Go Back   Android Forums > Android Phones > HTC EVO 4G

test: Reply
 
LinkBack Thread Tools
Old June 27th, 2010, 06:03 AM   #51 (permalink)
Check six!
 
Slug's Avatar
 
Join Date: Aug 2009
Location: Inverness, UK
Gender: Male
Posts: 17,879
 
Device(s): Sony Xperia Z
Carrier: EE

Thanks: 2,742
Thanked 11,341 Times in 5,754 Posts
Send a message via Skype™ to Slug slugbrem@gmail.com
Default

Quote:
Originally Posted by reemas View Post
i'm not a mod, so I'm not warning you
I, otoh am, and I'm warning ALL of you.... cut it out!

Registered members are free to post in any forum, subject to the Rules. Ownership of a particular device is not a prerequisite.

Advertisements
Slug is offline  
Reply With Quote
The Following 2 Users Say Thank You to Slug For This Useful Post:
IOWA (June 27th, 2010), reemas (June 27th, 2010)
sponsored links
Old June 27th, 2010, 08:23 AM   #52 (permalink)
Senior Member
 
Rob_A's Avatar
 
Join Date: May 2010
Location: New York
Posts: 835
 
Device(s): HTC EVO 4G, HTC EVO Shift 4G, HTC Rezound
Carrier: Not Provided

Thanks: 123
Thanked 220 Times in 110 Posts
Default

looks exactly how the accelerometer works
Rob_A is offline  
Reply With Quote
Old June 27th, 2010, 08:26 AM   #53 (permalink)
Mr. Logic Pants
 
IOWA's Avatar
 
Join Date: Dec 2009
Location: Chicago
Posts: 8,832
 
Device(s): GS5 GS4 TF101 GS3
Carrier: Sprint

Thanks: 1,897
Thanked 2,346 Times in 1,211 Posts
Ask and ye shall receive!
Default

Quote:
Originally Posted by Rob_A View Post
looks exactly how the accelerometer works
That's what I'm sayin' lol. It's a gimmicky thing. But I guess now we're going to have to sqeeze and accelerometer, gyroscope, compass, gps, and heat seeking radar missles to phones now.
__________________
Useful links: The Rules | The Team | FAQ | Unanswered Threads |
IOWA is offline  
Reply With Quote
Old June 27th, 2010, 09:20 AM   #54 (permalink)
Member
 
Join Date: May 2010
Posts: 128
 
Device(s):
Carrier: Not Provided

Thanks: 39
Thanked 34 Times in 17 Posts
Default

Quote:
Originally Posted by IOWA View Post
That's what I'm sayin' lol. It's a gimmicky thing. But I guess now we're going to have to sqeeze and accelerometer, gyroscope, compass, gps, and heat seeking radar missles to phones now.
It's not easy to explain but basically, a gyroscope is much more accurate because it detects your rotational movements instantaneously and accurately.

An accelerometer does the same thing, however, with one major exception. I'll give an example to explain. Imagine you are standing still and using an app that is using the gyroscope/accelerometer. If you suddenly start walking your rotational movements will be incorrectly processed.

Maybe not the best example, but the precision of the accelerormeter is compromised by gravity, unlike the gyroscope.

Finally, there is a reason helicopters use gyros and not accelerometers, because they need that much instantaneous precision.
reemas is offline  
Reply With Quote
Old June 27th, 2010, 12:04 PM   #55 (permalink)
New Member
 
Defiant's Avatar
 
Join Date: Nov 2009
Posts: 4
 
Device(s): Sprint HTC Hero
Carrier: Not Provided

Thanks: 5
Thanked 0 Times in 0 Posts
Default

so, the gyros would help non-game programs like Layers, Google Maps streetview and Google Googles. You would get a more precise veiw and tracking with Gyroscopes.

my question is running those gyros must have some battery costs. how much more power do they suck compared to accelerometers?
Defiant is offline  
Reply With Quote
Old June 27th, 2010, 12:16 PM   #56 (permalink)
Member
 
Join Date: May 2010
Posts: 128
 
Device(s):
Carrier: Not Provided

Thanks: 39
Thanked 34 Times in 17 Posts
Default

Quote:
Originally Posted by Defiant View Post
my question is running those gyros must have some battery costs. how much more power do they suck compared to accelerometers?
great question. but apparently power management isn't android's forte.... YET.
reemas is offline  
Reply With Quote
Old June 27th, 2010, 12:27 PM   #57 (permalink)
Senior Member
 
Join Date: Mar 2010
Posts: 588
 
Device(s): Samsung Galaxy S2 (Sprint), Verizon Galaxy Nexus
Carrier: Not Provided

Thanks: 269
Thanked 64 Times in 48 Posts
Default

Very nice.
VGPOP is offline  
Reply With Quote
Old June 27th, 2010, 12:30 PM   #58 (permalink)
Senior Member
 
RoboMonkey's Avatar
 
Join Date: May 2010
Posts: 1,194
 
Device(s): Htc Vivid, LG Nitro HD, Epic 4g, HTC Evo 4G, LG Optimus V
Carrier: Not Provided

Thanks: 138
Thanked 115 Times in 89 Posts
Default

I want it.

One question, since the phone has a built in compass, can game developers take advantage of that and give us the same functionality?

I mean in google maps reality view all I have to do is move the phone up, down, left, and right and the screen turns.
RoboMonkey is offline  
Reply With Quote
Old June 27th, 2010, 12:34 PM   #59 (permalink)
Member
 
Join Date: May 2010
Posts: 128
 
Device(s):
Carrier: Not Provided

Thanks: 39
Thanked 34 Times in 17 Posts
Default

Quote:
Originally Posted by RoboMonkey View Post
I want it.

One question, since the phone has a built in compass, can game developers take advantage of that and give us the same functionality?

I mean in google maps reality view all I have to do is move the phone up, down, left, and right and the screen turns.
Definitely something android can take advantage of, but if sensitivity and response is crucial, it won't be as good as a gyroscope. For example, when using Layar or Google Sky, there is a slight lag. Nothing worth complaining about but something to notice.

Now imagine if it was almost as fluid and realtime as your hands movements. That would be a gyroscope.

For what it's worth though, until developers tap into this, don't expect it to show up elsewhere as its really raw and unpolished right now aside from the game demoed by the OP.
reemas is offline  
Reply With Quote
Old June 27th, 2010, 03:15 PM   #60 (permalink)
Junior Member
 
Join Date: May 2010
Posts: 61
 
Device(s):
Carrier: Not Provided

Thanks: 0
Thanked 15 Times in 7 Posts
Default

I was out camping this weekend, and downloaded a level app. Dl took 5 seconds, and i used it to level out my camp trailer. EVO might not be best in games, but it leveled out my trailer so i wasn't leaning as i walked in the trailer.
vtwin-racing is offline  
Reply With Quote
sponsored links
Old June 27th, 2010, 04:49 PM   #61 (permalink)
Junior Member
 
Join Date: May 2010
Posts: 36
 
Device(s):
Carrier: Not Provided

Thanks: 23
Thanked 14 Times in 8 Posts
Default

Quote:
Originally Posted by eshy View Post
I don't expect my Evo, or any of the smartphones I had before, to do a better job then dedicated devices. My DSLR will always take much much better pictures than any phone on the market ever will. A dedicated gaming console will always have a better game experience.

Smartphones were never about taking pictures and playing games, what's smart abour playing games?
It was always about being able to access information, like email and internet, and run different applications that are useful when you're out and about.
The only thing games on a phone are good for is draining battery.

Apple made it clear they see the iphone as a competitor in the mobile gaming arena. So they put emphasis on that (and completly ignored having decent reception so you can make calls while holding the phone in your hands...)
Who said smart phones were never about taking pictures and playing games? This is considered multi-tasking.
Sounds to me like Windows Mobile is for you.

Do you carry your DSLR camera every where you go? I don't, but my phone I do. And I love the camera on the Evo.

As far as games go, I'm not a mobile game kind of person. But that doesn't mean I wouldn't play them if I'm waiting around some where. Or that doesn't mean that I can't let my nieces play games on my phone when we are out and about somewhere.

Its personal preference. But to say phones are not made to play games, that logic is seriously flawed. Even regular phones came with games and a camera!
champ051005 is offline  
Reply With Quote
Old June 27th, 2010, 05:06 PM   #62 (permalink)
Senior Member
 
raqball's Avatar
 
Join Date: Jun 2010
Posts: 523
 
Device(s): Samsung Epic 4G Touch
Carrier: Not Provided

Thanks: 70
Thanked 155 Times in 59 Posts
Default

I think it a gimmick only useable for teenagers who like to play games on their device.....
raqball is offline  
Reply With Quote
Old June 27th, 2010, 05:08 PM   #63 (permalink)
Member
 
Join Date: May 2010
Posts: 128
 
Device(s):
Carrier: Not Provided

Thanks: 39
Thanked 34 Times in 17 Posts
Default

Quote:
Originally Posted by raqball View Post
I think it a gimmick only useable for teenagers who like to play games on their device.....
if that was sarcasm, it was pretty good!
reemas is offline  
Reply With Quote
Old June 27th, 2010, 05:16 PM   #64 (permalink)
Junior Member
 
Join Date: Jun 2010
Posts: 83
 
Device(s):
Carrier: Not Provided

Thanks: 20
Thanked 24 Times in 13 Posts
Default

Some people really have a hard time giving the iPhone props when props are due.
bamaster is offline  
Reply With Quote
Old June 27th, 2010, 05:28 PM   #65 (permalink)
Member
 
Join Date: May 2010
Posts: 267
 
Device(s): Samsung Captivate (Galaxy S)
Carrier: Not Provided

Thanks: 10
Thanked 31 Times in 25 Posts
Default

Quote:
Originally Posted by bamaster View Post
Some people really have a hard time giving the iPhone props when props are due.
Very much so. In a couple years when all phones have gyroscopes, the same guys calling it a gimmick will see it as a must have feature.

FWIW, the Samsung Galaxy S (Android 2.1) has a 6-axis gyroscope as well.
__________________
http://emuneee.com

Look at the latest Gingerbread leak for the Captivate
http://emuneee.com/2011/08/quick-look-at-gingerbread-for-the-captivate-deja-vu-edition/
emuneee is offline  
Reply With Quote
Old June 27th, 2010, 05:32 PM   #66 (permalink)
Member
 
Join Date: May 2010
Posts: 128
 
Device(s):
Carrier: Not Provided

Thanks: 39
Thanked 34 Times in 17 Posts
Default

Quote:
Originally Posted by emuneee View Post
In a couple years when all phones have gyroscopes, the same guys calling it a gimmick will see it as a must have feature.
I was going to say this earlier, but I think some on this forum are too defensive.

Are you sure it's a 6-axis gyroscope on the Galaxy S? Or is it a 3 axis but when combined with an accelerometer it becomes 6 - like the iPhone.
reemas is offline  
Reply With Quote
Old June 28th, 2010, 12:36 AM   #67 (permalink)
Mr. Logic Pants
 
IOWA's Avatar
 
Join Date: Dec 2009
Location: Chicago
Posts: 8,832
 
Device(s): GS5 GS4 TF101 GS3
Carrier: Sprint

Thanks: 1,897
Thanked 2,346 Times in 1,211 Posts
Ask and ye shall receive!
Default

I say show me some real world use out of it, productivity wise that my moment can't accomplish, then I'll be impressed. Until then, it's a gimmick.
IOWA is offline  
Reply With Quote
Old June 28th, 2010, 02:53 AM   #68 (permalink)
Bnice
Guest
 
Posts: n/a
 
Device(s):
Carrier: Not Provided

Default

Quote:
Originally Posted by bamaster View Post
Some people really have a hard time giving the iPhone props when props are due.
I think a lot of folks think the iphone is a good device just not as superior like they hype it up to be,many phones before it and present can have the same features maybe implemented differently but they don't get the same props as the iphone.I hear many saying the EVO screen is to big but wait till apple go to a 4 inch screen then its ok.
 
Reply With Quote
Old June 28th, 2010, 04:19 AM   #69 (permalink)
acp
Senior Member
 
acp's Avatar
 
Join Date: Nov 2009
Posts: 996
 
Device(s):
Carrier: Not Provided

Thanks: 83
Thanked 71 Times in 56 Posts
Default

just like it is trendy to own an iPhone it is trendy to hate on the iPhone... I've also noticed a trend lately (or maybe it is the same person) in this forum to preach about using other devices such as the PSP for gaming, why would you ever hate on technological advancements, just because phones are not as powerful with gaming yet does not mean they wont be in the future, it's a process so hang up that Captain Obvious cape.
acp is offline  
Reply With Quote
The Following User Says Thank You to acp For This Useful Post:
MrX8503 (June 28th, 2010)
Old June 28th, 2010, 10:03 AM   #70 (permalink)
Junior Member
 
1Paladin's Avatar
 
Join Date: Apr 2010
Posts: 33
 
Device(s):
Carrier: Not Provided

Thanks: 0
Thanked 1 Time in 1 Post
Default

I think it is cool to have it and we will all taunt how cool it is once we start getting them on our phones. ii

It will probably take a year or so for us to catch up on that one software wise. The apple developers will be all over that and within a few months all their apps that can use it will be supported. You got to hand it to Apple on that front.

With Android being first in a lot of things, why did we miss that one. ii

With that all said most applications don't really need it. I guess it would make Google Sky a bit more smooth but hell man, it is GREAT as is....
__________________
Systems Analyst by trade, Drummer by desire and Music Lover by birth. A self proclaimed Geek and gadget nut. ii


1Paladin is offline  
Reply With Quote
sponsored links
Old June 28th, 2010, 10:23 AM   #71 (permalink)
Member
 
Join Date: May 2010
Posts: 405
 
Device(s):
Carrier: Not Provided

Thanks: 32
Thanked 53 Times in 39 Posts
Default

All phones have its advantages and disadvantages, but its become trendy to hate the iPhone it seems.

Look over at the EVO vs iPhone camera thread, its pages long. Even when there is video proof people still argue. Accept your phone for what it is and give props to phones that does something well.

Also all the excuses "Why would I need that in a phone, when I have my so and so for that?" are lame. I could easily say, why would I need a crappy browser on my phone when I have my laptop.

People need to really wake up and look at technological advancements. Anand stated himself that the future is everything smaller and faster. We can't be hung up on, "well I have this for that" if we want any kind of tech advancement.

Now get off my lawn! lol
MrX8503 is offline  
Reply With Quote
Old June 28th, 2010, 11:14 AM   #72 (permalink)
Junior Member
 
Join Date: Jun 2010
Posts: 83
 
Device(s):
Carrier: Not Provided

Thanks: 20
Thanked 24 Times in 13 Posts
Default

If there is one thing that the iPhone has better than pretty much any phone, is its polished interface. There's not a icon or menu that isn't thought through. Once you know how to go through menus in one of the native apps, you know how to use all of them.

Android Sense UI has a long way to go before it can get there. Some things are labeled "Options" some are "Settings". Sometimes you can use the menu button to get to them, sometimes you need to go into the Settings apps.

I read someone say that they liked this part of Android because it's for technical people and not for soccer moms. Really?

I love my Evo and I can never go back to a sub-4" screen again. But Android is playing catch up with the Apple interface and usability gurus.
bamaster is offline  
Reply With Quote
Old June 28th, 2010, 11:18 AM   #73 (permalink)
Senior Member
 
Join Date: Mar 2010
Location: Washington, DC
Posts: 608
 
Device(s): Samsung Galaxy Nexus
Carrier: Not Provided

Thanks: 93
Thanked 198 Times in 139 Posts
Default

the iphone interface is so smooth but the homescreen is boring...just a bunch of icons, but apple deserves credit for a polished ui


edit: Finally a Senior Menber!!!!!
__________________
Finally a Senior Member!!!!
Dont forget to use that Thanks button, its there for a reason
THEFORCE is offline  
Reply With Quote
Old June 28th, 2010, 11:21 AM   #74 (permalink)
Member
 
Join Date: May 2010
Posts: 128
 
Device(s):
Carrier: Not Provided

Thanks: 39
Thanked 34 Times in 17 Posts
Default

Quote:
Originally Posted by bamaster View Post
If there is one thing that the iPhone has better than pretty much any phone, is its polished interface. There's not a icon or menu that isn't thought through. Once you know how to go through menus in one of the native apps, you know how to use all of them.

Android Sense UI has a long way to go before it can get there. Some things are labeled "Options" some are "Settings". Sometimes you can use the menu button to get to them, sometimes you need to go into the Settings apps.

I read someone say that they liked this part of Android because it's for technical people and not for soccer moms. Really?

I love my Evo and I can never go back to a sub-4" screen again. But Android is playing catch up with the Apple interface and usability gurus.

troll!!! fanboy! fanboi!! go get a droid or an iFOOOOONE 5. go away. this is an "EVO pride" forum...

...anyway, apple and android offer many different things. i for one love the notification and keyboard (swype) and could never go back to that on my iPhone. i do miss ridiculuously snappy interface. it was very very responsive. android isn't EVEN CLOSE on that yet.
reemas is offline  
Last edited by reemas; June 28th, 2010 at 11:26 AM.
Reply With Quote
Old June 28th, 2010, 12:56 PM   #75 (permalink)
Member
 
Join Date: May 2010
Posts: 405
 
Device(s):
Carrier: Not Provided

Thanks: 32
Thanked 53 Times in 39 Posts
Default

Swype is pretty cool,but I never was able to type faster on it. Swype is ridiculously smart though.

I do like the android notifications slide down, much better than the iPhone notifications.
MrX8503 is offline  
Reply With Quote
Old June 28th, 2010, 01:16 PM   #76 (permalink)
J03
Senior Member
 
Join Date: Jun 2010
Location: Denver
Posts: 520
 
Device(s): Evo LTE, Evo 4G (RIP), Epic 4G
Carrier: Not Provided

Thanks: 11
Thanked 66 Times in 41 Posts
Default

No one has pointed out the fact that this guy paid an extra $30 for that gyroscope... or was it just so he would have service when he held the phone?
J03 is offline  
Reply With Quote
Old June 28th, 2010, 01:46 PM   #77 (permalink)
Bnice
Guest
 
Posts: n/a
 
Device(s):
Carrier: Not Provided

Default

Quote:
Originally Posted by bamaster View Post
If there is one thing that the iPhone has better than pretty much any phone, is its polished interface. There's not a icon or menu that isn't thought through. Once you know how to go through menus in one of the native apps, you know how to use all of them.

Android Sense UI has a long way to go before it can get there. Some things are labeled "Options" some are "Settings". Sometimes you can use the menu button to get to them, sometimes you need to go into the Settings apps.

I read someone say that they liked this part of Android because it's for technical people and not for soccer moms. Really?

I love my Evo and I can never go back to a sub-4" screen again. But Android is playing catch up with the Apple interface and usability gurus.
I think you have ANDROID and SENSE UI mix up, now if another phone UI doesn't function like the iphone its subpar? please iphone since 2007 has been the same at one point it was oh i have a app for this now they can't say that all i hear now the iphone is sexy and polish its a good device but its not blowing away these new smart phones coming out.
 
Reply With Quote
Old June 29th, 2010, 07:27 PM   #78 (permalink)
Junior Member
 
henryturk's Avatar
 
Join Date: Jun 2010
Posts: 19
 
Device(s):
Carrier: Not Provided

Thanks: 0
Thanked 5 Times in 2 Posts
Default

Can't this technically be emulated by the internal compass?

Edit: I didn't read any of this thread.
henryturk is offline  
Reply With Quote
Old June 29th, 2010, 09:50 PM   #79 (permalink)
Junior Member
 
ragebot's Avatar
 
Join Date: Jun 2010
Location: inner solar system
Posts: 71
 
Device(s): pre order EVO
Carrier: Not Provided

Thanks: 6
Thanked 2 Times in 2 Posts
Default

I am of two minds about a gyroscope in a cell phone. Since I am not a pilot (not to mention possible technical issues) I don't see a real world use for it right now. Still there might be something developed that would interest me, just not sure what it is. I am a serious astronomer and find Google Sky very useful, but do notice the lag; I just do not notice it enough to worry about it. As Krusty the Klown says "It's not just good, its good enough."

Bottom line is right now a gyro in a cell phone seems like an answer in search of a question; something that may change in time.
ragebot is offline  
Reply With Quote
Old June 29th, 2010, 10:23 PM   #80 (permalink)
Junior Member
 
Join Date: Jun 2010
Posts: 69
 
Device(s): Evo
Carrier: Not Provided

Thanks: 0
Thanked 12 Times in 5 Posts
Default

Problem number one is that people are saying that the gyroscope is the same as an accelerator but more accurate. This is dead wrong. They measure completely different things. The accelerometer measures acceleration and because we are in a gravity field, it can determine orientation. The gryroscope measures angular acceleration and can therefore determine rotation. Can you get one or the other by integrating the accelerometer's output or taking the derivative of the gyroscope's output? Somewhat. But it will never be as accurate as simply using the correct device. They both go hand in hand. Combine a 3 axis accelerometer with a 3 axis gryroscope and you get the so called 6 axis motion detection seen in stuff like the PS3 controllers. And no, a compass will give you neither.

The wikipedia pages on these two devices are good. For the people who actually want to learn, what don't you get?
Minjin is offline  
Reply With Quote
sponsored links
Old June 29th, 2010, 10:39 PM   #81 (permalink)
Senior Member
 
Join Date: Apr 2010
Location: Aurora, CO
Posts: 564
 
Device(s):
Carrier: Not Provided

Thanks: 62
Thanked 99 Times in 62 Posts
Default

It looks amazing, and will be in future phones. I love competition and how it pushes innovation. I see the iPhone stealing the Android-type notifications, and Android phones adding a gyro. If it weren't for these phones competing, we wouldn't have half the cool stuff we have now.
legacy is offline  
Reply With Quote
Old June 29th, 2010, 11:35 PM   #82 (permalink)
Junior Member
 
Join Date: May 2010
Posts: 51
 
Device(s):
Carrier: Not Provided

Thanks: 22
Thanked 13 Times in 10 Posts
Default

tx_brandon.. PLEASE PLEASE PLEASE go buy either
A) Iphone 4
B) Moto Droid X
3) Epic4g

Then come back and start posts stating how cool either of the above three are greater than than the EVO. Stop sitting on that fence go ahead and take the plunge it would save us the time of watching you agonize over a electronic device thats useful for < 1 year before it becomes obsolete.
jkr4577 is offline  
Reply With Quote
Old June 29th, 2010, 11:48 PM   #83 (permalink)
Senior Member
 
Join Date: Feb 2010
Location: Austin, TX
Gender: Male
Posts: 2,071
 
Device(s): Current: Nexus 5 Old: Moto Droid MAXX, Verizon SGS4, EVO LTE 4g, EVO 4g (OG)
Carrier: AT&T

Thanks: 732
Thanked 666 Times in 338 Posts
Default

it's a better accelorometer and that is it, it doesn't add more functionality and for a phone you don't need that kind of accuracy, so this is stupid
Covert_Death is offline  
Reply With Quote
Old June 29th, 2010, 11:53 PM   #84 (permalink)
Mr. Logic Pants
 
IOWA's Avatar
 
Join Date: Dec 2009
Location: Chicago
Posts: 8,832
 
Device(s): GS5 GS4 TF101 GS3
Carrier: Sprint

Thanks: 1,897
Thanked 2,346 Times in 1,211 Posts
Ask and ye shall receive!
Default Re: Had no clue how badass a gyroscope in a phone was until I watched this...

Quote:
it's a better accelorometer and that is it, it doesn't add more functionality and for a phone you don't need that kind of accuracy, so this is stupid
Exactly. Why everyone is acting like this is the second coming is beyond me. Show something you can do with this gyroscope, that I can't already do on my moment, then ill consider it useful. As cool as it is/sounds, I'd like to see some use for it before everyone goes gaga.

Tapatalk. Samsung Moment. Yep.
IOWA is offline  
Reply With Quote
Old June 30th, 2010, 07:01 PM   #85 (permalink)
Member
 
Join Date: May 2010
Posts: 405
 
Device(s):
Carrier: Not Provided

Thanks: 32
Thanked 53 Times in 39 Posts
Default

Quote:
Originally Posted by Minjin View Post
Problem number one is that people are saying that the gyroscope is the same as an accelerator but more accurate. This is dead wrong. They measure completely different things. The accelerometer measures acceleration and because we are in a gravity field, it can determine orientation. The gryroscope measures angular acceleration and can therefore determine rotation. Can you get one or the other by integrating the accelerometer's output or taking the derivative of the gyroscope's output? Somewhat. But it will never be as accurate as simply using the correct device. They both go hand in hand. Combine a 3 axis accelerometer with a 3 axis gryroscope and you get the so called 6 axis motion detection seen in stuff like the PS3 controllers. And no, a compass will give you neither.

The wikipedia pages on these two devices are good. For the people who actually want to learn, what don't you get?
Quote:
Originally Posted by Covert_Death View Post
it's a better accelorometer and that is it, it doesn't add more functionality and for a phone you don't need that kind of accuracy, so this is stupid
.
MrX8503 is offline  
Reply With Quote
Old June 30th, 2010, 07:31 PM   #86 (permalink)
Member
 
Joppie's Avatar
 
Join Date: Jun 2010
Posts: 151
 
Device(s): Sprint HTC EVO 4G
Carrier: Not Provided

Thanks: 12
Thanked 38 Times in 20 Posts
Default

Its a cool feature. The iPhone popularized touch screens when Blackberries were all the rage. Gyroscopes will be as standard in phones as micro-SD cards. Give it 6 months. The EVO 2 will have a gyroscope as well.
Joppie is offline  
Last edited by Joppie; June 30th, 2010 at 07:34 PM.
Reply With Quote
Old July 17th, 2010, 09:31 AM   #87 (permalink)
New Member
 
Join Date: Jul 2010
Location: Pittsburgh, PA, USA
Posts: 1
 
Device(s): -
Carrier: Not Provided

Thanks: 0
Thanked 2 Times in 1 Post
Default rate gyros measure angular velocity

Quote:
Originally Posted by Minjin View Post
... people are saying that the gyroscope is the same as an accelerator but more accurate. This is dead wrong. They measure completely different things. The accelerometer measures acceleration and because we are in a gravity field, it can determine orientation. The gryroscope measures angular acceleration and can therefore determine rotation...
Minjin is mostly correct.

Accelerometers measure acceleration in x, y, and z. Those can be accelerations because you're moving the phone around or acceleration due to gravity. The only time that the accelerometer would register (0,0,0) would be if it were in free fall. If you're holding the phone motionless, or holding it fixed in position and just rotating it, the dominant acceleration will be the one supporting the phone in opposition to gravity; an UP vector. From this you can calculate an elevation angle, but not an azimuth (angle around the up vector). Having a compass (magnetometer) could give you azimuth approximately.

The gyros used in phones are not spinning wheels, but rather microelectrical mechanical systems (MEMS) rate gyros typically of a tuning fork design. They measure angular velocity (not angular acceleration) -- how fast it is being rotated about the x, y, or z axis. It does not measure position or change in position at all. You could be moving at high speed or accelerating, but if you were holding the phone at a fixed orientation, the rate gyros would register (0,0,0).

If all you want to do is detect shaking, an accelerometer will do, but if you want coarse absolute control over pointing in 3D (which way is up? which way is north?), add a compass, and if you want fine relative control over pointing (pitch down 1 degree, yaw right 1 degree), a rate gyro helps a lot.
Paul Heckbert is offline  
Reply With Quote
The Following 2 Users Say Thank You to Paul Heckbert For This Useful Post:
AlbertN (June 2nd, 2011), Defiant (July 17th, 2010)
Old April 6th, 2011, 06:57 PM   #88 (permalink)
New Member
 
Join Date: Apr 2011
Posts: 2
 
Device(s):
Carrier: Not Provided

Thanks: 0
Thanked 0 Times in 0 Posts
Default

Both the iPhone and the EVO have Micro Electronic Mechanical Systems (MEMS) accelerometers. The software for a MEMS accelerometer has to be programmed to exclude very fast movements to exclude "noise" and to exclude very slow movements to exclude the effects of gravity in some cases. The types of vibrational MEMS gyros that are in the iPhones do not have the requirement of the software filters. Because of the software filters, the accuracy and responsiveness of an accelerometer is relatively limited when compared to a MEMS gyro. Having both an accelerometer and a gyro will provide the best level of movement and orientation detection. I would like to see an EVO type phone with a gyro in addition to an accelerometer. Since both may be prior art before the days of smart phones, I don't see any reason for HTC not to include a gyro in their next version of the EVO.
colnelb is offline  
Reply With Quote
Old April 7th, 2011, 06:40 AM   #89 (permalink)
New Member
 
Join Date: Apr 2011
Posts: 2
 
Device(s):
Carrier: Not Provided

Thanks: 0
Thanked 0 Times in 0 Posts
Default

To add to my previous comment. Before there was GPS, there was "inertial guidance systems" (IGS) that were used to navigate by. IGS used a combination of accelerometers and gyros. The gyro would allow you to calculate which direction you were going and the accelerometers would allow you to calculate how far you have gone. At the time, IGS was the most accurate navigation system available. If properly set up, a good IGS could show you within a short distance where you were and what your altitude was. They continue to be used as backup navigation systems for some things.

The problem with gyros at the time, they had to spin up and stablize before they could be set and be reliable. The MEMS gyros used in the iPhones do not have that problem. With the new technology, IGS without the problems of the old technology are available, and in some cases, more accurate than the older systems.

With the proper app, all a pilot has to do is do a "set" when he first gets in his plane for it to provide navigation backup for him. I am not sure if the iPhone will be as accurate as a commercial/military IGS, but it should do in a "pinch". It would also be great for hikers and campers. With the solar flares that a coming in the next few years, effecting the GPS satellites, it would be good for anyone to have an IGS backup to their GPS. I would really like to see HTC have a gyro in their next phone. I am sure that someone will write an IGS app for it. I would be willing to provide financial support for such an app.
colnelb is offline  
Reply With Quote
Old April 8th, 2011, 11:30 PM   #90 (permalink)
New Member
 
Join Date: Apr 2011
Location: Philadelphia,PA
Posts: 5
 
Device(s): G1, Mytouch 3g, Mytouch Slide 3g, G2, HTC EVO
Carrier: Not Provided

Thanks: 0
Thanked 2 Times in 2 Posts
ldominguez1986
Default

Quote:
Originally Posted by mbaseball3 View Post
Just get a psp to play games. I'll keep my phone for calls messaging and internet thank you. Imo, a fail! If apple wants to 'compete' in gaming world then they need to make an igamer or something crappy to follow suit of their other products. Oh don't forget to hold it properly Lololol

Sent from my HTC Hero using Tapatalk
Man, what a bunch of haters on here. I love my evo but would i like it more it had a gyro yeah. Why not give credit where credit is do? When you show your phone to someone who is interested in it you tend to say it has this, that and the other thing. The OP is not saying wow I want an iPhone but he admires that feature as do I. If the evo or any other htc came with gyro would you still be dissing your phone, NO. It would just be one extra thing that made your smart phone better...
ldominguez1986 is offline  
Reply With Quote
The Following User Says Thank You to ldominguez1986 For This Useful Post:
EarlyMon (April 9th, 2011)
sponsored links
Old April 9th, 2011, 02:45 PM   #91 (permalink)
The PearlyMon
 
EarlyMon's Avatar
 
Join Date: Jun 2010
Location: New Mexico, USA
Posts: 46,276
 
Device(s): M8, LTEvo, 3vo, and Shift - Evo retired
Carrier: Sprint

Thanks: 42,674
Thanked 57,102 Times in 22,937 Posts
Default

Welcome to the forums - well said!
__________________
|

Minutus cantorum, minutus balorum, minutus carborata descendum pantorum.

Links: Site Rules / Guidelines -and- Zero Tolerance Policy (All Members Read)


For right-on help, the Thanks button is on the right of the post.
For anything out in left field, the /!\ report button is to the left.

Remember, it's our forums and we're all in this together - so let's keep it cool!

Shoot the breeze at the best new gun forum!
EarlyMon is online now  
Reply With Quote
Old April 9th, 2011, 03:00 PM   #92 (permalink)
The PearlyMon
 
EarlyMon's Avatar
 
Join Date: Jun 2010
Location: New Mexico, USA
Posts: 46,276
 
Device(s): M8, LTEvo, 3vo, and Shift - Evo retired
Carrier: Sprint

Thanks: 42,674
Thanked 57,102 Times in 22,937 Posts
Default

Quote:
Originally Posted by colnelb View Post
To add to my previous comment. Before there was GPS, there was "inertial guidance systems" (IGS) that were used to navigate by. IGS used a combination of accelerometers and gyros. The gyro would allow you to calculate which direction you were going and the accelerometers would allow you to calculate how far you have gone. At the time, IGS was the most accurate navigation system available. If properly set up, a good IGS could show you within a short distance where you were and what your altitude was. They continue to be used as backup navigation systems for some things.
I used to work on those, up to the ring-laser gyro models.

Actually, the gyros had pick-ups on them that essentially provided raw accelerometer counts. Remember basic calculus - 1st derivative is velocity, 2nd is acceleration - so in reverse order - integrate accelerometer data once for velocity, integrate again for position change.

I'd not want to use any phone for inertial nav tho - the iPhone would require iTunes for some part of it, and the Evo would be displaying ads for businesses you were passing by. (j/k lol)

But - there's a lot of interesting games and apps that can benefit from a gyro, no doubt.

Glad you brought up MEMS. Here's a view of a MEMS gyro for those interested - iPhone 4 Gyroscope Teardown - iFixit

Here's an interesting Apple vid - it has Jobs doing the demo, so if anyone doesn't like him, don't watch -

YouTube - Apple iPhone 4 Gyroscope demo
EarlyMon is online now  
Reply With Quote
Old April 10th, 2011, 09:10 AM   #93 (permalink)
Senior Member
 
lordofthereef's Avatar
 
Join Date: Nov 2010
Posts: 3,133
 
Device(s): EVO 4G Rooted + CM7 [ROM]
Carrier: Not Provided

Thanks: 358
Thanked 368 Times in 291 Posts
Default

Here's the thing a lot of people are missing about the gyro... it will add customers that previously might not have considered it. More customers means a bigger mod and dev community. In the end, wether you use the gyro (or any other feature), the more feature packed the phone is, the better it is for everyone that owns the device.
__________________
"A dog is the only thing on earth that loves you more than you love yourself" - Josh Billings
lordofthereef is offline  
Reply With Quote
Old April 28th, 2011, 10:21 PM   #94 (permalink)
Junior Member
 
Join Date: May 2010
Location: Austin, Texas
Posts: 61
 
Device(s): HTC Touch Vogue, HTC EVO when launches
Carrier: Not Provided

Thanks: 3
Thanked 8 Times in 5 Posts
Smile

Nobody mentioned it, but the EVO 3D has gyroscope.
myriam is offline  
Reply With Quote
The Following User Says Thank You to myriam For This Useful Post:
bdhnder (May 31st, 2011)
Old April 28th, 2011, 10:29 PM   #95 (permalink)
The PearlyMon
 
EarlyMon's Avatar
 
Join Date: Jun 2010
Location: New Mexico, USA
Posts: 46,276
 
Device(s): M8, LTEvo, 3vo, and Shift - Evo retired
Carrier: Sprint

Thanks: 42,674
Thanked 57,102 Times in 22,937 Posts
Default

I recall seeing it's claimed to have accelerometers and a g-sensor, but haven't seen it claimed with a gyro.
EarlyMon is online now  
Reply With Quote
Old May 30th, 2011, 06:18 PM   #96 (permalink)
Junior Member
 
falk's Avatar
 
Join Date: Dec 2009
Posts: 26
 
Device(s):
Carrier: Not Provided

Thanks: 0
Thanked 2 Times in 2 Posts
Default

LG Optimus 3D has gyros; they're very impressive.

A few points: Although accelerometers measure acceleration and not rotation, they also give you a vector in the "up" direction thanks to the acceleration of the earth's gravity. Combine this with magnetic field information (compass), the device can determine its orientation in three dimensions. This in turn, means that the accelerometer and compass can give the device anything that the gyros can. More, actually, since the gyros give only rate of change while the accelerometers & compass give you absolute values.

However, the input from the accelerometers and compass produce a very jittery input. A good example of this would be Google Sky Map. This can be improved by filtering, but at the expense of lag.

What gyros give you is extreme smoothness and responsiveness. I've seen Google Sky Map running on an iPhone with gyros, and it was beautiful to watch in comparison to the accelerometer-only version.
falk is offline  
Last edited by falk; June 5th, 2011 at 09:13 PM.
Reply With Quote
Old June 5th, 2011, 07:00 PM   #97 (permalink)
Senior Member
 
Vanquished's Avatar
 
Join Date: Nov 2010
Location: USA
Gender: Male
Posts: 1,039
 
Device(s): LTEvo
Carrier: Sprint

Thanks: 278
Thanked 285 Times in 138 Posts
Default

The EVO 3D will have a gyroscope:

http://androidforums.com/htc-evo-3d/346198-htc-evo-3d-dummies.html#post2769970
__________________
"The only easy day was yesterday! Hooyah!"
Vanquished is offline  
Reply With Quote
Old June 6th, 2011, 07:30 AM   #98 (permalink)
Member
 
Join Date: Apr 2011
Gender: Male
Posts: 111
 
Device(s): GS3
Carrier: VZW

Thanks: 5
Thanked 15 Times in 13 Posts
Default

I had no idea how awesome a compass was till mine quit working.
wolf_walker is offline  
Reply With Quote
Old March 23rd, 2012, 05:37 PM   #99 (permalink)
New Member
 
Join Date: Mar 2012
Posts: 2
 
Device(s):
Carrier: Not Provided

Thanks: 0
Thanked 0 Times in 0 Posts
Default GPS independent nav sytem

Quote:
Originally Posted by colnelb View Post
To add to my previous comment. Before there was GPS, there was "inertial guidance systems" (IGS) that were used to navigate by. IGS used a combination of accelerometers and gyros. The gyro would allow you to calculate which direction you were going and the accelerometers would allow you to calculate how far you have gone. At the time, IGS was the most accurate navigation system available. If properly set up, a good IGS could show you within a short distance where you were and what your altitude was. They continue to be used as backup navigation systems for some things.

The problem with gyros at the time, they had to spin up and stablize before they could be set and be reliable. The MEMS gyros used in the iPhones do not have that problem. With the new technology, IGS without the problems of the old technology are available, and in some cases, more accurate than the older systems.

With the proper app, all a pilot has to do is do a "set" when he first gets in his plane for it to provide navigation backup for him. I am not sure if the iPhone will be as accurate as a commercial/military IGS, but it should do in a "pinch". It would also be great for hikers and campers. With the solar flares that a coming in the next few years, effecting the GPS satellites, it would be good for anyone to have an IGS backup to their GPS. I would really like to see HTC have a gyro in their next phone. I am sure that someone will write an IGS app for it. I would be willing to provide financial support for such an app.
There is a huge potential for a Backup navigation system for GPS given the instabilty both political and from solar flare interference. It looks as though the advent of gyroscopes and magnetic compasses will soon provide the developer the tools for at least a reasonably accurate navigation system based on the rectified images of stars and the sun&moon. The mathematical solution to working out a fix without identifying the actual heavenly body remains to be published. I am working on a prototype version of this. Unfortunately a lot of the code is in legacy Visual Basic.

Would love to meet up with someone who has the ability to spacially rectify images of the heavenly bodies

New member
Huerfano is offline  
Reply With Quote
Old March 23rd, 2012, 07:08 PM   #100 (permalink)
Junior Member
 
falk's Avatar
 
Join Date: Dec 2009
Posts: 26
 
Device(s):
Carrier: Not Provided

Thanks: 0
Thanked 2 Times in 2 Posts
Default

I implemented a pretty nice navigation package on Android that uses accelerometers, compass, gyros, and gps. My experience was that while the gyros are good enough to be used to stabilize a game, they drift far too much to be used for navigation.

I wrote a Kalman filter to combine the accelerometer input and gyro input to get a smooth output, but it still needs tuning. However, filter or no filter, I think the gyros will always drift too much to be used for navigation.

The accelerometers are worse, of course. Way too much jitter and noise. Remember that the gps, compass, accelerometers and gyros in a cell phone are designed to be as cheap as possible, not as accurate as possible.
falk is offline  
Reply With Quote
Reply

HTC EVO 4G
Current Rating:
Rate this Phone:

When Sprint announced their first ever 4G handset at CTIA in March 2010, they dropped a bombshell on the mobile world. The HTC Evo 4G is a device that introduces a lot of firsts when compared to other North American handsets. This is the first Andr... Read More



Go Back   Android Forums > Android Phones > HTC EVO 4G
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 03:40 AM.
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.