#3 How to get started with the u-blox C099-F9P application board (2/2)

[@dipankarmandal6716]

@ublox I am still not able to get RTK float/fix with rover-base wifi configuration. I would be very happy with the new video demonstrating the same.

[@Mrjaydesign]

Hi Robert, is it possible to connect a base and Rover together with Wi-Fi and connect the Rover to a app via Bluetooth, I would really appreciate any help thank you very much

[@ublox]

Hi James, Great question! Yes, this can be done, although this configuration is currently not available with the mbed evaluation FW. So to set this up the ODIN modules first need to be reprogrammed with the u-connectXpress firmware. Then the base and rover can be configured with AT commands (or via the s-center GUI). On the base you will need to set up a Wi-Fi Access Point with a TCP or UDP server. For an example of this, check out "Serial to Wi-Fi access point" in the u-connectXpress User Guide (UBX-16024251). On the rover you will need to set up a Wi-Fi Station and a TCP or UDP client connection. For an example of this, check out the "Serial to Wi-Fi Station" in the u-connectXpress User Guide. The Bluetooth server is enabled by default, so all you need to do is scan and connect from the PC. I recommend setting a unique Bluetooth Local Name so the rover is easily identified when scanning on the PC. After putting both ODIN modules into Data Mode, be sure to connect the OE3 jumpers (this connects the ODIN and ZED UARTs together). The one caveat with this setup is that each link is bi-directional, meaning that the rover's output data will be sent to the PC over Bluetooth but also back to the base over Wi-Fi. The base will ignore most messages, but take care not to poll rover configuration over Bluetooth as the response will also go to the base and reconfigure it.

[@pavanrshetty438]

Thank again for a good demonstration. It would be great to have a reference or a video in setting up correction services via NTRIP. I have been able to setup the Skylark correction service, but the raw correction files aren't available or recorded. It would be great to have any assistance here so that the correction files can be used for RTK post process (rtklib)

[@ublox]

Thanks for the suggestion! If you use a C099-F9P as a base you could record the RTCM corrections it generates. You might also be interested in the u-blox correction service PointPerfect: www.u-blox.com/en/product/pointperfect

[@RossMelbourne2007]

Thank you for this helpful video. I am seeing the same results you are in the video - both Base and Rover say 3D. It would be very helpful to see the Rover go into fixed or even float mode.

[@RossMelbourne2007]

I managed to get a Base and Rover setup working. There are two options for firmware for the C099. If you want to use a Base (reference) and Rover (two separate boards) where the base provides the corrections to the Rover then you need to change from the default firmware to the u-connectXpress. I used this manual: www.u-blox.com/sites/default/files/C099-F9P-AppBoard-ODIN-W2-uCX_UserGuide_%28UBX-18055649%29.pdf and watched and read the comments on this excellent video: deepsouthrobotics.com/2019/06/03/the-taming-of-the-u-blox-zed-f9p/#wired-3

[@ublox]

@@RossMelbourne2007 Thanks for the suggestions! We do plan to make another video showing the full setup with rover going into RTK mode. This can be done with the mbed firmware or the u-connectXpress firmware. I agree that article from deepsouthrobotics.com is a great reference!

[@Ricco4444]

@@ublox Hi, this is the same problem for me! I'm new in the RTK GPS and if you have time I would be very happy with the new video. Many Thanks

[@HeinrichSchewe]

@@ublox Do you still plan to make this full setup base/rover video. Would appreciate it!!

[@sarmadbaig7]

@@ublox Kindly upload this video. I am facing issues in going to RTK MODE over wifi. Looking forward to your reply.

[@isaacdiazpinedo8299]

Hi Robert, thanks for the explanatory video, it is possible to have more than one Rover connected via Wi-Fi and get the position of all of them into the Base messages?. Thank very much in advance.

[@kevinmba5115]

Great video thanks. Please can we connect the rover to SW Map Android phone to collect GIS Data ? After you have connected the base and rover.

[@panamera970]

Nice detailed video.

[@ublox]

Thank you!

[@Mrjaydesign]

It would be good to see you do something with the c099-f9p and the arduino pushbutton data collection

[@ublox]

Hi James, You could post your idea with all details on our forum: portal.u-blox.com/s/ Possibly we would use your idea as a topic for a future video

[@MMoreno123]

Does the product work for South America? And it can be used with android devices, thanks and regards.

[@jeetbiswas007]

Hi Robert, Previously, I was working with C94-M8P modules in base-rover pair mode. Now, I have one C099-F9P application board because it claims to go to RTK Fix faster and also when it is indoor. The problem of this module is that the Base Rover pairing happens over bluetooth or WiFi. Is there a way I can hack the board to use it with UHF link of C94-M8P module? Thanks.

[@yahyaaouledamer1466]

can I get the RTK corrections from the internet using the odin wifi module ?

[@truzzistefano61]

Hello, I would like use the board to bouild a rover to pick ground control point in photogrammetric surveys. I use a Android app BT connected with the board and with integrated ntrip service. I ask if it's mandatory load the script u-blox ODIN-W2 BT Rover.txt. Thanks

[@tomeco360]

HOLA, BUEN VIDEO QUIERO VER EL PROXIMO VIDEO BASE ROVER

[@ublox]

¡Gracias! Manténganse al tanto

[@harryman01]

Great, can we connect more than one rover to a base ? And what is the limit of rovers connecting to a base ? Second question, instead of WiFi can we use LoRa and all rovers using LoRa?

[@ublox]

Yes, however the mbed FW only supports one rover. For multiple rovers you would need to use u-connectXpress FW. The ODIN-W2 can connect to up to 7 devices. You can use a LoRa radio instead of the ODIN-W2 module - to do this you should disable the ODIN (install the SAFEBOOT jumper) and connect the ZED-F9P data signals to the LoRa radio via the C099-F9P header pins.

[@toeknitter]

What max distance would you expect the wifi to have?

[@Mrjaydesign]

I think it’s about 300 m

[@ublox]

Yes, the maximum Wi-Fi range for the ODIN-W260 module is around 300 meters.

[@AnupamBH]

how to record Raw GNSS UBX data in SD card

[@sarmadbaig7]

who the hell is going to tell me that how to configure them in RTK they do not operate in RTK mode by just connecting to each other and please make one software for all the things you guys have multiple types of software with multiple documentation I reckon why people are still using this shitty product now don't make video over how to use Odin to get RTK configuration we have figured it out on our own by going through at least 10 documents and 4 types of software