# Conductivity Sensor Integration into BlueROV2

**URL:** <https://discuss.bluerobotics.com/t/conductivity-sensor-integration-into-bluerov2/19127>\
**Category:** Hardware\
**Tags:** guide\
**Created:** [January 23, 2025, 1:17am UTC](https://discuss.bluerobotics.com/t/conductivity-sensor-integration-into-bluerov2/19127 "2025-01-23T01:17:36Z")\
**Posts on this page:** 1\
**Showing post:** 90

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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:** [May 6, 2026, 11:37pm UTC](https://discuss.bluerobotics.com/t/conductivity-sensor-integration-into-bluerov2/19127/90 "2026-05-06T23:37:12Z")

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> [@rsheffield99](#):
>
> Still no NAMED\_VALUE\_FLOAT values in the tflog or csv files created by QGC

[Last time I was trying to send custom named values to QGC](https://discuss.bluerobotics.com/t/adding-a-sensor-to-mavlink-stream/7985) it was necessary to make a custom version of QGC that knows about those different names for it to be able to use them. It seems [it still has a predefined list of them](https://github.com/mavlink/qgroundcontrol/blob/master/src/FirmwarePlugin/APM/ArduSubFirmwarePlugin.cc#L229), so I’d assume that’s still required.

> [@rsheffield99](#):
>
> I still get this strange entry when trying to monitor Mavlink with the Cockpit tool. Clearly, I am not getting NAMED\_VALUE\_FLOAT

That image looks like a normal NAMED\_VALUE\_FLOAT to me, just not the specific one _you’re_ trying to send. That one is apparently [from ArduPilot’s wind vane library](https://github.com/ArduPilot/ardupilot/blob/6cbdaefb68a672aca42fa654296b1610be8b4dd8/libraries/AP_WindVane/AP_WindVane.cpp#L444).

MAVLink has various messages that are used for multiple devices / data sources, and a live viewer of MAVLink messages is not great for differentiating those. Granted if it’s not changing at all then your messages aren’t being received by Cockpit, but that will be much easier to see if you check in Cockpit’s `Tools / Data-lake`, and search for “NAMED\_”, which should show you any and all named values being received, differentiated by their name.

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