Hi,
I need to supply stable energy to a NFC-powered chip card that doesn't send any data of any kind over the NFC field.
The problem is that, when NFC enabled, the Nexus S only provides a pulsating NFC field : every 0.1 second (or even less), the NFC field is turned off for 0.1 second before it restarts.
So the goal would be to build an application that goes deep enough in the phone's settings to modify that pulsation and provide a stable field (or at least longer pulses).
Do you think this might be possible in a non-rooted phone?
In a rooted phone? Maybe using CyanogenMod as mentionned in an Internet article called "Uncovered: The hidden NFC potential of the Google Nexus S and the Nokia C7"?
Or do you think this won't be possible unless we have access to the Samsung firmware?
Thanks,
Gildas35
I get further in my researches and I am now sure that I can't modify the NFC field pulse in neither SDK or NDK.
So I am now browsing the Android source code (on that website: grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android-apps/4.0.3_r1/com/android/nfc/NfcService.java?av=f) to find where should I modify it.
But more and more I believe that it should be in the C part of the source code, not in the Java part. Especially in the libnfc layer?
Do anyone knows where I could find such a file?
Thanks,
Gildas
Ray Maker of DC Rainmaker on Twitter reports ANT+ is coming to the Samsung Galaxy S4 through an October Firmware update and will be supported on all flagship devices going into the future
dcrainmakerblog
"We will support ANT+ in the Galaxy S4 in a firmware update coming in October" - Samsung (at the ANT+ Symposium)
dcrainmakerblog
"We do plan to support ANT+ on all of our flagship smartphone devices in the future" - Samsung (at the ANT+ Symposium)
Ray now has a blog post about this:
http://www.dcrainmaker.com/2013/10/samsung-mobile-devices.html
Particularly for anyone with sports data tracking devices this is huge news! Not to mention ANT+ is pretty simple to implement now with the new Plugin services they're bundling with the Note 3 right now
ANT also allows you to build really neat wireless topologies as well if your into that stuff, plus it supports full multicast as seen on DC Rainmaker:
http://www.dcrainmaker.com/2013/09/curiositysurvey-different-cycling.html
A little background on ANT and ANT+:
ANT is a mature ultra low power wireless protocol running on the 2.4 GHz band like WiFi and Bluetooth. Bluetooth Smart is a protocol similar to ANT but architected around Bluetooth style bonding/pairing with several connection layers and services.
ANT is a compact and flexible protocol, allowing virtually any type of wireless network topology to be created. ANT transmitters automatically manage coexistence and divide the RF channel they are transmitting on into timeslots, which means any number of receivers can listen to an ANT device, excellent for gyms, training areas, anything which requires a large number of transmitters, as ANT can handle potentially hundreds of devices transmitting to an infinite number of receivers.
ANT+ is a set of interoperability specifications called "Device Profiles" which means devices which use them are able to "talk" to one another. ANT+ has reportedly shipped in over 60+ million devices globally, predominantly in Sports and Fitness (Adidas miCoach, Garmin Watches, Running Sensors, Heart Rate Straps, etc).
Why does this matter?
Right now, it only matters if you're into any type of sports or fitness training, or if you have an idea which requires 600+ transmitters communicating to XXX number of receivers simultaneously. As a nice bonus, any ANT+ device is compatible with any app as long as it's certified.
For developers
The ANT+ API appears to be much simpler to implement than the BLE API. The ANT+ API already handles device discovery and decoding of data events from sensors into the useful data without even reading the Device Profile. You just request access to heart rate, cadence, etc, and then subscribe to the event handlers which pass the data to you decoded. The BLE API still requires a lot of work to do the decoding properly, handling characteristics, etc
ANT+ Plugin API - Supported from Android 2.1+
http://www.thisisant.com/APIassets/.../plugins/antplus/pcc/AntPlusHeartRatePcc.html
BLE - Officially integrated from Android 4.3+
http://developer.android.com/guide/topics/connectivity/bluetooth-le.html
Some Apps which include ANT+:
-Google My Tracks
-Endomondo
-Sportstracklive
-Garmin Fit™
-Run.GPS Trainer UV
-IpBike, IpWatts, IpPeloton, IpSmartHr
-Selfloops
-SportyPal
-MapMyFITNESS/RIDE/RUN/WALK+/HIKE/DOGWALK
Directory of Certified Devices
http://www.thisisant.com/directory
How will it help us exactly?
fuser1337 said:
How will it help us exactly?
Click to expand...
Click to collapse
Right now its used mostly in sports and fitness although some of those device profiles they've implemented are branching into things like remote control like the O-synce bike handle bar remotes. They submitted patches for Apollo but the developer's busy with other features ATM.
sounds like bloat..
dannyella said:
sounds like bloat..
Click to expand...
Click to collapse
It depends on how you use your phone.
For fitness addicts like me, that is good news.
In general, there are different protocols to transfer the data from your heart rate belt. Most devices for home use like spinning use the ANT+ - protocol. Others use the Bluetooth 3.o 0r 4.0 protocol.
BT 4.0 LE (Low Energy = battery saving) is implemented to Android 4.3. I am guessing that it is the same with ANT+.
Benefit for Android-users: You can use your heart rate belt that you use with your home device also with your Android phone
I use ant to build my projects.. lol..
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Great news! Any reference?
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it's an interesting move for Samsung to make. Considering they and their competitors are bringing out smart watches using bt4 and android 4.3 standardising bt4 api. It was starting to look like ant+ was going to lose the smartphone market. Perhaps they cut a deal with Samsung
Infy_AsiX said:
it's an interesting move for Samsung to make. Considering they and their competitors are bringing out smart watches using bt4 and android 4.3 standardising bt4 api. It was starting to look like ant+ was going to lose the smartphone market. Perhaps they cut a deal with Samsung
Click to expand...
Click to collapse
Honestly, Ill believe Ant+ inclusion when it actually happens. BT4 smart has started to catch on with cycling manufacters, both Topeak (currently) and Wahoo (soon) will be able to use bt4 smart sensors soon. I saw a S4 at Interbike hooked up to a BT smart heartrate monitor and speed/cadence sensor.
This was big news to me, as for a long time without a dongle (super annoying) there was no way to use an Android phone with speed/cadence sensors or heartrate monitors, unless you had a sony.
If Ant+ doesnt pick up soon, its going to be left behind. Android including BT smart in 4.3 is going to change the field for newer phones.
I too would like to see some documentation/references about Ant+ inclusion.
-Bicycle Industry Professional
After flashing the 4.3 leak i noticed some ANT library packages in the 'installed packages' list.
I found the app "ANT+ Demo" from the app store and it is reading my ANT device! It's already working!
It is working with an ANT+ development kit i have here on my desk, haven't tried it with any official devices yet.
I do have ant+ and some ant plugins installed on my note 3. Factory untouched android 4.3
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Subscribing
jorgenmk said:
After flashing the 4.3 leak i noticed some ANT library packages in the 'installed packages' list.
I found the app "ANT+ Demo" from the app store and it is reading my ANT device! It's already working!
It is working with an ANT+ development kit i have here on my desk, haven't tried it with any official devices yet.
Click to expand...
Click to collapse
What "4.3 leak" did you flash? Can you tell us the rom? Can we have some links/references? Where do I get the packages so I can bribe some S4 cook to bake it into some rom? (or am I missusing the term?)
I use ANT+ to upload my running activities from my garmin watch to the garmin website. As the watch can only comunicate via ANT+, I either have to have a PC around or, when in holiday or somehting, I have to use a micro usb otg adapter and connect the ANT+ dongle to my samsung s2 using an app called garmin-uploader (along with a coupple of ant+ services found on google play).
There is something that I don't quite understand here.
Does this mean that these devices listed (s4 and s3 I believe) were already shipped with ANT+ capable hardware?
ANT+ was therefore already possible on them by using the ANT+ radio service available on google play without the need of an ANT+ dongle right ?
If not, and the hardware has to be enabled somehow with a propretary driver of Samsung, how about the Samsung S4 Google edition? Those don’t have a Samsung customized ROM but a google vanilla Android right?
Also, DCrainmaker wrote a post about the matter :
http://www.dcrainmaker.com/2013/10/samsung-mobile-devices.html
I see the lack of balls in Samsung to not include the S4 active to get ant+. It's worth pointing out amoled screens are organic and have their life degraded by heat as well as UV light.
there's some photos posted a couple times on xda forums where someone bought a store display s3 or note 2 that had the original screen sticker decals shadow burnt into the screen. In fact it was the rest of the screen that was exposed to the light that had degraded. The sticker decals had shaded the screen and not degraded some parts leaving their shape visible on a white screen.
I suppose it doesn't matter for indoor sports at least...
here's a couple of examples a quick Google search pulls up
forum.xda-developers.com/showthread.php?p=39910331
forum.xda-developers.com/showthread.php?p=34705628
?????? Galaxy S3 ??????
this thread needs a *BUMP* !!
Has anyone checked if ANT+ his working in the I9505XXUEMI8 leak?
http://forum.xda-developers.com/showthread.php?t=2465713
It is showing running for me under running processes. Doesn't seem to make any difference to me though
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bennetski said:
It is showing running for me under running processes. Doesn't seem to make any difference to me though
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Click to expand...
Click to collapse
Do you have any ANT+ equipment to test with an app? (Believe endomondo supports ant+ HRM)
Considering updating to the leaked firmware, but the whole KNOX thing is making me a bit reluctant...
Unfortunately I don't have any supporting equipment. I am one of the lucky ones to have got the leaked 4.3 without getting knox installed but I wasn't really bothered even if I did. It's just a warranty void. It's actually very hard to brick an S4.
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Great news. Another 10 or more MB spent on software which is dedicated to communicate with specific hardware, and if you do not have such, it will be silently running in background consuming the battery and memory.
I have advice foe Samsung: guys, please do not forget about the dedicated BT controller to very common equipment like Boeing 737 or Airbus series 3 (310, 319, 320, 330, 340 380 etc.).
These planes are really popular nowadays and each pilot would really appreciate if he could for example control the flaps while playing Jewels
I'm excited about the possibility of ditching a phone all together and using my watch as my cellular device. Obviously there are some limitations (won't be able to snapchat, so sad), but I'm okay with that! I think this watch might come close for my needs. I need to make calls, text, check email, use maps, and a password manager app (e.g. KeePass) would be nice.
What do you think?
For me the dealbreaker is the difficulty of text entry for replying to messages. Maybe the larger screen would help with that. TouchOne keyboard is supposedly coming to the Gear soon, but I don't know if it will work with stock apps or not.
What I would love is the ability to switch the Gear to a new phone easily. Then I could swap my SIM card into a smaller phone when I don't want to carry a Note around (I have a Galaxy S4 mini that is easy to carry discreetly).
I think the problem with smartwatches is that they try to do too much and don't do anything very well. For most folks, they have no compelling use. The S3 has the ability to breakthrough if well executed, on two accounts: Samsung Pay with MST and a standalone phone.
Mobile payments haven't gained widespread popularity because of poor implementation. Taking out our smartphone is arguably not more convenient than taking out our wallet. Being able to pay with the watch on our wrist is unquestionably a superior form factor, if it works on the vast majority of existing POS terminals. Samsung's proprietary MST holds the promise of being able to do that.
As I grow dependent on my smartphone to perform an increasing number of functions, the inherent compromises of a single form factor become more apparent. I can achieve greater efficiency by devying tasks amongst the best suited device. My ideal setup forgoes the smartphone in favor of a standalone smartwatch and tablet.
Tasks where accessibility is paramount; want ultimate convenance. Ideal size: small as functionality possible. Ideal proximity: on my body. Best form factor: watch
- Phone calls
- Notifications
- Time/date/weather: preferably instantaneously
- Play audio
- Nice to have: GPS, body monitors, calendar, timer, calculator
Tasks performed at will; want productivity/utility/capability. Ideal size is 7-9" screen. Ideal proximity is in the vicinity near me (ie. car, room). Best form factor: tablet
- Reading: email, web, etc
- Input
- Camera
- GPS
- Run apps
- Nice to have: telephony capabilities
I share the concerns about text entry, especially because I have big fingers. but I have really gotten used to the keyboard on my Gear S2 Classic 3g. And the upcoming TouchOne keyboard looks really impressive.
My main concern about a daily driver is again battery. i use navigation alALOT. And while the Gear Navigator standalone app works great on the Gear S2, but eats battery at the rate of about one percent a minute. I have read about the updated Here app, which will store offline maps to reduce data radio use, but using the gps, cellular radio and display is a battery killer. That would make getting through a whole day very tough, even with the larger 380 ma battery.
foobared said:
I'm excited about the possibility of ditching a phone all together and using my watch as my cellular device. Obviously there are some limitations (won't be able to snapchat, so sad), but I'm okay with that! I think this watch might come close for my needs. I need to make calls, text, check email, use maps, and a password manager app (e.g. KeePass) would be nice.
What do you think?
Click to expand...
Click to collapse
On my S7 I was able to start a couple of hidden activities using Quick Shortcut Maker; I looked around for them but nobody talks about them; there are "just" the sources:
https://insight.io/github.com/andro...ges/SystemUI/src/com/android/systemui/tv/pip/
On my Samsung S7 with Android 7 these activities are available:
PipMenuActivity - three buttons appear: fullscreen, close, pause
PipOnboardingActivity - a remote control image appears
PipOverlayActivity - nothing happens
Any idea about how to access "properly" such activities from onboard native apps/options?
IR blaster
hi, I was bored scanning the forum saw your post and decided to respond . the galaxy s series beginning with note 3 are equipped with an ir blaster. It does what it sounds like it does lol. Anyway my note 4 came loaded with a smart remote app (once again does what u would think it would do lmao) Works with my ac, TV , stereo and I believe it would work with any non encrypted ir receiver using the 2.4ghz band (obviously Xbox and the like are a no go)I think this might be the tool to access the above mentioned activities you came across while exploring your s7 services/activities.
Hi
Please be gentle with me if this has been covered somewhere, I've searched high and low and been unable to find an answer...
There is a free app available on the playstore (made by a large home automation company) which I have downloaded on both an android phone and tablet. The app is missing one specific function on the tablet which is available on the phone, this is "intercom" functionaliy. According to the developer, this is by design - this is intended to promote their own hardware product for this task (also an android touch screen interface). However, I cannot afford to buy their device ($$$$s) and would like to have the app pinned and running on a cheap tablet. This works fine, apart from the lack of intercom.
The intercom function is a voip service and does not require a cellular connection, only a camera, microphone, speaker and network connection. I have proved this by turning off mobile data on the phone and can simulate the functionality on the tablet by using a seperate voip app and registering the tablet on the voip network.
My question: From my research it would seem likely the app is using the display size / resolution, "telephonymananger" or a combination of both to enable / disable the intercom function depending on the device type. Is there a way to circumvent this? i.e. is there a way to emulate a different screen size & property in telephonymanager? Ideally I could do this on a 10" fire HD tablet 9th / 11th generation, but if there is a similarly cheap tablet that would be much easier I would be willing to invest in that.
Grateful for any answer, advice, or direction anyone can offer.