i am trying to learn how to setup a steering system
and am currently trying to determine what gps receiver to use
i have used trimble on a anti collision system but i was not the guy setting up programming so have little experience with that
i see on AgOpenGps that there is some details about trimble
but i also found some details on SparkFun RTK Surveyor gps unit, sounds interesting
found information on SparkFun GPS-RTK Dead Reckoning Breakout - ZED-F9R (Qwiic)
SparkFun GPS-RTK2 Board - ZED-F9P (Qwiic)
SparkFun GPS-RTK-SMA Breakout - ZED-F9P (Qwiic)
does anyone know suitability of these ?
do you need the dead reckoning features
i have to thank Farmer Brian and all others for putting the information forward to make my attempts here close to worthwhile
i know there is many hours of work to make this happen
I believe Trimble and other very expensive receivers are talked about when owners have commercial/OEM auto-steer kits and desperately try to make them work from a low cost base or something like that. Trimble, Topcon, JD and such are not really an option for a low cost DIY auto-steer kit (my opinion).
Are you searching for a base receiver when you refer to the SparkFun surveyor kit? I thought you were after a rover receiver where some SparkFun products seem to be popular but I’ve never seen the advantage over similar but less expensive Ardusimple products:
i seen some information that led me to believe the SparkFun surveyor unit would be able to be used for a steering system and also as a base station unit for more accuracy
do you know if this is correct?
it is more expensive , i will certainly look into the one you mentioned
Thanks for previous information
Ardusimple is interesting
Now to figure out which is best
Do you know of someone that uses cellular network to interface?
Was hoping to make it work using phone data plan instead of other radio modems
Might make simpler at first
Got hills and trees in way so line of sight maybe not achievable
Do you have opinion on this?
On my AgOpenGPS setup I use my cell phone for RTK correction data over NTRIP. On our commercial receivers I also use NTRIP with a dedicated SIM card. I pay 10 Euros per year for each. I would say cost is not an issue in either case.
Difficult for me to understand but some countries have poor cellular coverage and NTRIP may not be the best solution. I come from a very sparsely populated country and I cannot find a field with poor cellular coverage. Then again, some farmers from small and densely populated countries complain a lot. We have to understand that there is no single solution for everyone.
Sense high and low are used for a differential signal. If your WAS has only one output, you would find the correct input (out of the two) from the documents included in the support files. If I remember right, you would use the sense high input. The signal should be the voltage between WAS ground and the WAS signal output.
Remember to consider if you want the 90 degree or 180 degree version of the Piher. Most front wheels does not turn more than + - 40 degree, so to get maximum use of signal range (about 0,5v to 4,5V) a 90 degree version would fit best.(Digi-Key number 1993-1014-ND)