# HereFlow approach of the obstacle

**URL:** <https://discuss.cubepilot.org/t/hereflow-approach-of-the-obstacle/8265>\
**Category:** HereFlow\
**Created:** [31 January 2022 15:28 UTC](https://discuss.cubepilot.org/t/hereflow-approach-of-the-obstacle/8265 "2022-01-31T15:28:41Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![frank](https://discuss.cubepilot.org/letter_avatar_proxy/v4/letter/f/3d9bf3/32.png) [@frank](https://discuss.cubepilot.org/u/frank)\
**Post date:** [31 January 2022 15:28 UTC](https://discuss.cubepilot.org/t/hereflow-approach-of-the-obstacle/8265/1 "2022-01-31T15:28:42Z")

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Good morning friends,

I’m doing some tests with a “battle” drone (that of experiments) on that I put a HereFlow (with Cube Black and Herelink as Tx) … I don’t use it on the Z axis but frontal as anti collision.  
My question is how can I have a kind of track on display Herelink (Solex) that indicates the approach of the obstacle (a bit like what happens on DJI)  
Is it possible ?? … thanks

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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:** [7 February 2022 01:14 UTC](https://discuss.cubepilot.org/t/hereflow-approach-of-the-obstacle/8265/2 "2022-02-07T01:14:43Z")

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I don’t think its a good idea to use Hereflow for obstacle avoidance, as you’re not using the full potential of it. Also the onboard lidar has only 2m of range.

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**Author:** ![frank](https://discuss.cubepilot.org/letter_avatar_proxy/v4/letter/f/3d9bf3/32.png) [@frank](https://discuss.cubepilot.org/u/frank)\
**Post date:** [7 February 2022 20:08 UTC](https://discuss.cubepilot.org/t/hereflow-approach-of-the-obstacle/8265/3 "2022-02-07T20:08:29Z")

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Hi Alvin … In fact I made some tests at the counter and we are on that fit. However what do you recommend to manage an anti-collision? Should I use the LW20C lightware ?? … Is it also possible to have a track on the display of the anticollision action? tnx 🙂

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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:** [8 February 2022 02:40 UTC](https://discuss.cubepilot.org/t/hereflow-approach-of-the-obstacle/8265/4 "2022-02-08T02:40:07Z")

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Those listed on Ardupilot wiki are good to use  
[https://ardupilot.org/copter/docs/common-proximity-landingpage.html#common-proximity-landingpage](https://ardupilot.org/copter/docs/common-proximity-landingpage.html#common-proximity-landingpage)