# Temperature Penetrator and Depth Sensor on Pixhawk

**URL:** <https://discuss.bluerobotics.com/t/temperature-penetrator-and-depth-sensor-on-pixhawk/4466>\
**Category:** QGroundControl\
**Created:** [February 27, 2019, 4:54am UTC](https://discuss.bluerobotics.com/t/temperature-penetrator-and-depth-sensor-on-pixhawk/4466 "2019-02-27T04:54:45Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![jjabraham](https://avatars.discourse-cdn.com/v4/letter/j/f08c70/32.png) [@jjabraham](https://discuss.bluerobotics.com/u/jjabraham)\
**Post date:** [February 27, 2019, 4:54am UTC](https://discuss.bluerobotics.com/t/temperature-penetrator-and-depth-sensor-on-pixhawk/4466/1 "2019-02-27T04:54:45Z")

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im trying to find a way to connect my fast response temperature sensor and my depth sensor to my pixhawk but i only see 1 I2C port. BTW i need to use the fast response sensor, i cant use the built in temp sensor in the depth sensor.

this is probably a dump question but do i need the depth sensor for Depth Hold.

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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:** [February 27, 2019, 2:35pm UTC](https://discuss.bluerobotics.com/t/temperature-penetrator-and-depth-sensor-on-pixhawk/4466/2 "2019-02-27T14:35:44Z")

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> [@jjabraham](#):
>
> im trying to find a way to connect my fast response temperature sensor and my depth sensor to my pixhawk but i only see 1 I2C port. BTW i need to use the fast response sensor, i cant use the built in temp sensor in the depth sensor.

You need a “df-13 i2c bus splitter”

> [@jjabraham](#):
>
> this is probably a dump question but do i need the depth sensor for Depth Hold.

Yes.