org/uploads/default/original/2X/b/b34341b59c62ccc9ec58a589bb94d1c50f79e3de.png)

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<div class="post-metadata">

**Author:** ![philip](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/philip/32/9035_2.png) [@philip](https://discuss.cubepilot.org/u/philip)\
**Post date:** [29 September 2019 19:59 UTC](https://discuss.cubepilot.org/t/here2-barometer/972/8 "2019-09-29T19:59:21Z")

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Look under Barometer, not CAN

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**Author:** ![jace26](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/jace26/32/838_2.png) [@jace26](https://discuss.cubepilot.org/u/jace26)\
**Post date:** [30 September 2019 17:17 UTC](https://discuss.cubepilot.org/t/here2-barometer/972/9 "2019-09-30T17:17:43Z")

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Can you put up a guide concerning this? Or tell me what params to set? The documentation is all written toward i2c busses and sensors, so it seems unless you already know what to do, or how to read the code, then you’re stuck. Your CAN guide was good, got me right where I need to be, just take it one more step please.

I see no “Barometer” parameters in 4.0, so I assume you meand the GND parameters right? is there a specific GND\_Probe\_Ext value to set?

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**Author:** ![MadRC](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/madrc/32/2088_2.png) [@MadRC](https://discuss.cubepilot.org/u/MadRC)\
**Post date:** [30 September 2019 17:38 UTC](https://discuss.cubepilot.org/t/here2-barometer/972/10 "2019-09-30T17:38:39Z")

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I’ll have a look at this later and put something up

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<div class="post-metadata">

**Author:** ![jace26](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/jace26/32/838_2.png) [@jace26](https://discuss.cubepilot.org/u/jace26)\
**Post date:** [30 September 2019 18:29 UTC](https://discuss.cubepilot.org/t/here2-barometer/972/11 "2019-09-30T18:29:22Z")

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you got the baro working? that would be sweet.

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**Author:** ![Glenn](https://discuss.cubepilot.org/letter_avatar_proxy/v4/letter/g/4bbf92/32.png) [@Glenn](https://discuss.cubepilot.org/u/Glenn)\
**Post date:** [22 November 2019 05:56 UTC](https://discuss.cubepilot.org/t/here2-barometer/972/12 "2019-11-22T05:56:05Z")

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Set GND\_PROBE\_EXT value to 4.  
Then, I could able to see values on GND\_ABS\_PRESS3 parameter, which means the 3rd barometer (external) is working using CAN.  
However, there are no way to report the 3rd barometer in real-time to the ground station (Mission Planner). In Flight Data screen, i.e. press\_abs and press\_abs2 only (no press\_abs3?).

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**Author:** ![eminakgn](https://discuss.cubepilot.org/letter_avatar_proxy/v4/letter/e/e9c0ed/32.png) [@eminakgn](https://discuss.cubepilot.org/u/eminakgn)\
**Post date:** [15 April 2020 11:43 UTC](https://discuss.cubepilot.org/t/here2-barometer/972/13 "2020-04-15T11:43:39Z")

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Is observing GND\_ABS\_PRESS3 the only way to confirm Here 2 barometer is recognized and will be in use if GND\_PRIMARY set to ‘2’?

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**Author:** ![bobby\_watts](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/bobby_watts/32/660_2.png) [@bobby\_watts](https://discuss.cubepilot.org/u/bobby_watts)\
**Post date:** [23 September 2020 15:21 UTC](https://discuss.cubepilot.org/t/here2-barometer/972/14 "2020-09-23T15:21:53Z")

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Not seeing the BARO\_ENABLE feature on the CAN parameters with a Here3. Any assistance? Thnx

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<div class="post-metadata">

**Author:** ![philip](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/philip/32/9035_2.png) [@philip](https://discuss.cubepilot.org/u/philip)\
**Post date:** [27 October 2020 12:30 UTC](https://discuss.cubepilot.org/t/here2-barometer/972/15 "2020-10-27T12:30:06Z")

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here3 doesn’t have a Baro

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<div class="post-metadata">

**Author:** ![Mallikarjun\_SE](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/mallikarjun_se/32/7496_2.png) [@Mallikarjun\_SE](https://discuss.cubepilot.org/u/Mallikarjun_SE)\
**Post date:** [27 October 2020 15:35 UTC](https://discuss.cubepilot.org/t/here2-barometer/972/16 "2020-10-27T15:35:39Z")

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Because of water resistance? I really like Baro on Here2.

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**Author:** ![Norimbo](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/norimbo/32/107_2.png) [@Norimbo](https://discuss.cubepilot.org/u/Norimbo)\
**Post date:** [27 February 2022 14:17 UTC](https://discuss.cubepilot.org/t/here2-barometer/972/17 "2022-02-27T14:17:01Z")

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I am trying to enable barometer in HERE 2 GPS. It’s connected to Cube Black. I enabled it in SLcan options and set BARO\_PROBE\_EXT:4  
and still I can’t see the 3rd Baro sensor ???

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**Author:** ![Alvin](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/alvin/32/1000_2.png) [@Alvin](https://discuss.cubepilot.org/u/Alvin)\
**Post date:** [28 February 2022 09:10 UTC](https://discuss.cubepilot.org/t/here2-barometer/972/18 "2022-02-28T09:10:59Z")

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Are other Here2 components such as GPS and LED working good?

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<div class="post-metadata">

**Author:** ![Norimbo](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/norimbo/32/107_2.png) [@Norimbo](https://discuss.cubepilot.org/u/Norimbo)\
**Post date:** [28 February 2022 15:41 UTC](https://discuss.cubepilot.org/t/here2-barometer/972/19 "2022-02-28T15:41:45Z")

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Yes no problem I am using gps and compass as the primary

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**Author:** ![Alvin](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/alvin/32/1000_2.png) [@Alvin](https://discuss.cubepilot.org/u/Alvin)\
**Post date:** [1 March 2022 06:04 UTC](https://discuss.cubepilot.org/t/here2-barometer/972/20 "2022-03-01T06:04:28Z")

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Have you set BARO\_ENABLE in Here2 parameter via SLCAN?

[https://docs.cubepilot.org/user-guides/here-2/here-2-can-mode-instruction#allocating-node-id-method](https://docs.cubepilot.org/user-guides/here-2/here-2-can-mode-instruction#allocating-node-id-method)

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