Power to the Smartphone

re: Power to the Smartphone

frank — Sat, 05 Aug 2006 08:03:58 GMT

i've said death to leds on handheld devices for 10 years.

on my windows mobile i'm lucky to get 50 hours of standby time TOTAL, much less extra.

i'm always amazed by how much power is wasted by people who think unnecessary notifications are valuable.

re: Power to the Smartphone

Solnyshok — Sat, 05 Aug 2006 08:32:56 GMT

Well, I will speak for Pocket PC PDAs... ipaq wifi and bt led actually do not blink. it is are ON continuously when bt or wifi is on. even before you explained the power drain, I thought that it will burn through my eyes in no time.

Getting rid of ipaq BT/WiFi led is very easy

HKLM/Drivers/Builtin/BWLedMgr/Dll=BWLedMgr.xdll

re: Power to the Smartphone

Andy — Sat, 05 Aug 2006 08:37:53 GMT

Speaking of the backlight sucking up copious amounts of battery power - it would be *GREAT* if the MS Mobiles/Smartphone team would develop and release a "backlight powertoy" that would allow us users who don't want or need the backlight to turn it off completely. I am perfectly able to see my homescreen and menus in normal light without the backlight, and I honestly would prefer if it never came on. Can you guys please make something like this? Powertoys for WM5 in general are non-existent at this point so maybe if you guys have something in the works you could add this incredibly helpful little option for those of us dying for longer battery life! Thanks!

Pockeck PC article

Corentin — Sat, 05 Aug 2006 18:00:39 GMT

Would love to read a similar article about pocket PC!!!

re: Power to the Smartphone

LazerFX — Sat, 05 Aug 2006 19:08:39 GMT

I'd love to see a PocketPC article. I'm rather interested in the differences, as a potential .NET developer for PocketPC devices, and as a consumer (With a Dell X51v). I was shocked that a LED consumed that much power - I've always thought of them as low-drain devices.

If you could tell us how to get rid of flashing LED's on PocketPC's, that'd be great ;) If not, details of the power drains would be much appreciated.

Incidentally, how much does memory drain?

Smartphone battery consumption made simple

MobileRead — Sat, 05 Aug 2006 23:00:09 GMT

Everyone seems to have their own ideas about what drains the battery power in their smartphone. We've previously seen an application that helps you figure out what drains the battery. And we've seen a very technical explanation of it all.

Now,...

re: Power to the Smartphone

Levo — Sun, 06 Aug 2006 00:41:28 GMT

GREAT article. Please continue to write on power. Stuff I'd like to see:

* Why do color screens take more power? How much more?

* Do different screen technologies take different amounts of power?

re: Power to the Smartphone

Jason — Mon, 07 Aug 2006 01:11:58 GMT

Interesting

Consumos de baterías en los Smartphones

Celularis — Mon, 07 Aug 2006 05:52:08 GMT

En el blog del equipo de Windows Mobile hay una excelente nota sobre como se usan las baterías en los Smartphones. En la nota se explica el concepto de miliamperes/hora con la que se están midiendo las baterías hoy en...

re: Power to the Smartphone

Riki — Mon, 07 Aug 2006 07:33:17 GMT

>4.5 mA
@ 3.4V -> 15mW
very interesting - i was working on a device (commercial - no radios, Freescale CPU) that did 1.0mA @ 12V -> 12mW in idle, interesting to see we weren't too far off cell phones.

re: Power to the Smartphone

Marc — Mon, 07 Aug 2006 11:15:33 GMT

I've always hoped to see "power Profiles" for mobile devices, similar to laptops.

When the battery reaches 50% then cpu = x, backlight brightness = x, etc. When battery reaches 25% then... You get the idea.

Basically you could have profiles for: Best performance, Audio & Video and Power Saving etc.

Either that or OEM's need to supply higher capacity batteries ;)

re: Power to the Smartphone

Matt Lacey — Mon, 07 Aug 2006 12:28:40 GMT

Can I make another request for a PocketPC equivilent article also, please.

re: Power to the Smartphone

Philippe Majerus — Mon, 07 Aug 2006 20:51:12 GMT

Very interesting, the same about Pocket PC would be great to compare.
I must admit the Qtek 8310 (HTC QVGA Smartphone) has an impressive battery life, while the 9000 (HTC VGA Pocket PC) is a bit dissapointing.

re: Power to the Smartphone

Matthew — Mon, 07 Aug 2006 22:18:56 GMT

LEDs shouldn't be banished, but they should be configurable. Blink to say I'm on the network? No, that's normal. Blink to say I have a message waiting? Yes, that's useful, and consumes far less power than waking the whole phone, turning on the screen and backlight, and letting all the idle processes wake up and start running just to see if maybe I have a message waiting.

Care to speculate why the Motorola Q gets 20 hours battery life in standby if I'm really lucky? My PocketPCs can go for several days in standby without the obnoxious Q default of turning off the screen several second after the last button push, making it impossible to read a message without constant scrolling about to keep it awake.

re: Power to the Smartphone

Alberto Silva — Tue, 08 Aug 2006 03:09:45 GMT

Some people believe that using 'light' colors as background instead of dark colors can increase power consumption. Is there any true on this?

re: Power to the Smartphone

CpDbob — Tue, 08 Aug 2006 12:09:14 GMT

And what about Ti OMAP 850 in HTC Wizard\Prophet.

Overall, I can't understand why power consumption is so different usind the same hardware. Take for example Asus A632\636N\639

re: Power to the Smartphone

Kiran Bellubbi — Tue, 08 Aug 2006 20:27:58 GMT

Hi,

I am sorry to add a completely off the topic comment - but I just wanted to let everyone on the Windows Mobile team know that we just launched the Mobile Monday Chicago chapter and we've had one event already with another planned for the 21st of this month (Neal Ford will be talking this month on Mobile Web 2.0). I was hoping to get one of you on the WM team to come out here and speak at one of the events... We're also having a demo of the latest Neuros device on the 21st.

Any interest?

Please email me @ kiran.bellubbi [aT] gmaiL . com

re: Power to the Smartphone

DougT — Tue, 08 Aug 2006 21:47:34 GMT

I'm wondering if the author - by use of the word Smartphone - was referring to both varieties? Most of what I see here, I would expect to be the same in both platforms - no? The LED on my K-Jam probably takes up the same power as the LED on another phone. Same for BT radio, backlight on a 320x240 screen (ok, the digitizer takes up a bit extra), etc. Seems to me that most of this is probably on target for PPC's....

-Doug
http://www.htcphones.info

re: Power to the Smartphone

The One Eyed Man — Tue, 08 Aug 2006 23:01:33 GMT

Not sure if WM devices still do this or not, but under CE 3.0 and Pocket PC (CE 4.0) they DID: WHY DO YOU HAVE TO HAVE A BLINKING RED LED TO TELL ME THAT MY BATTERY IS ABOUT TO DIE??? JUST LET IT DIE.... DON'T CONSUME IT FASTER!!!!

re: Power to the Smartphone

Rob F — Wed, 09 Aug 2006 01:39:04 GMT

Mike,

Thanks for another interesting and informative article. A follow-up on PPC power consumption would be most appreciated.

I was surprised at the power consumption of LEDs. In light of this, I would prefer to have information such as network connection and Bluetooth radio state indicated by Today icons, rather than LEDs, at least as a user-configurable option.

You mentioned that the LEDs are "completely OEM-controlled". Does this mean that their function is set in the ROM image, and could not be changed by a software "powertoy", as suggested above?

Also, I am not surprised at the high power consumption of the Bluetooth radio and agree with you that disabling it some of the time would yield better battery life. I think the main reason I don't do this is because of the UI design. I typically carry my SMT 5600 in a belt holster with the keypad locked, to prevent unintended audio recordings (easy to do with this model) and speed-dial calls. To turn off the BT radio, I have to do the following: Start (to wake up), Unlock, # (to confirm unlock), Start, Settings, Bluetooth, Bluetooth, Left (to select "Off"), Done, and press-and-hold End (to go back to locked state); ten keypresses. Then when I am walking to my car, where I may want to use my BT headset, another ten keypresses to re-enable it (trying not to walk into a pole in the garage as I walk while staring at my phone :) ).

This isn't directed at you, if UI is not your area, but it is something to consider for the next iteration of the OS. A little thought here on surfacing valuable features could help you to help all of us more easily maximize our battery life.

Thanks,

Rob

re: Power to the Smartphone

George Leithead — Thu, 10 Aug 2006 17:27:24 GMT

I too have always thought that the 'blink' rate on the phone was way too much. I would really love to have this under the user control, much like the "Accessibility" options under Settings on a SmartPhone.

For me, on my SmartPhone I have a very short backlight time out, followed by a slightly longer display timeout.

Do we know how much power the "Light Sensor" takes? On devices such as the SPV C550??? I am sure that this too is going to consume about the same power as the LED!

re: Power to the Smartphone

dahua007 — Tue, 15 Aug 2006 07:54:13 GMT

Yes, the backlight eats power like a whale eats plankton :). My method is to have backlight not to openned when environment light is power enough. There is a software named Nine Way Keypad that can replace left softkey with a numeric key. For some device, if you unlock keypad or phone by this numeric key but not real left softkey, the backlight would not be openned unless you press real left softkey.

re: Power to the Smartphone

MikeCal — Tue, 15 Aug 2006 19:56:08 GMT

Thanks for all the replies folks. Sorry I haven't been responding. I was on vacation last week.

I'll definitely do an equivalent PPC entry. Hopefully I'll be able to get to it this week.

Here are a few answers to some of the questions asked here:

One of the reasons you see so few PowerToys for WM is that most of the stuff you'd want PowerToys for are under OEM control and not standard. For instance, the backlight driver is written by OEMs and there is no interface into the driver to say "turn the backlight off." Some OEMs have ways to do this, but that way is going to be specific to that OEM. On many PocketPCs there's a control panel setting that lets you disable the backlight. On some if you press and hold the power button, it will turn off the backlight and keep it off. But there's no standard method (that I'm aware of, at least) that works on all devices.

Similarly, there's no generic way to get rid of the blinking LEDs. Again, OEMs own the drivers that control those LEDs. Sometimes it's something even deeper than the drivers (we've had devices where the Cell radio hardware blinks the green LED).

I'm currently working on a registry controlled LED service that would be designed to let the OEMs not need to worry about blinking LEDs. It so happens, because I'm a typically devious sort of guy, that it would allow me (and other power users) to disable blinking these darned things. However, it's unlikely that we'll force our OEMs to use this service. We'll make it available to them and encourage them to use it, but we generally let them do what they want when it comes to hardware and drivers.

Regarding the Q, I've seen pretty conflicting reports on battery life. For some people, it's great. For others, it's not. My best speculation is that the people with poor battery life live in poor signal strength areas.

Regarding older versions that blinked a red LED when the battery got low. Hey, we used to do even better than that! We used to wake the device up, turn the backlight on, play a sound, and pop up a notification that the battery was critically low. Repeatedly. We're a bit smarter than that now.

Regarding how hard it is to turn on and off BTh: yeah, that annoys me too. I wrote a quick little program to make it easier. Check out my ToggleBTh (linked from here) http://blogs.msdn.com/windowsmobile/archive/2006/01/11/511660.aspx

Re: Light Sensors. Assuming that's done right, it wouldn't take much power at all. For one thing, it takes a lot less power to passively sense light than to actively generate it. For another, the sensor would probably only be on while the backlight is on, and the backlight's power drain would dwarf the sensor's. Finally, the code most likely would only check the sensor every once in a while, not continuously. One of the guys who works for me wrote the code for a light sensor recently and we had it only sense once when the backlight turns on and then not again until the backlight had been left on for over a minute. The effect would be miniscule.

Regarding the various LCD (not backlight) questions, I'm pretty sure I know the answers, but I want to cross check them with some of my hardware friends to be sure. I'll get back to you on them.

Mike

Will PUSH email kill my Moto Q's battery life?

XPS, Mobile Devices, and everything Microsoft — Tue, 15 Aug 2006 22:00:28 GMT

There's been a lot of concern over MSFP and how it affects battery life on Windows Mobile devices.&nbsp;...

Power to the PocketPC

Windows Mobile Team Blog — Wed, 16 Aug 2006 21:40:36 GMT

In my recent “Power to the Smartphone” entry, I talked about the biggest drains on Smartphone batteries.&nbsp;...

????????????-Blog » Windows Mobile Team on the Power Consumption issues of Pocket PC’s; new power consumption measurements published!

Fri, 18 Aug 2006 19:21:33 GMT

PingBack from http://blog.wobuxihuan.org/2006/08/17/windows-mobile-team-on-the-power-consumption-issues-of-pocket-pcs-new-power-consumption-measurements-published/

The Mobile Minute 149

Nino.Mobile — Tue, 05 Sep 2006 04:17:57 GMT

Software / Hardware SOTI Pocket Controller Professional v5.07 is out Pocket PC Thoughts is reporting

Monthly URL Digest September 2006

The Digital Geographer — Fri, 06 Oct 2006 00:49:42 GMT

Here are a set of interesting URL's from my news feeds from August and September 2006 (in no particular order!): Listen to Radio on Your Pocket PC (Phone Edition) with Mundu Radio Screencasts on the subject of Windows Mobile development...

re: Power to the Smartphone

Ron — Sun, 31 Dec 2006 19:28:40 GMT

I have my phone check for email every 15 minutes. Does that process use a lot of power?

re: Power to the Smartphone

Anon — Thu, 08 Feb 2007 08:19:29 GMT

Very nice article. Could you please cite the source from where you are getting these energy measurements? Did you actually run the experiments or these are published as part of the device manual? For instance you said that a device in running at 1% CPU throughout will roughly have a 10 times shorter life as that which is in complete standby. Intuitively, I see how your numbers make sense but if you could quote a source it would be more legitimate.

re: Power to the Smartphone

MikeCal — Wed, 14 Feb 2007 01:44:03 GMT

We have these cool power monitor boxes here. The power monitor boxes provide power and measure exactly how much they provide. We can remove a device's battery, clip on some leads from the power monitor box, and watch exactly what is happening. The box stores data over time and we can then go back and analyze that data.

Some of the data I gave above came from those power monitors and some of it comes from comparing specifications for parts to parts we actively measured. Because these are generalizations, though, you'll always be able to find devices with parts that are more or less power hungry than others. You can really only use what I said above as a rule of thumb.

Mike

re: Power to the Smartphone

KASHIF — Thu, 08 Mar 2007 19:20:50 GMT

hi there i was wondering if someone could please explain to me how if a portable power device was producing a certain power output per hour it can be related to the mAh rate? i do not understand how to determine the voltage from this portable power device.

Thanks

Kashif

re: Power to the Smartphone

MikeCal — Thu, 08 Mar 2007 20:06:56 GMT

KASHIF, electrical power is usually measured in Watts, which is current times voltage (Amps x Volts). You might think you would need to look at both the current and the voltage to figure out where the power is going. But on a mobile device the voltage doesn't change. So you can pretty much ignore it and just look at the current. If the voltage is fixed, the only thing that can affect power is the current.

The tools we use all measure amps. Many of them do it by sticking a small resistor in line with the battery and measuring the voltage drop across it. Because the resistance is known, we can use ohms law (V=IR) to get the current.

Once you know how much current is flowing out of the battery (how many milli-Amps), you just need to multiply by hours to get the mAh rate. For instance, if 1 mA flows out of the battery for an hour, you've just used 1 mAh.

Does that help?

Mike

re: Power to the Smartphone

KASHIF — Sat, 17 Mar 2007 20:24:09 GMT

Hi Mike,

Thanks for the help, that explains it alot better now.

If I wanted to caluclate how much power is used by the mobile phone in 1 hour of call-time how would I do it?

Would it just be P=IV, "POWER = 1mA x 3.5" "POWER = 3.5 mW"? so divide by 360 for power per second?

Thanks for the help

Kashif

re: Power to the Smartphone

MikeCal — Mon, 19 Mar 2007 20:23:53 GMT

KASHIF, Power is an instaneous value. It doesn't have time in it. If you look at the bill from your power company, you'll find that your usage isn't measured in Watts (or KiloWatts). It's measured in Watt Hours (probably KiloWatt Hours, or kWh).

Think in terms of a 60 Watt light bulb. Every instant that the light bulb is on, it burns 60 Watts of power. If you leave the light bulb on for an hour, you've burned 60 Watt Hours of power.

In the example you gave, if the phone runs at 3.5 volts, and if the extra current when on a phone call is 1mA, then the power from a phone call is 3.5mW, as you said. If you talk for an hour, it's 3.5 milliwatt hours, or 3.5mWh.

Mike

re: Power to the Smartphone

Neotialbe — Sat, 28 Apr 2007 20:46:22 GMT

Yes, LED can last for 10 years but do you know after you use it for 2-3 years, the color gets a lot dimmer. This is something that need to develop more in LED but normally people don't know and never relize about it. I got this information about this from talking with somebody via http://en.mysnglife.com/index.php?p=3265#comment-687

re: Power to the Smartphone

Neotialbe — Sat, 28 Apr 2007 20:47:47 GMT

Oh, sorry, I just gave the wrong link. I meant this link www.lunaraccents.com/technology-programmable-LED-controller.html

re: Power to the Smartphone

oncall — Sat, 28 Apr 2007 20:49:36 GMT

Do you mean this one ?

http://www.lunaraccents.com/technology-programmable-LED-controller.html

re: Power to the Smartphone

Lim — Fri, 11 May 2007 14:21:19 GMT

HI Mike, thanks for the informative article.You mentioned a lot about current usage in each component that drains off the battery life.My question is if you use a CPU that is of lower operating voltage,will it helps to save some power since P=VI? If i try to reduce I but increase V,although the P may be the same,however now I is reduced, so based on all the examples you mentioned that is based on I consumption, does this mean we can have longer battery time?

re: Power to the Smartphone

MikeCal — Fri, 11 May 2007 23:22:46 GMT

Lim, the reason I can ignore V and just talk about I is that, on a given device, V is fixed. Components have a required voltage and software doesn't have the option of changing that voltage to use less power.

It IS true that a phone designed to use lower power components can burn less power than one designed to use higher power components. For instance, 5 volt DRAM parts usually burn more power than 3.3V ones. As phones started being designed with the lower voltage RAM, those phones were able to use less power than the previous phones with the higher voltage RAM.

However, once the phone hardware has been designed and built, it's almost impossible to change these components. So, at that point, we need to focus on current.

Mike

re: Power to the Smartphone

JJ — Mon, 14 May 2007 11:55:50 GMT

Hello Mike,

Your article is great!Thanks for the great sharing.

One quick question about power consumption in Smartphone or mobile devices.Normally, concern for power is mainly for more battery life? What are the other major reasons to reduce the power consumption? Heat and component reliability or life span?

re: Power to the Smartphone

MikeCal — Mon, 14 May 2007 18:59:49 GMT

Hi JJ,

Battery life is the primary concern. Because phones are small, their battery capacities are also small. There's not enough power in there to really worry about heat dissipation. If a component was burning enough power to create unwanted heat, it would just destroy the battery life. So worrying about the battery life covers the other bases.

Mike

re: Power to the Pocket PC

luker — Wed, 30 May 2007 03:52:39 GMT

pleeeeeease discuss PocketPC (WM5/6) as well.

One main issue I am discussing with users is that; the email and UpToDateNotifications eats battery when using Push.

them-For - "Direct Push" keeps the data connection open, therefore its using less energy using true "Push" technology via Exchange server.

me-Against - "Pull" increases my battery life (and other users') by 25% or more so i can go 1 or 2 days before charging - setting the phone to get email say, every 10 or 15 minutes.

This is a query for unread mail and does not use push at all (?)

Once this change is enacted battery life improves no matter what you are using the device for.

Thanks

re: Power to the Smartphone

isaiah — Tue, 10 Jul 2007 13:16:51 GMT

would be good if you had a post on Pocket PCs

re: Power to the Smartphone

Trevor Morris — Tue, 10 Jul 2007 18:54:08 GMT

Is there a utility that will tell me how much power (or CPU cycles) my application is using? I think I've effectively eradicated all power wasting threads, but would like some definitive proof.

re: Power to the Smartphone

MikeCal — Wed, 11 Jul 2007 19:14:25 GMT

Trevor, I've been meaning to write one, but haven't had a chance. The information is available, but buried deep in the kernel and needs a trusted app to call into it. That makes it hard to write for smartphone, since the app needs to be signed.

I'm not aware of any third party apps that extract this data and give it to you.

Sorry,

Mike

re: Ambient Light Sensors for mobile & notbook computer

po188 — Sat, 15 Sep 2007 06:59:50 GMT

The Po188 is a photoelectrical integrated optical sensor designed at λp=520nm, with double sensitive receiver. It is highly sensitive to visible light, and varies linearly with illumination changing. It is used in saving energy, automatic sensitivity to light, and self-adaptive control in TV, LCD back light, Digital code product, instrument, industry device etc.

■ Electric Characteristic

 Small dark current, low illumination response, high sensibility, output current in proportion to illumination;

 Built in double sensitive receiver and Optical filter-less, attenuate near infrared automatically. Spectral response close to human eye sensitivity;

 Embedded micro signal CMOS amplifier, high precision voltage source, and correct circuit; Output current is high;

 Two Optics material packages to choose, to permeate visible light, cut off ultraviolet, relative damp infrared ray, and improve optical-filter effect;

 Accord with RoHS standard. Pb free, CdS free.

Wake on external power

Alz — Wed, 31 Oct 2007 20:27:13 GMT

Hi guys! Is it possible to write an app to wake up the device when external power is connected?

re: Power to the Smartphone

MikeCal — Tue, 20 Nov 2007 22:11:09 GMT

Alz, does the device you want to write this app for have a touch screen? There are two flavors of Windows Mobile, "Professional" (aka "PocketPC") and "Standard" (aka "Smartphone"). The easiest way to tell which you have is that PocketPC's have a touch screen and Smartphones don't.

When a PocketPC goes to sleep, the CPU turns off completely. So there's no way to write an app that runs while the PocketPC is asleep. If this is the type of device you have, then, no, you can't write an app to wake it up on external power. Some OEMs have designed their hardware to enable waking up on external power, though. You might find a setting for this under Settings.

When a Smartphone goes to "sleep" it turns off the screen and puts the CPU into a low power state, but keeps the CPU able to run applications. Because the CPU is still able to run, it's possible to write apps that do things in this state. "Wake up" in this case, though, really amounts to turning on the screen.

Mike

re: Power to the Smartphone

vijayPalvai — Fri, 08 Feb 2008 13:48:25 GMT

Hi Mike,

your Article on power consumption is really helpfull! could you please help me to get the following info:

1.Is there any tool or microsoft powertoy that could help,monitor the amount of power an executable on the windows mobile smartphone is consuming ?

Regards,

Vijay

Maybe it's brain surgery after all

Paul's Down-Home Page: Exchange, messaging, collaboration, security, and more — Wed, 19 Mar 2008 04:02:41 GMT

Craig Hockenberry is a smart guy. He's been around for a while, and has an impressive track record in the Mac software world. I don't, but that's not going to stop me from arguing with him about background apps on...

My 10 Mobile Developer Tips

The Windows Mobile RSS (Reed and Steve Stuff) Feed — Wed, 23 Jul 2008 00:14:07 GMT

Over the years, I’ve delivered several “Top 10” sessions and called them different things. Top Snafus,

Mobile CPU power consumption benchmark

amidan — Fri, 24 Oct 2008 18:03:24 GMT

Hi All,

I have to determine the power consumption of the CPU (a part of the SOC)for a series of smart phones (e.g. Nokia, BlackBerry, Motorola and HTC). My problem is that I don't have the perfect solution to do this but and old fashion one using an amp meter to measure the current on stand-by and after that during the execution of a test software program. More specifically I must measure the power consumption for each phone while running a series of Java benchmarks (for example GrinderBench).

To obtain the measurements I searched for software that helps you measure your phone’s power consumption. For example I found: ”Nokia Energy Profiler” , which works on Nokia sets only. My problem is that for the other phones I did not find similar software applications. If anyone knows where I can find similar software for other models, please send me an email(adrian.midan@vivaja.com) or post a reply.

I also want your input and comments if I am on the right track. Is this the correct way to measure the power consumption, or you would like to suggest other methods?

Best Regards,

Adi

re: Power to the Smartphone

Venkateswara Rao — Mon, 27 Oct 2008 12:16:12 GMT

Mike,

Thanks for another interesting and informative article. A follow-up on PPC power consumption would be most appreciated.

Thanks,

www.smartphoneexchange.com

re: Power to the Smartphone

Karthi — Wed, 14 Jan 2009 07:39:25 GMT

thanks for the info.. but i assume a counter act will be there in future to keep the battery life not consumed too much while maintaining the same speed.

regards,

http://mobiletimes.in

re: Power to the Smartphone

montaser — Wed, 11 Feb 2009 20:27:49 GMT

hey plzzzzzzzzzzzzzzzz

i want to convert my htc p3300 to wm6

how? plz tell me step by step

and from where

re: Power to the Smartphone

Alex Atkin UK — Tue, 03 Mar 2009 18:04:17 GMT

That's interesting about PocketPCs basically turn off the main CPU.

I have my PPC set to not turn on the screen when it receives a new message. This greatly saves on the battery, but am I to believe then that once I have received a message the PPC will still be awake but with the screen off?

Theoretically it could drop back into standby as soon as the new SMS sound effect finished playing, but I cant really check that.

re: Power to the Smartphone

Narendra Choudhary — Fri, 20 Mar 2009 08:22:21 GMT

Hi Friends,

I want to start or develop small windows mobile application,

i have gone through MSDN library http://msdn.microsoft.com/en-us/library/bb158509.aspx and followed all sets to set development environment,

1. Installation of Windows XP SP2,

2. Microsoft Visual Studio 2006,

3. Microsoft .NET Compact Framework

4. ActiveSync 4.5.

5. Windows Mobile 6 Professional SDK,

but now i am unable to know that what should i do next to start develop a application for windows mobile...............

I am confused with following points...

1. In Visual Studio which type of project should i select ...

(e.g. Win console application for desktop development)

2. Should and how i link mobile SDK 6.0 and Visual studio 6.0....

Please help me in this topic ...

Please send a solution if u have on folowing mail id ....

nandu0007@gmail.com

re: Power to the Smartphone

Joshua Partlow — Fri, 20 Mar 2009 21:34:33 GMT

Hi Narendra,

Here is a quick walkthrough for creating a Hello World application on WM6 with Visual Studio 2005. There are probably simpler Hello Worlds, but it should get you started. http://msdn.microsoft.com/en-us/library/bb158524.aspx

If you have Visual Studio 2008, the process is similiar, but there are a few differences. Take a look at http://msdn.microsoft.com/en-us/windowsmobile/bb250560.aspx for more details.

Does that help?

Joshua