# ArduSub Simulation SITL , Qground issue and Control

**URL:** <https://discuss.bluerobotics.com/t/ardusub-simulation-sitl-qground-issue-and-control/13790>\
**Category:** General Discussion\
**Tags:** ardusub, pymavlink, sitl, simulate\
**Created:** [February 28, 2023, 10:49pm UTC](https://discuss.bluerobotics.com/t/ardusub-simulation-sitl-qground-issue-and-control/13790 "2023-02-28T22:49:59Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![EliotBR](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/eliotbr/32/6937_2.png) [@EliotBR](https://discuss.bluerobotics.com/u/EliotBR)\
**Post date:** [March 2, 2023, 12:05pm UTC](https://discuss.bluerobotics.com/t/ardusub-simulation-sitl-qground-issue-and-control/13790/2 "2023-03-02T12:05:58Z")

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Hi @reimonha,

It may be necessary to [add another UDP connection](https://discuss.bluerobotics.com/t/3rd-party-software-control-rc-override-vs-manual-control/5169/4) to avoid connection conflicts between QGC and your Pymavlink program - in general only one program can connect to a given port.

> [@reimonha](#):
>
> Is there a way to control the simulated ROV? Like with a joystick like a normal ROV?

When the connection is established correctly it should be possible to control the simulated ROV with a joystick, just like normal. Note that there will likely be issues attempting to do so if you are sending commands via a separate pymavlink program at the same time.

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