Database Users

G-Sensor emulated by camera

I thing that everybody wants to have a g-sensor in their mobile . I have one idea . Is there any chance to develop a driver or software that can emulate g-sensor by rear or front camera ? Camera can catch "move" maybe in the same way like a g-sensor... Please think about it ...

I believe it was at least done on the Kaiser. The only issue I can see [apart from shoddy accuracy!] is, imagine the battery life being eaten!
Still, I'd like to see it, because it's the only thing I really want on my KS20

Function can be assigned to a hardware button, so it will start only if you want and then safe your battery

Ive asked about this a couple time and really got no where. I do know that the instinct uses this feature for scrolling web pages up and down

EurEye said:
Function can be assigned to a hardware button, so it will start only if you want and then safe your battery
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Then why not have the hardware button rotate the screen?
I see your point. I'd prefer to just have it running in the background. Drop the accuracy of it, and we could keep battery drain to a minimum perhaps.

Girvo said:
Then why not have the hardware button rotate the screen?
I see your point. I'd prefer to just have it running in the background. Drop the accuracy of it, and we could keep battery drain to a minimum perhaps.
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that, and emulating the g-sensor would mean better games

...I didn't think of that. Good point

kidnamedAlbert said:
that, and emulating the g-sensor would mean better games
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No it wouldn't, because as others have said the accuracy would be horrible.

mattcoz said:
No it wouldn't, because as others have said the accuracy would be horrible.
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but im sure that the great devlopers here could probably makes work better.
it makes me feel so bad not having a g-sensor.
today my friend was playing pocketgravity and he tried making things move by tilting my phone and it made me realize i need me a g-sensor.

kidnamedAlbert said:
but im sure that the great devlopers here could probably makes work better.
it makes me feel so bad not having a g-sensor.
today my friend was playing pocketgravity and he tried making things move by tilting my phone and it made me realize i need me a g-sensor.
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Well, doesn't the game lack that feature or does it not need that implemented?

The thing is, there has to be a comprimise.
Get some serious accuracy, but to do that you'd need to sample a hell of a lot, thus killing battery life.
Or, sample less, less accuracy [but still good enough for screen rotation I'd wager], but less drain on your battery.

kareem9nba said:
Well, doesn't the game lack that feature or does it not need that implemented?
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nope, someone just implemented it because it sounded like a good idea.

Will never work
Cameras have been used in the past for robotics and simply didnt work since they dont understand depth very well

What about combining the Camera and letting it work with the Infrared on the device? I know not all phones support both, but for the ones that do, its a step in the right direction.

External gsensor
Lets go back to the year 2000 where everything was external. remember the external camera on the sony ericssons? lets get an external gsensor

Maybe build in the battery like the fibration in the old Nokia 5100!

This thing must be possible.
I remember the game for Nokia phones, where you were controlling the ball in the maze. It was controlled by camera but it behaves like a g-sensor.

i dont know if this has been done but when you think about it many questions come to mind. first n foremost is depth. the softwares going to sense motion by motion in pictures from the cam. now if you have a white wall sufficiently lit and you shake your phone in front of it, hows a camera gonna judge motion from it? second, imagine a dot on the wall. now if ur close to it, theres gonna be alot more "motion" for the cam than if ur far away. i dont know the technicalities of the concept and if these problems will exist in a potential implementation, but, building on problems like these, i dont think its feasible or useful.

I think the theory behind it is fairly simple (and using the camera as a game input works as in Fishopolis http://rivia.net/Fishopolis.aspx Works on the Wizard). Take a pic A from camera at time x then take pic B from camera at time x + interval y then compare the two pics (get list of positions of same objects from both pix). If the objects in pic A are to the left of the same objects in pic B then you're moving right, left otherwise and a similar calc to determine up and down.
I think it is (actually know evidenced by the game previously mentioned) very doable and should take just as much battery power as using the video camera except for the storage since only a few images would need to be kept in memory at any one time and nothing needs to be stored on "disk".
Some matrix transformations and linear algerbra should do the trick... I'm sure someone has already done this in some form or another by now... Guess I'll see what I can dig up on the old internet.

why doesnt someone just work on internal accelerometers rather then trying to use the camera?

Simulate G-Sensor using camera

Hi all, have somebody thought about simulating the accelerometer using the phone camera? It's possible?
I couldn't find anything about this, sorry, but i'd be really happy to know that there's someone coding something like this...
PS: sorry for my poor english

i dont see this happening at all... i mean a image is produced by using light... how would that information tell u which way or which angle the phone is on :S

CashMoney18 said:
i dont see this happening at all... i mean a image is produced by using light... how would that information tell u which way or which angle the phone is on :S
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Ok, but as the image moves the phone could know how am i moving it

Theoretically, it is possible. It would just be a huge battery sucker and not too accurate. I came across this game a long time ago, back when I still had my Titan (no accelerometer). It is called 3D Lawn Darts. It uses the camera to control your throws. Check it out:
http://www.brothersoft.com/3d-lawn-darts-for-pocket-pc-133547.html
dwizzy130

CashMoney18 said:
i dont see this happening at all... i mean a image is produced by using light... how would that information tell u which way or which angle the phone is on :S
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It could work but only in a room covered with reference points all over the walls and floors like they use in 3D capture! LOL
I think the phone proccessor would choke on the proccessing! lol

there's a free app (i think) called CCSnake. Search for it. If you can't find it. Then search for Camera Controlled Snake. I tried it but the controls are not that good.

Asphyx said:
It could work but only in a room covered with reference points all over the walls and floors like they use in 3D capture! LOL
I think the phone proccessor would choke on the proccessing! lol
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well not really.
Camera take as picture, then asks the user to set a referance point. somthing that stands out. It takes detaisl of that area (color shape, etc)
all further images are taken and referanced to that point. and the program then knows which way the PPC was turned. if you want rotaion then you just need two points.
For all movements just 3 referance points are needed.
This is very basic movemnets and your limited to the area you are in as the camera must see the original points. but it would work.

i saerched for this a long time and tought: maybe you can do it with an other part of the phone.
or maybe you can make a program to use this as a normal g-sensor with new accelerometer software.
erik

There was a game that I had on my old Motorola E815 that did just this. I think it was like a marble tilt game...it worked fairly well as long as you didn't move too fast and it wasn't too dark (or light for that matter, as the camera on the E815 was really mediocre).

[Q] Flashlight-App for dual-LED (ultra-bright mode!)

Hi there...
I am searching for hours now...
I want a Flashlight-App that uses the "ultra bright" mode..
all apps I found only were "medium bright"...
if you ever used a Flashlight-App on HD2 on Windows-Mobile, you should know, what I am talking about.
Only App I found was nexus-one-torch.
I think it "takes photos" to make the dual-LEDs go maximum brightness, but the disadvantage is: it flickeres alot..
Anyone knows a Flashlight-App that uses maximum brightness of the dual-LED-Flash on the HD2 with Android?
Thank you!!
Greetings from Germany!

I like Tesla led. it seems pretty good...

But Tesla LED is not as bright as Windows-Mobile or "Nexus One Torch".
It does not utilize the maximum led-brightness. :/

Why would you need the Max LED flashlight?
Are you gonna setup a party xD!
I think that.. its useless.. the "one" (referred to the settings/drivers) we got now is awesome.. i can clearly see everything in my room when the lights are off.

Because the device is capable of such a brightness..
aaaand...
BECAUSE ITS COOL!

and you risk damaging your led lights...

burpingboy said:
and you risk damaging your led lights...
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I ve runner N1 torch with High brightness for 40 minutes without any problem!

I to want to find an app like this, I miss the torch from WinMo.

burpingboy said:
and you risk damaging your led lights...
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Uhm.. NO? Windows Mobile runs the maximum brightness with the standart HTC-Flashlight-App.. so definately: no!
=> Still searching an app!

have anybody found app? i also searched it for ages ....

Kralle said:
Uhm.. NO? Windows Mobile runs the maximum brightness with the standart HTC-Flashlight-App.. so definately: no!
=> Still searching an app!
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asphaltkiller said:
I ve runner N1 torch with High brightness for 40 minutes without any problem!
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Click to collapse
You risk destroying the LED's, they will burn out.
It doesn't matter what your own personal experiences are, they will break. Think of it like staring into a laser and not seeing instant visual disruption. It'll happen, just give it time and it'll mess things up.

dkl_uk said:
You risk destroying the LED's, they will burn out.
It doesn't matter what your own personal experiences are, they will break. Think of it like staring into a laser and not seeing instant visual disruption. It'll happen, just give it time and it'll mess things up.
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Everything breaks eventually my friend. I admit it may shorten the leds life span but some might not care because they wont use their phone for years and years. I personally have been using high mode on my nexus one for over a year and its still going

If you need something brighter than tesla, wouldn't it make sense to just use a maglite? Phones are great for minor conveniences, but just like the cameras, if i wanted top quality photos, i'd buy a digital camera not try to squeeze quality out of an inferior cel phone cam. Same with the flashlight, great if u drop ur keys at night, not so much if you're trying to light up your whole backyard or something.
-HD2 Android-

i dont think the torch app really uses the brightest setting.
i think its a matter of being properly programmed/optimized for hd2.

You could try Mag Flashlight, it has two brightness levels, but I'm not sure if it can use dual LED

yeah i remember the stock Hd2 flashight was WAY brighter, it puts the ones on android to shame, i want it back!

Yes, I've downloaded all available flashlight apps on the android market for my htc hd2, and NONE of them have matched to the htc hd2's windows mobile version. That particular version had 3 settings, low medium and high. All of the android flashlight apps seem to match the MEDIUM setting that the windowsmobile version was able to output.
Can someone port or write an android app that's nearly identical to the stock htc hd2's flashlight app that had 3 settings, without the annoying 5 second demo animation at the beginning on how to use it? That third setting (high) was KILLER, and impressed all of my friends as to the htc hd2's dual led true potential!

Same here, anyone have found any program with full bright?

HERE IT IS! (well i think its it. IDK)
okay so i pulled this off my typhoon CM7. its the "Torch" app. it has a high brightness setting as well as a strobe feature. (i have my mini raves XD)
its in apk format.
put it in sdcard, use a file explorer to locate it and install it. it should work.
btw i forgot. if it works hit the thanks button have a good day.

Unfortunately, like everyone is saying even the one that you pulled from the typhoon (althought it says it is the highest possible setting) is not the brightest setting that WM was able to achieve. Anyone else still looking for this like me? If someone who knows what they are doing could do this, it would be awesome!
For those that don't understand why we want this, you haven't used the WM LED flashlight long enought. I actually have great stories that goes along with the brightness of HD2 flashlight in WM (from everyone envying me at concerts to saving a bunch of us in the middle of the woods after the sun went down in the middle of a hike that went wrong =P).

[Request] [Stronger HTC Flashlight like on WM]

Hey, ever since i moved from winmo to android, and now from android to wp7, i've always missed something from wm. That is, the flashlight. It seems the flashlights on both Android and WP7, don't use the full capacity of the leds. What i'm saying is that they're very, very weak compared to the WM one. I don't know if it could be possible to make an application that takes more advantage of the dual leds' capacity. If someone can, please do, cuz' that was one of the amazing things of the hd2.

Hellow
download link.http://rapidshare.com/files/446892862/Flashlight.xap

m_yousufi said:
Hellow
download link.http://rapidshare.com/files/446892862/Flashlight.xap
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Click to collapse
Thank you, but:
It's the same as the one I've got, the purpose of this thread is seeing if anyone can make a flashlight that uses the full capacity of the leds, like on winmo, because, if you compare, winmo's flashlight is much much brighter.

hmmm i never experienced this.. Torch and TeslaLED both use the LED at an insane level of brightness. when you turn on super light in Torch it gets ridiculous! and i think the WP7 HTC Flashlight app from the HTC HUB is identical to the brightness of the WM6.5 one. i haven't done extensive testing, but i have never experienced any real differences. one click is still nice and illuminated where as the three clicks on and that sucker is bright

kkmmnn said:
hmmm i never experienced this.. Torch and TeslaLED both use the LED at an insane level of brightness. when you turn on super light in Torch it gets ridiculous! and i think the WP7 HTC Flashlight app from the HTC HUB is identical to the brightness of the WM6.5 one. i haven't done extensive testing, but i have never experienced any real differences. one click is still nice and illuminated where as the three clicks on and that sucker is bright
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I don't like the way you have to click through all the levels of brightness to get back to off with the wp7 flashlight. It would be better if you could set which brightness, then just push once for on and push again for off... not having to push to turn on, then push 3 more times to get it off, going through every level of brightness. What were they thinking when they designed that app? Am I missing some way to operate it differently?

dunno old boy but i only get 1 and bit of the LEDs light up, the bottom one comes on but barely.
Camera flash works fine however

Yeah exactly, its as if it used only one of the leds instead of the two
On winmo it was SO bright it was blinding.
On Android its brighter than WP7 but less than winmo.
Sent from my WP7 HD2 using Board Express

bump
10char

yes it is avaiable and free one one of the threads in HD2 running Windows 7, I have it working great. If I find the thread Ill post it.

[Q] Light on buttons

Is it possbile to do some reg tweaks to get the lights on the buttons working? The lights only come on when I press them...

When else would you want/need them to come on? Surely having them lit all the time would make battery drain even more of an issue than it currently is.

Beany69 said:
When else would you want/need them to come on?
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when its dark

Beany69 said:
When else would you want/need them to come on? Surely having them lit all the time would make battery drain even more of an issue than it currently is.
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In the dark for example... I can't, like alle other humans, see very good when it's dark....

yes but your phone doesnt know when its dark and you want the lighs on and when its in your pocket or draw, battery drain would not be helped obviously but i doubt it would make a huge difference

dazza9075 said:
yes but your phone doesnt know when its dark and you want the lighs on and when its in your pocket or draw, battery drain would not be helped obviously but i doubt it would make a huge difference
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It's pretty normal that the lights on the buttons of your phone are on when you use it, that's what I want, but if it's not possible so be it...

Beany69 said:
When else would you want/need them to come on? Surely having them lit all the time would make battery drain even more of an issue than it currently is.
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They should be on whenever the screen is on, surely. Having them only on while you're actually pressing a button is, of course, pretty useless. From what I've read, this is a known issue with the current HD2 WP7 ROM, right?
Dingo

DingoJunior said:
They should be on whenever the screen is on, surely. Having them only on while you're actually pressing a button is, of course, pretty useless. From what I've read, this is a known issue with the current HD2 WP7 ROM, right?
Dingo
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True that! I think it is a known issue, but when I was searching for threads in the forum I couldn't find any... Hope there will be a solution for this sometime in future ROM releases

mrventura said:
True that! I think it is a known issue, but when I was searching for threads in the forum I couldn't find any... Hope there will be a solution for this sometime in future ROM releases
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Yes, people, this is a known issue. On HD7, for exemple, when you press a button, the light remains for 10 seconds. On WinMo 6.5 and Android for HD2 this also happens, but not on WP7... I'm not sure if it will be fixed, as well with the camera, in future releases, just because of the drivers... but we can wait to see it

Idhor Naergon said:
Yes, people, this is a known issue. On HD7, for exemple, when you press a button, the light remains for 10 seconds. On WinMo 6.5 and Android for HD2 this also happens, but not on WP7... I'm not sure if it will be fixed, as well with the camera, in future releases, just because of the drivers... but we can wait to see it
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Click to collapse
agreed, personally i doubt very much that any of the hardware "bugs" the HD2 running WP7 has will ever be fixed, but at the very least my HD2 has given me the option to try many different OSs, i now know what i want on a future phone, and since the issues dont really bother me too much ill stick with the HD2 until there is a new "king of phones" available.