I noticed two things about the NFC reader on the N7
1) It only reads from the back of the device
2) It only reads when another device/RFID is about 1cm away or less
Is the NFC sensor movable/power adjustable? I want to move it to the front of the device, but also be able to read other devices from a farther distance (5cm?)
The idea is that tablet is embedded in a kiosk, people walk up to it and tap their NFC directly to the screen to interact
Not really. The antenna isn't very powerful. I tried using my NFC tags on the front but it would not work. I guess they assumed that you would be tapping the device onto the tag.
Sent from my Nexus 7 using xda premium
Perhaps a workaround...design a mount with a small opening behind the tablet, where people can "slide" their other nfc-enabled device back there to read
Related
http://www.amazon.com/NFC-User-Cont...UTF8&qid=1340664811&sr=8-28&keywords=nfc+tags
These look pretty cool. Pricey but may be worth buying for some.
Edit, what's cool is they are on/off switches.
http://www.tagstand.com/collections/nfc-kits/products/nfc-hobbyist-starter-kit-15-stickers
Much cheaper.
And for the 'neat' factor (including the same handshake and protection as those) there are things like http://www.remoteidentity.com/tag/mifare_s50_oval_epoxy_keyfob
No I think the tags I posted have an on/off switch built in, making them cost more?
Sent from my SPH-D700 using xda premium
Doubt its a switch, more likely squeezing it brings one (or both) of the induction coil wires in contact with the chip. seems like it'll fail after a while, and if you use one of the security tags (eg the keychain one) you get a TON more space to work with (8k) and standard, peer-reviewed security. For just over half the price.
(The fobs can't be read unless they have been paired with the reader, so its -more- secure than a button.. I can leave the fob laying around and know the data is secure.)
Edit: Technically it is a switch, but my point is you probably can't just turn it 'on' and wander off.. I'd be curious if anyone could find the patent application.
Disconn3ct said:
Doubt its a switch, more likely squeezing it brings one (or both) of the induction coil wires in contact with the chip. seems like it'll fail after a while, and if you use one of the security tags (eg the keychain one) you get a TON more space to work with (8k) and standard, peer-reviewed security. For just over half the price.
(The fobs can't be read unless they have been paired with the reader, so its -more- secure than a button.. I can leave the fob laying around and know the data is secure.)
Edit: Technically it is a switch, but my point is you probably can't just turn it 'on' and wander off.. I'd be curious if anyone could find the patent application.
Click to expand...
Click to collapse
Nice find though, Ill look into this further OP.
Can anyone with a Nexus 7 and an NFC enable Android 4.0+ device upload a quick video demonstrating Android Beam? I'd personally like to know where you'd need to place the phone in relation to the tablet to initiate the connection. With current phones, you seem to need to place them back-to-back. I'd hope this is not the case with the Nexus 7, as that's pretty cumbersome if you're trying to transfer from your own phone to your tablet.
Not the test you are asking for, but the Wikipedia entry says typically 4cm or less. Bit less than two inches.
No idea where the antenna is on the Nexus 7.
Yeah, hopefully the antenna is somewhere on the front of the device as opposed to on the battery like with phones.
Both side seem to work
It seems that you can use both sides. On the front above the camera and on the back. They use the front on in the demonstration in the NFC workshop at I/O.
http://www.youtube.com/watch?v=HkzPc8ZvCco - Google I/O 2012 - Up Close and Personal: NFC and Android Beam
around the 8:30 mark
I have also seem break downs of the device and there seems to be a blank spot there for a nfc pass through as nfc dose not work through metal.
I was having problems too but I just got it to work. The antenna on the N7 is at the top left if you're looking at the screen. I had to hold my gnex so about half of it was above this corner. I was able to do from tablet to phone and phone to tablet successfully
Hi, anyone of you using NFC tags?
I bought some and don't know if they are working correctly...
My tags are only found when they touch the back glass - when there is a little spacing they don't work! Whey I use the plastic phone protection (less than 1mm thick) the tags are not detected any more! (maybe once in 100 attempts)
What distance do you reach?
Is there a possibility to increase the range?
What part of the back are you touching? The antenna is right between the LG and the Nexus. http://guide-images.ifixit.net/igi/yapggXkL1qUdlt3J.huge (The black sticker)
It works fine with my dixtronic. That covers the glass too.
I believe NFC has a maximum working distance of 1.5 inches.
AW: NFC distance
1.5 inch are about 3.5 cm - I don't even get 0.3 cm!
It is independant of where I put the tag - believe me, I tried it everywhere on the phone...
So you manage distances of several cm? Then I must have bought bad tags...
AW: NFC distance
Once more:
- What tags are you using?
- What distance between Nexus 4 and tags is (really) possible?
I'm having this same issue and this thread came up in Search so I thought I'd revive it instead of making my own thread.
I am using two different NFC stickers as my test. One is actually stuck to my desk at work, the other is still on the wax paper it came on. I can only get the movable sticker to read, and that's only when I touch it to the back of my Nexus and slide it down. Once it reads, I set it down on my desk to act like it's stuck (in case the one that is stuck there is bad) and I can't get it to read. I even set the phone down on it, nothing. I hover a millimeter above the desk and slide it down the phone and I get nothing. When I lift it back up and touch it to the back and slide like before, it reads. Why is my range SO small? How is it not reading the stickers when they're horizontal on my desk? If it matters at all, I bought the stickers from the people who made NFC Task Launcher app.
Well - to be honest, I do not use them anymore...
BUT: If you try "NTAG203 168 Byte" or "NXP Mifare Classic 1K" or "NXP Mifare Ultralight C 192 Byte" (the best one) you can reach far more distances (up to ~2cm) - then it works though the Phone-Cover and some mm more plastic without any problems.
Ok I did more messing around and found out what was wrong, I'll post in case anyone in the future finds this thread.
After doing more experiments, I found that I could lift the phone up, and lift the sticker up and it would read the sticker from a distance of around 2-3cm. I tried doing it horizontally and vertically, in case for some random reason, my phone's NFC wouldn't read horizontally. It worked when off the desk, but as soon as I set the sticker back down and tried to read it, nothing. After pondering for a bit, it hit me. My desk is basically all metal. I didn't really think of it because most of what I see is "wood", but upon further investigating I found out it's just a thin covering of some material that looks like wood on a full-metal desk. After 1 Google search, I find out that metal can interfere with NFC signal, which is why I couldn't pick up my tags on the desk.
Sure enough, put the tags on a small stack of sticky-notes and my phone read it from about 3cm above the tag. Problem solved. Man, that was frustrating. I was worried that my phone's NFC sensor was defective or something. I wasn't about to RMA and wait for weeks to get my phone back, I'd miss the thing too much so I'd just live with it. Well, that's not the case so great. Hopefully this helps someone in the future.
Oswald-Kolle said:
Hi, anyone of you using NFC tags?
I bought some and don't know if they are working correctly...
My tags are only found when they touch the back glass - when there is a little spacing they don't work! Whey I use the plastic phone protection (less than 1mm thick) the tags are not detected any more! (maybe once in 100 attempts)
What distance do you reach?
Is there a possibility to increase the range?
Click to expand...
Click to collapse
I've tried tried on a wireless payment card and my N4 can read it through 5mm of paper, any more than that it can't find it.
The problem may be with your tags, do you have anything else you can test it with like a wireless credit card or transport card?
I can't find much information on NFC readers on our MXP. Can our phones do this? I'm looking to copy an NFC card and keep that data on the MXP and then use that instead of the physical card, is this possible and how would I go about it?
Highly unlikely I think. I don't know if such thing exist even on other phones. But we can emulate that by getting an nfc sticker and stick it inside the phone back cover, while making sure that it is not within the phone nfc sensor detection.
Does someone know the location of the NFC antenna on the Nothing Phone 1?
I would say above wireless charging coil
This is my first phone with NFC so I need to get used to the reader placement. I get detections the most often in the bottom left quadrant of the charging coil (looking at the phone from the back).
I also have best luck when the phone is unlocked, but I've seen it detect my yubikey from sleep after I accidentally placed my phone on top of it. Can't reproduce the latter though.
I haven't really thought about it because it reacts every time I use Google pay. I don't have to move the phone around to "find the chip". That used to happen on my old phone.