MAP THIS! version 0.461S (beta) with support for PSP-290 GPS accessory

[califrag]

Im not sure if you have answered this already or not, so i'm going to bother you just in case...
I know the memory is pretty limited already in the psp, but would it be possible to have a "wardriving" application running in the background during mapThis so when you are near an access point it will show as a POI on the map? I have been working with the sdk trying to develop a similar application but am at the very starting point. I am wondering if you have thought about this and whether it may be on the to-do list or not. Thanks for your time in answering this

[deniska]

Im not sure if you have answered this already or not, so i'm going to bother you just in case...
I know the memory is pretty limited already in the psp, but would it be possible to have a "wardriving" application running in the background during mapThis so when you are near an access point it will show as a POI on the map? I have been working with the sdk trying to develop a similar application but am at the very starting point. I am wondering if you have thought about this and whether it may be on the to-do list or not. Thanks for your time in answering this

This should be an easy thing to implement, provided that you know how to detect hotspots using PSPSDK API...
MapThis provides API for quering current gps coordinates as well as adding a new POI, so the coding should be farely straight forward... but..
not sure if this "feature" should be implemented in mapthis.. perhaps, it would make sence to make it as a separate application. You can add this to my "green-screen" proggies and have them to generate the POI file for later import in mapThis...

[Mystheryman]

Sounds really interesting =)

[gio25]

Hi, i have recieve the gps, install map this!, install the gps test, but I have 2 problems:

1. The gps test says that my logitude is -66.12412 (Wich i think is good because I live in Puerto Rico and we are at west from the meridian i think)
2. The map this program when finally recieve the signal says that the logitude is 348.something, and the program warns me that I am out of range

I have no idea where to find the usbgps.prx form the maplus software as is said in the readme so i use the 2.71 file, finally I have 3.02OE installed but i don't think that is the problem. I someone can tell me where to find that dam prx I'll be very happy.

[califrag]

This should be an easy thing to implement, provided that you know how to detect hotspots using PSPSDK API...
MapThis provides API for quering current gps coordinates as well as adding a new POI, so the coding should be farely straight forward... but..
not sure if this "feature" should be implemented in mapthis.. perhaps, it would make sence to make it as a separate application. You can add this to my "green-screen" proggies and have them to generate the POI file for later import in mapThis...

Hi deniska.
I have been working with the samples from the psp sdk to understand the functions for scanning for hotspots on-the-fly.

There was one other wifi sniffing program called "wifi sniffer" by jylam but he never released the source. So I looked into the sdk which provided the samples which were easy to understand and use.

I will look into the green screen program source to see how to query gps coords and perhaps add them to the project that i am currently working on.

What i am looking to do is release several "versions":

a) VSH PRX (for XMB):
-Log hotspots to POI file.
-Simple "hotspot radar" using gps scanning to show real-time hotspot locations on-screen.
-Hotspot information color coded
--protected: square
--unprotected: circle
--strong signal: green
--ok signal: yellow
--weak signal: red

b) EBOOT Application:
-Wifi hotspot POI file management
-Enhanced "hotspot radar" using gps scanning to show real-time hotspot locations
-Hotspot information displayed including strength, protection, SSID, etc.

(mockup)

c) Incorporate directly into mapThis:
If wifi scan is enabled, it will display new wireless points in real-time on the map.

The idea is to use the change in signal strength, the direction travelling, and the speed from GPS to approximate the location of wireless hotspots and display them on the map.

Then if certain criteria specified by the user are met, it will add the hotspot to the list of permanent POIs to display.
For example, user can configure to add hotspots if signal strength is weak (25%), ok (50%), strong (75%), or if hotspot is protected/not protected. etc.

By displaying the hotspot approximation "real-time" on the map, it will be easier to navigate closer to the hotspot: resulting in better signals and POI gps coordinates.

If you would like, I can create a post in the new code submissions, and post the basic structure needed to load the network modules, scan for access points, and print the information to the screen. I'm not sure i would be able to implement it into mapThis to do a test build though, and i would probably need help figuring out how to do the approximation formulas.

whew!
sorry for the length of this post, please let me know your thoughts!

[taspankya]

califrag and deniska, just my 2 cents: i think that claifrag's idea would be a great thing to add on to MapThis!. i was just looking into purchasing one of those wifi key chain meters that shows you how strong ssid is in the area, but it was 20 dollars and sure as hell doesn't tell you which direction to go for a stronger signal. the concept you have is very good. you will be able to see the location of the hotspot relative to your gps coordinates. very intriguing, and very complicated

[califrag]

taspankya, in the meantime i suggest you visit jylam's webpage:

http://jylam.info/psp/

you can download his v0.2 of wifi sniffer which will turn your psp into the wifi key chain meter... with a little bit more info.. it doesn't exactly tell you where to go, but will tell you how many access points are available, if any.

[deniska]

Hi, i have recieve the gps, install map this!, install the gps test, but I have 2 problems:

1. The gps test says that my logitude is -66.12412 (Wich i think is good because I live in Puerto Rico and we are at west from the meridian i think)
2. The map this program when finally recieve the signal says that the logitude is 348.something, and the program warns me that I am out of range

I have no idea where to find the usbgps.prx form the maplus software as is said in the readme so i use the 2.71 file, finally I have 3.02OE installed but i don't think that is the problem. I someone can tell me where to find that dam prx I'll be very happy.

Use 3.xx prx files... I believe the FAQ in discussion has info on how to extract them...
2.71 usbgps.prx has a bug displaying negative lat/lon value correctly. This bug would not be noticed in Japan though, since both lat/lon values are positive there...and they rolled the gps accessory for japan only... ;-)

[deniska]

@califrag:
I am not sure if you can implement a directional radar, type of gui - you really need to triangulate the signal from at least 3 different sources for that...
comparing the signal streingth from 3 different locations with one device will not be accurate since the signal streingth may change with time. Also the accuracy will greatly depend on the traveling path...
The easier solution is to implement signal streingth threshold event. (if signal level reaches 75% - grep the coordinates and add to POI list)

My only concern is that all modules required work network scanning and gps navigation can fit in to memory at the same time...

[califrag]

deniska thank you for such a quick response. i agree with your statement about triangulating the signal to implement the directional radar. maybe they are illusions of grandeur. my concern too is with the memory constraints of the psp and whether i will be able to poll gps data and wifi data at the same time. i will let you know after experimenting with greenscreen program source. thanks!