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I think there’s other reasons too! CAD, VisualLISP, have been around for more than a quarter century, AutoLISP, like 40 years, either people have moved on to other software packages, or use an already existing solution People at stack overflow started to complain about it being toxic, people downvote legitimate questions where the question was a bit hard to understand, i.e. where the OP’s first language isn’t English. I use the heck out of AI though; I even run local models. The issue is, people expect LLMs to “one shot” solutions, it’s unlikely to happen. If you spend time and find a system to work with the models, they are amazing.

Like @Steven P How do you look at the data now ? Is it just displayed when you run a program ? If so what is the program ? Some one must have written it.

I worry that information will become like entertainment. We used to have a few TV channels, they were free, and we trusted their information. Then came cable, which grew into a mess of garbage that came through one provider, so you paid for things you mostly didn't want. Then came streaming, which is turning into a handful of providers with even more garbage, and you pay for each provider. AI may turn out like that: a few providers, with answers of questionable quality, at prices we can't afford. What would make sense to me is to create repositories of knowledge, curated by an AI. As it is, you have to ask similar questions, and the AI starts from scratch every time. Wouldn't it make more sense to treat the AI like someone with institutional knowledge? If you had a repository for AutoLISP code, for instance, all of us could contribute to it and maintain it. You might have to pay for your answer, but you would know it was correct and useful.

Are you able to dive into Windows itself a little - been a while since I needed to do anything similar though so this might not be possible. Close everything and set the receiver going, record some data, say 5 mins or something. Windows of old let you search the whole system for every file... might be able to limit that to 'modified in last hour' (or whatever). This might bring up the saved data, might be able to open in notepad and see if it is encrypted / compressed (all the weird characters) or raw data. If is is raw data then you are away and running able to read and modify as you want. Think you would need to show hidden and system files to get the best chance of finding the data. Might work.

Some suggestions. Go back to who you bought the device from, they may have something. If it was say Amazon not sure. Look on the manufacturers web site for more info contact them. Brand, model etc ?

In real time? I think is saw one for like $300 will post later tonight. -edit I can't find it was like dtool or something

Yeah, my thought would be to use an external app to talk to the receiver, save the coordinates to a text file somewhere continuously - probably by overwriting a simple text file 'X-Coord Y-Coord Z-Coord Description' - same format all the time - all done outside of CAD. Have CAD running and using a delay (https://forums.autodesk.com/t5/visual-lisp-autolisp-and-general/using-delay-command-in-scripts/td-p/5497881 for an example) get CAD to read this file as necessary, plot the point

Your trying to talk to an external device, something that Autocad was never really designed to do out of the box.. Other than say a Digitiser. Yes in survey software including CIV3D there are programs that talk to survey instruments, but some one has writen say a .NET interface to do the talking part. So you need a external program Python may do it for you, Lisp is a pretty low level language when it comes to interfaces. You need functions that do that and they are probably not built into the Lisp interpreter. Bricscad has added lisp functions to its software they are not available to say Acad as improvements. In the case of mobile phone photos I used a 3rd part program to read the details from the jpg images so could get the lat and long and insert in a dwg at correct location. Using lisp could call the other external program. look at Startapp can call a bat file. "Need a thread" then why not talk to hand held distance measures, I am sure others would come up with other devices also that they would like plug and play.

I think you would need Python, .NET, or ObjectARX as Autolisp does not have an on idle event that I can see. According to AI, you can read the input stream in a background thread, then use AutoCAD’s on idle event to update geometry in AutoCAD. I asked AI about using PyRx and it spit out a bunch of code converting $GPGGA $GNGGA to Lat/Log and stuff, I attached it. scratch.txt

Like @mhupp may need to run an external program that writes current location to a file, then you can read that file and update say text. Depending on the program may run a BAT file or run the program or use powershell to run. I think can look at a file date has changed via reactor but manual much easier. I did a Google and did start to find hints of save to a txt or csv file but that is as far as I went. It is something you need to do, yje googling. Talk to who you bought the device from they may have something.

Would need a Reactor and connect to some type of database.

Not sure, can the GNSS write / overwrite or updated a text file continuously? Reading a text file is easy with CAD, copy that to a block and the rest is all possible - not sure the interface yet. BigAl might know something later today.