# Always relay on when starting cubepilot

**URL:** <https://discuss.cubepilot.org/t/always-relay-on-when-starting-cubepilot/7656>\
**Category:** Cube Autopilot\
**Created:** [27 October 2021 18:55 UTC](https://discuss.cubepilot.org/t/always-relay-on-when-starting-cubepilot/7656 "2021-10-27T18:55:06Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Jesus\_Maria\_Nuin](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/jesus_maria_nuin/32/4038_2.png) [@Jesus\_Maria\_Nuin](https://discuss.cubepilot.org/u/Jesus_Maria_Nuin)\
**Post date:** [27 October 2021 18:55 UTC](https://discuss.cubepilot.org/t/always-relay-on-when-starting-cubepilot/7656/1 "2021-10-27T18:55:06Z")

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I have configured Cube Orange with Ardupilot a relay in the output of auxiliary 5. It is well configured as indicated in the Ardupilot documentation and it works correctly.  
The problem is that when Cube Orange is turned on, for a few moments during the load the relay goes to the ON state for a few seconds and then returns to its OFF position when the cube has started completely. How do I fix this?  
Thank you.

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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 November 2021 03:02 UTC](https://discuss.cubepilot.org/t/always-relay-on-when-starting-cubepilot/7656/2 "2021-11-01T03:02:06Z")

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What relay are you using? I could imagine maybe the uncontrolled voltage during Cube’s initializing turned on the relay?

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**Author:** ![Jesus\_Maria\_Nuin](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/jesus_maria_nuin/32/4038_2.png) [@Jesus\_Maria\_Nuin](https://discuss.cubepilot.org/u/Jesus_Maria_Nuin)\
**Post date:** [2 November 2021 17:24 UTC](https://discuss.cubepilot.org/t/always-relay-on-when-starting-cubepilot/7656/3 "2021-11-02T17:24:43Z")

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The relay is one like this: [https://www.amazon.es/ARCELI-Channel-Optocouplador-Soporte-alimentación/dp/B07RKH9KLM](https://www.amazon.es/ARCELI-Channel-Optocouplador-Soporte-alimentaci%C3%B3n/dp/B07RKH9KLM)

At the beginning and with a tester, a constant 3.3 V is seen on the signal pin until after 1 second it reaches almost 0V.  
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:** [3 November 2021 02:42 UTC](https://discuss.cubepilot.org/t/always-relay-on-when-starting-cubepilot/7656/4 "2021-11-03T02:42:01Z")

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> <https://github.com/ArduPilot/ardupilot/issues/1239#issuecomment-50219588>
>
> The parachute release can use a servo or a "relay" (an i/o pin). These are going high when the APM and...

It looks like this is a problem recognized long ago before.  
Randy (rmackay9) has explained in the link above. This is a low level driver setting which is uncontrolled by any autopilot firmware.  
So you may need to change it to another type of trigger if the function is critical. Eg: Parachute mentioned in the link.

edit: Randy’s user name

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**Author:** ![Jesus\_Maria\_Nuin](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/jesus_maria_nuin/32/4038_2.png) [@Jesus\_Maria\_Nuin](https://discuss.cubepilot.org/u/Jesus_Maria_Nuin)\
**Post date:** [3 November 2021 09:33 UTC](https://discuss.cubepilot.org/t/always-relay-on-when-starting-cubepilot/7656/5 "2021-11-03T09:33:02Z")

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Thank you very much 🙂 I could not find that comment from Randy, I will follow your recommendation … thank you, greetings