not really sure where to put this, so please direct me elsewhere is this is not a good fit for this question.
I am currently exploring car programming via the OBD2 port. I have been scouring the internet for a OBD2 solution that will allow me to read RAW CAN bus messaged from my car. So far I have not been able to find a software that lets me do this with a ELM327 adapter. Does anyone know if there is software available that can read these A.) with this adapter and B.) Actually show me RAW CAN messages?
So far I have only been able to see the OBD2 messages, but I would like to get under this layer. Any guidance here is greatly appreciated!
Thanks!
If your car is recent enough, you won't be able to get the "RAW CAN" traffic. Because behind the OBD port is a gateway that only relay SOME of the CAN messages.
You can still get those messages with your ELM but as this device is not made to be a CAN adaptator it can be tricky. You can find a lot of information here.
To get more information on what you can find on the CAN bus of the OBD port, you can read this article. It's a good way of having a first overview of the CAN bus in cars.
If you want to have access to the CAN traffic, you will have to do some soldering on your car's wires. Here is an article of what it can look like. WARNING : do not perform random stuff on your car, it can be as dangerous as expensive.
Related
I am trying to develop an Arduino sketch in order to send Temp-humi data from a dht11 sensor to KPN (Dutch) Network throughout a LoRa module (Dragino).
There are plenty of sketches around internet with similar function, but none of them has the right function I expect, since most of them ONLY send a simple 'Hello world' data throughout the ABP or OTAA Keys that the Network provides. In the other hand, I have also found sketches that ONLY makes the temp/humi functionality, withouth having the chance to write the Activation Keys.
So, I am actually trying to join these two codes with these functionalities (Request the Activation Keys to connect with KPN Network, as well as the sender sensor data), and it seems to compile properly, however, it is not sending any data, so probably the code is wrong.
May I get any link to the right one or any recommendation, please?
Many thanks in advance.
Project Code:
enter link description here
I have also had my problems with the Dragino shield and dht11 but i got it working.
My script: https://github.com/FelixKunz/LoraDraginoDHT
I would recommend you to use the RN2483. I've had rarely any troubles with this chip and it is not as expensive as the dragino shields.
en prettige dag
I am doing a research project about data leakage in probe requests. As in these probe requests it is possible to see some SSIDs, I was wandering if it could be possible to locate them. For example, if I see WLAN_C11G I would like to be capable of knowing the coordinates where this AP is.
I know that I could do my own database of scanned SSIDs. However, I would like to know if there is some public database where I can find some AP-SSID geolocations.
Thank you in advance
What you are describing is known as Wi-Fi Positioning. The information on actual databases in the Wikipedia article may be dated, though.
For years the big name in the field was Skyhook http://www.skyhookwireless.com/submit-access-point
A serious concern about privacy has been raised a number of years ago http://www.zdnet.com/article/mobile-privacy-flap-take-two-starring-google-skyhook-gps-act/
Google has a private database :)
How accurate do you need to be for your application? i.e. in metres?
Basically I need information on how to pull data from a flash game webbased client and put that data into an app. The game is evony.com its a webbased flash game. I can probably figure out the coding such as parse the login and password and display the information in the app. What Im have major problems is following,
How can I find out what data in what format is being transmitted from
webbased client to their server.
What software, preferably free, is out there that will do this for me?
Is there any tutorials, explanations, pointers anything describing this
on the inet because I have searched high and low without success.
I think the problem is because I am a beginner, I do not know the correct wording to serch for to find this information. It's a little like a needle in a haystack :) If you know what you want but dont know what it is called, get a new hobby :(
VERY much appreciated for any help, pointers, explanations, descriptions, tutorials or anything that can help me with this, very very much appreciated all.
/Core
The tool of choice to get started is WireShark. Its a software to monitor in- and outgoing datatransfer. It's very powerfull and a bit complex to get filtering right. Try something different to get started (e.g. do a ftp-login and try to "steal" your own password).
In Step two, you need to reverse engineer the communication between your client and the server. Thats the fun part. If it is encrypted, bad luck.
If you want to read the data, you can use libraries like LibCap to get the data in a language of choice. The flash player interacts with the game and you read the data transmitted.
If you are going for a stand alone program without the running flash client, you need to write your own client based on the protocol you got from step two. Be prepared to be kicked and banned permanently on the slightest error. I haven't checked on this one but every MMO I know and I can imagine do prohobit such tools.
I have seen a lot of questions related to obtaining a list of devices on the network and i'm not sure any of them meet my needs. I need to be able to show a list of devices connected to the network, with IP address/Mac address. I've seen ARP cache mentioned, as well as scanning a subnet mask, and ICMP broadcast. Which of these is the best way to get this functionality? I have concerns about some of the solutions I have seen posted, as most mention non-public API's it would seem. A point in the right direction would be greatly appreciated, I am also not highly familiar with straight C, which a lot of the mentioned solutions use.
Is it possible to get location data out of Google Gears, Google Gelocation API or any other web location API (such as Fire Eagle) in such a format that it appears to other software as a GPS device?
It occured to me reading these answers to my question regarding WiFi location finding, on Super User, that if I could emulate a GPS unit, many of these web services could act as a 'poor-mans' GPS to otherwise less useful software that requires it.
Is GPSD an option?
Preferably OSX & Python, but I would be interested in any implementation.
There is a very similar thread on a Python mailinglist that mentions Windows virtual COM ports and discusses Unix's pseudo-tty capabilities. If the app(s) you want to use let you type in a specific tty device file, this may be the easiest route. (Short of asking the authors to provide a plugin API for what you're trying to do, or buying yourself a $20 bluetooth GPS mouse.)
Are you using OS X?
There is a project macosxvirtualserialport on Google code that provides a graphical wrapper around some of the features of a utility called socat. I'd recommend taking a look at socat if you see potential in the pseudo-tty route. I believe you could use socat to link a pipe from a Python program to a pseudo-tty.
Most native Mac apps will be querying IOServiceMatching for a device with kIOSerialBSDRS232Type, and I doubt that a pseudo-tty will show up as an IOKit service.
In this case, unless you can find a project that has already implemented such a thing, you will need to implement a driver as described in this How to create virtual COM port thread. If you're going to the trouble of create a device driver, you would want to base it on IOKit because of that likely IOServiceMatching query. You can find the Apple16X50Serial project mentioned in that post at the top of Apple's open source code list (go to the main page and pick an older OS release if you want to target something pre-10.6).
If your app is most useful with realtime data (e.g. the RouteBuddy app mentioned in the Python mailinglist thread can log current positions) then you will want to fetch updates from your web sources (hopefully they support long-polling) and convert them to basic NMEA RMC sentences. You do not want to do this from inside your driver code. Instead, divide your work up into kernel-land and user-land pieces that can communicate, and put as little of the code as possible into the kernel part.
If you want to let apps both read and write to these web services, your best bet would probably be to simulate a Garmin device. Garmin has more-or-less documented their protocol in the IntfSpec.pdf file included with their Device Interface SDK. Again, you'd want to split as much as you could into user-space code.
I was unable to find a project or utility that implements the kernel side of an IOKit-based virtual serial interface, but I'd be surprised if there wasn't one hiding somewhere out there. Unfortunately, most of the answers I found to that question were like this, with the developer being told to get busy writing a kext.
I'm not exactly sure how to accomplish what you're asking, but I may be able to lend some insight as to how you might begin to get it done. So here goes:
A GPS device shows up to most systems as nothing more than a serial device -- a.k.a. a COM port if you're dealing with Windows, /dev/ttySx if you're in *nix. By definition, a serial port's specific duty is to stream data across a bus, one block at a time. So, it would then follow logically that if you want to emulate the presence of a GPS device, you should gather the data you're consuming and put it into a stream that somehow acts like an active serial port.
There are, however, some complications you might want to consider:
Most GPS devices don't just send out location data; there's also information on satellite locations, fix quality, bearing, and so on. Then again, nobody's made any rules saying you have to make all that data available. There's probably more to this, but I'll admit that I need to do more research in this area myself.
I'm not sure how fast you can receive data when dealing with Google Latitude, etc., but any delays in receiving would definitely result in visible pauses in your "serial port"'s data stream. Again, this may not be as big a complication as it seems, because GPS devices are known to "burst" data across the bus anyway, but I'd definitely keep an eye on that. You want to make sure there's always a surplus of data coming across, not a shortage.
Along the way you'll also have to transform the coordinates you receive into valid GPS sentences, as well. You can find specifications for those, but I would definitely make friends with the NMEA standard -- even though it is a flawed standard, it's the one everyone seems to agree on anyway.
Hope this helped you, at least a little bit. Are there anymore details specific to your problem that you think could be useful in answering this question?
Take a look to Franson GPS Gate which allows you to connect to Google Earth among other things (like simulating GPS and so on). Is windows only though but I think you could get some useful ideas from it.
I haven't looked into it very much, but have you considered using Skyhook's SDK? It might provide you with some of what you are looking for. It's available for every major desktop and mobile OS.