Building RTK GPS for £250

Short video showing my touchscreen GPS which is accurate to less than 10cm using RTK. Cost of this GPS system is only £250.

[@FarmTheoryNI]

Lots of changes since this, you can find my recent developments on tiktok. @farmtheoryni

[@AA-gl1dr]

Exactly what I’ve been looking for. Cheers mate. Thanks for the upload

[@aureliopds]

very interesting, hope to see more in a future

[@justinweston2353]

Very cool!

[@heikkianttila6296]

hi, Superb video and powerfull looking system. I operate a small farm in Finland and would need to update our guidance system - been also looking for a raspberry project to learn on so this seems super interesting. I couldn't find any links to resources and and RTK GPS gives far too many hits so any details on the software and the build hardware would be great. Maybe add to the description? Or maybe I am missing something obvious... wouldn't be the 1st time :D

[@kevsterking]

Lovely!

[@DylanHobbs1]

Just come across this lad, looks awesome, I’ll peek the TikTok, but I’d love to see you more active here! Understandably a lot of work for not much benefit though, either way thanks for the info!

[@FarmTheoryNI]

I do quite a bit on tiktok. I will eventually make a KZbin video again. 😂

[@wengliu2902]

hope to see the download URL of the documents or sources.

[@bubble6470]

Great vid, could you add links where to buy and download software please, will be really interested to see your autosteer

[@FarmTheoryNI]

Thanks. This is the third version of the software, its not quite at the stage of making it available, a few more months and i will have a finished version which i will be more than happy to make available for download.

[@francocoetzer311]

@@FarmTheoryNI please !!!!🐱‍🏍🐱‍🏍🐱‍🏍🐱‍🏍🐱‍🏍🐱‍🏍🐱‍🏍😁

[@earlaguiar6818]

hi @FarmTheory, great video! How accurate are the GPS readings?

[@FarmTheoryNI]

Very hard to be sure. Real time around 2cm, repeatability under 10cm.

[@jerryd0413]

Take a look at ardusimple rtk2b receiver. Very cheap for a dual band rtk system.

[@FarmTheoryNI]

It adds alot of cost going down that route, it's probably worth it and the zed-f9p module is something I will try at some point.

[@karlennis7974]

Hi there, am looking into building an rtk for setting ground control points for a drone. I’m based in Derry so only up the road from you. Would you be open to the idea of a visit just so can see the base station etc in more depth. Great job on what you’ve built!!

[@FarmTheoryNI]

Sure. Find me on Facebook and send me a message.

[@plexim1591]

Could you post links to the software and the parts?

[@alinbulboaca5679]

Hi , respect all your work . I am from Romania , recetly i bought from china an gps antena with bluetooth integrated . on the field accuracy is around 45 cm , is good but not enought , what do you think ? Is possible to connect at a base and get rtk signals ? Or how can we talk about this ?

[@dgb5820]

Great video can I know more please

[@FarmTheoryNI]

Of course. I assume you msgd on fb messenger

[@WA4OSH]

Andrew, how does your base station communicate with your rover? Is that over WiFi? LoRa?

[@FarmTheoryNI]

Ntrip using rtk2go.com. The tractor has a sim card.

[@vicfischer8760]

Hi Andrew I am interested in knowing more about your system

[@robertoclay5729]

a trick : you can watch movies on flixzone. Me and my gf have been using them for watching a lot of movies lately.

[@dangeloodin5501]

@Roberto Clay Yea, have been watching on Flixzone for since november myself :D

[@PilotOdyssey]

How is this project going are you ready to release the code yet?

[@tuanphan9710]

Can you share code for me? [e-mail]

[@rossclarke8028]

I have been using your base :) is it something you will be keeping permanently live? The enniskillen one probably a bit too far for me too.

[@rossclarke8028]

Also how do you find accuracy on slopes without roll correction?

[@FarmTheoryNI]

Yep. It will always be online. You notice the slopes for sure but I had issues correcting for it so I just leave it.

[@rossclarke8028]

hi did you take the base station offline? i cant for the life of me remember where it was hosted but guessing it was rtk2go? thanks @@FarmTheoryNI

[@rossclarke8028]

Nvm I found it again. Many thanks for keeping this up. A real service to the community 👍

[@experiencemartin]

Hey, just wondering what the name of the RTK GPS module is?

[@FarmTheoryNI]

NV08C-CSM is the one in the video.

[@waitongu]

I farm in Kenya and have been looking for this kind of solution, are you open to putting a kit together for me? I will of course compensate for parts and your time

[@PaddyK4]

Is there any way to make it more accurate than 10cm to suit ridging for potatoes?

[@FarmTheoryNI]

I theory yes. You would get 2cm pass to pass (i have no way of validating this) but I have found it difficult to get better than 10cm repeatability when getting my base stations position, although the reference basestation I was using was 30 miles away.

[@steveoldershaw996]

Hi have you got a picture or video of you base station and the parts used? Thanks

[@FarmTheoryNI]

Much more info on my tiktok. Its @farmtheoryni.