SparkFun Reference Station WiFi

Hi, I am trying to use the SparkFun RTK Reference Station as a base station to send out RTK data to an RTK Facet. I currently have registered with rtk2go.com a mountpt. I have my reference and facet updated to v4.2.

My reference station will go into Survey-In Mode, then into Xmitting mode, but never into Casting mode.

Hi Andrew (@atimmons ),

Forgive me for asking the dumb questions, but have you given the Reference Station WiFi credentials? Or are you using Ethernet? You can check if it is sending corrections to RTK2go by checking:

http://rtk2go.com:2101/SNIP::MOUNTPT?baseName=YOUR_MOUNT_POINT

I hope this helps,
Paul

I am using WiFi, yes I think I have given it WiFi credentials since it is connecting to the router.

My Reference station was not sending corrections to rtk2go

I think my reference station is having issues connecting to my WiFi. It is able to see it, since if I go to cfgWiFi mode it sees the WiFi. But it is not connecting while in base mode.

And the facet I got to be a rover can connect to the WiFi, unlike the Reference Station.

And the facet was able to put out rtcm correction data

Hi Andrew,

OK - thanks!

Please double-check the Base NTRIP settings. If those are wrong, the Reference Station will not be able to connect to RTK2go.

If you can, please connect the CONFIG ESP32 USB port to your computer and open a serial terminal (e.g. Tera Term) at 115200 baud. The diagnostic messages may help. You should see messages when it attempts to connect to RTK2go.

I hope this helps,
Paul

My reference station is now working, apparently having the microSD card in the ref station was interfering with its ability to connect to wifi.

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Thank you Andrew - I’m glad it’s working,

I don’t think I’ve seen that microSD issue reported before, so I will try and replicate / investigate that.

Please let us know if you need more help,
Paul

I do not know if this is a my cell phone issue or if it is an issue with my Facet, for some reason my bluetooth (bt) will connect my phone to facet while in sw maps. Then after being connected for like 5 seconds, the bt connection goes away. Then the only way for me to get reconnected to the facet is to reset the facet.

iPhone or Android?

There is a lot of information at:

I hope this helps,
Paul

It’s an iPhone, I really do think it is a my phone issue. I have been following the second link’s guide.

Is it possible that my WiFi router being 5GHz could be causing some of my problems as well?

I could be be wrong but AFAIK the reference station doesn’t support 5GHz WiFi?

You should be OK if it is 2.4GHz and 5GHz mixed. The ESP32-WROOM only supports 2.4GHz:

Screenshot 2025-06-12 113452
This is what my WiFi setting says so I’m guessing this means its only 5GHz.

See if you can access you router’s settings and have it broadcast both bands if available…you also might be able to use a phone’s wifi in-between to add in a 2.4g transceiver, folks have had good luck using a $50 android go-phone as sort of a hotspot

If you have a spare Raspberry Pi laying around you could turn that into a 2.4GHz access point.

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