i would like to ask the experts if i can do this combo on the nexus 7-> USB OTG+ Wifi ALFA with high power/long range antenna, if so i will buy the nexus 7 immidiately , as a replacement for my aging laptop...
Well... USB otg is possible. I'm not a real expert so I don't know what you mean by Alfa WiFi.
Sent from my Nexus 7 using xda premium
---------- Post added at 10:24 PM ---------- Previous post was at 10:19 PM ----------
Looked up some images of Alfa WiFi. It's an USB WiFi adapter, right?
Why don't use normal WiFi?
Sent from my Nexus 7 using xda premium
Here is the pic fornthe wifi device
Sent from my Nexus S using xda premium
@Mario
You gonna try to do 10dB better than this guy??
bftb0 said:
@Mario
You gonna try to do 10dB better than this guy??
Click to expand...
Click to collapse
its not that i want to beat anyone my friend , its just that its a reliable device , its just that this device can connect my laptop to a open wifi router from a very far location or overcome weak router signal too... very useful in my location. im asking if this is possible on a nexus 7 tablet. and if it is ill buy one maybe after the google I/0 ...still waiting for their announcements if there will be a new nexus 7 device.
The device seems to have a magnetic base, I don't know if you'll get trouble with it.
Sent from my Nexus 7 using xda premium
I don't know about the specific device compatibility, so I can't help you there.
But I can make a comment about long-range WiFi, having fooled with it a bit.
(My comment about 10 dB was due to the output power of the Alpha device being 1W; 100mW is the regulatory limit in lots of places... the OP in the other thread hacked his N7 so presumably he was at 100 mW transmit power even if his ERP was high due to +16 dBi patch antenna)
If it is for a fixed installation, you should prefer antenna directivity (pattern gain) over transmitter power for a number of reasons:
- Tx power doesn't improve Rx power, but antenna gain helps *both*. To put this another way, you need a good antenna to hear (Rx) a 100 mW router at distance anyway; because the antenna-to-antenna path is reciprocal, this means the router will also hear you (your Tx) just about as well, so the extra Tx power buys you little other than unwanted attention. (The only downside is that high gain antennas need to be pointed carefully; that's why I mentioned "fixed" installs)
- If the Fresnel Zone between your station and the router includes lots of other WiFi installations all their beacon traffic will pollute your channel - especially because your device will be blasting them at high power with Probe packets (which cause even more traffic in the form of probe responses). And of course, any stations on your channel will have their traffic competing with yours (causing your station to detect lots of collisions during Rx). The only way to improve this is to use a progressively higher gain antenna (a narrower beam lobe) so that fewer stations are in your primary beam lobe.
- The best way for you to get noticed is to blast a bunch of stations with excessive power - you should try to use the minimum power which still results in reliable communications. Not only that, but you mention an open router - meaning that 100% of your Tx traffic will be readable by unrelated stations in between you and the open router.
(Now having said all that, it occurs to me that you might be already using it with your laptop ... so you don't care about any of these considerations)
good luck!
To answer the original question, the external wifi will work with the n7, provided that you are running a kernel that has been compiled with the needed drivers. Check the "pwn pad" thread in general section for a user named m4xxxed0ut. He has a kernel for this very type of thing. Not sure if your model is supported, but it is worth a look.
Edit: Here is a link directly to his kernel thread.
http://forum.xda-developers.com/showthread.php?p=40447183
Just looked and his kernel does indeed support your model.
Sent from my Nexus 7 using xda premium
rebel1699 said:
To answer the original question, the external wifi will work with the n7, provided that you are running a kernel that has been compiled with the needed drivers. Check the "pwn pad" thread in general section for a user named m4xxxed0ut. He has a kernel for this very
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
now this is very helpfull my friend. i know i lil bit of electronics and have rooting skills too so i can say i can handle this much of tech/hack. i love the nexus brand because of the brilliant people here in xda know how to use it in a more productive way. will buy the nexus 7 coz i think its more usefull to me in more than 3 yrs from now...thank you again for the help !
Related
Hi there
I found a BIG limitation in the SG II Wifi.
The problem is that: the Wifi class on the SG II is N but each time you try to put it online, getting a signal from your router, your MAX wifi speed connection will be ALWAYS at 65mb/s
(off course my router support WiFi N and i perform a check also on other routers from friends of mine having, finally, the same result)
Now i'm running the custom rom from LitePro (K8 kernel based) and this problem still there.
I presume it is only a software limitation and not an hardware limitation.
Can someone find a solution? Is it maybe necessary to modify the apks that make the Wifi work like we did with the camera sound?
Borg3D5 said:
Hi there
I found a BIG limitation in the SG II Wifi.
The problem is that: the Wifi class on the SG II is N but each time you try to put it online, getting a signal from your router, your MAX wifi speed connection will be ALWAYS at 65mb/s
(off course my router support WiFi N and i perform a check also on other routers from friends of mine having, finally, the same result)
Now i'm running the custom rom from LitePro (K8 kernel based) and this problem still there.
I presume it is only a software limitation and not an hardware limitation.
Can someone find a solution? Is it maybe necessary to modify the apks that make the Wifi work like we did with the camera sound?
Click to expand...
Click to collapse
Interesting. How are you calculating the connection speed?
@wifi-settings, click on the connected network and the shown mbit's will never be over 65... And in the app: overlook fing (nice network tool) will say the same.
Why would you need 600 Mbps on a mobile phone?
I have an dual N band router too but seriously on my phone I don't see the point of more them 20 mbps...
jaapschaap said:
@wifi-settings, click on the connected network and the shown mbit's will never be over 65... And in the app: overlook fing (nice network tool) will say the same.
Click to expand...
Click to collapse
Yes, exactly
Mew178 said:
Why would you need 600 Mbps on a mobile phone?
I have an dual N band router too but seriously on my phone I don't see the point of more them 20 mbps...
Click to expand...
Click to collapse
Why not?
If i pay a phone 600 euros and who made it tell me that the Wifi is N so i WANT a WiFi N because my money are real money, not charms
I a lot more concerned with battery life and wifi range on my G2 then how fast it goes
I noticed when I use G instead of N the range seems be increase.
Mew178 said:
I a lot more concerned with battery life and wifi range on my G2 then how fast it goes
I noticed when I use G instead of N the range seems be increase.
Click to expand...
Click to collapse
Unfortunatly i think that the battery problem is a tecnology problem: you have what you can have from this kind of tecnology, we can just make it a bit better but to have a reasonable time of charge we need a new kind of battery tecnology, compared to what the actual phone SLCD and Amoled screens ask to work .
Make sure you are on a channel without other APs.
To the OP, find an Android mobile phone that connects at a higher data speed than 65-72 Mbps and then come back with another dramatic thread.
Can you guys please do some research before making these dramatic threads?
Have u guys seen any difference in real life use ?
Forget about the numbers .
I always do video chats and works great.
Sent from my GT-I9100 using XDA Premium App
Borg3D5 said:
Hi there
I found a BIG limitation in the SG II Wifi.
The problem is that: the Wifi class on the SG II is N but each time you try to put it online, getting a signal from your router, your MAX wifi speed connection will be ALWAYS at 65mb/s
Click to expand...
Click to collapse
This is the expected speed of 802.11n on a small device.
QAM-64 modulation delivers at most 65-72Mbit/s on devices without MIMO. A cell phone will not have MIMO capability for cost and size reasons (requires several antennas).
No vendor provides MIMO wifi chips for cell-phone usage, so even if you tried you would get rotten battery life and a huge cell phone as the MIMO chipsets are designed for having mains power or laptop batteries, and the antennas need physical separation.
This assumes 20 MHz channel. 11n does allow for a 40MHz channel, but you will never get this in practice on the 2.4GHz band as the standard requires devices to look for interferers in the band and back off to 20MHz channel for a long time if they see any. Given how crowded the 2.4GHz band is you will always see interferers hence you will always be forced to use 20MHz channels.
Search for 802.11n-2009 on wikipedia. (I'd post the link but the forum will not allow it)
Nevermind wifi speed. I used to get good signal sat in bed with my sgs 1. With this one I get 1 bar or no connection at all. Sometimes if i turn the phone I get enough for it to resume a download.
Fair enough 1 bar gives suffient speed but it drops completely
I've tried playing with channels, changing n/g to just g etc but the signal is just weak. Nothing changed with my router, my old phone got 2/3 bar signal, my wife's HTC desire gets 2. The laptop full bars.
I'm hoping this will be fixed in a firmware update some time.
Shame cus otherwise I love this phone. (Although bit miffed with Yamaha instead of wolfsen sound, hope they release version with wolfsen. Or sgs3 )
Sent from my GT-I9100 using XDA Premium App
65mb is more then u need in a phone wouldnt you think plus range like other have said is more important
Borg3D5 said:
Why not?
If i pay a phone 600 euros and who made it tell me that the Wifi is N so i WANT a WiFi N because my money are real money, not charms
Click to expand...
Click to collapse
Well in theory you should get better range with n chipset (though some are reporting the opposite!)
So you pay more money to get N and with it better range and slightly better throughput than G ?
skibadee said:
Nevermind wifi speed. I used to get good signal sat in bed with my sgs 1. With this one I get 1 bar or no connection at all. Sometimes if i turn the phone I get enough for it to resume a download.
Fair enough 1 bar gives suffient speed but it drops completely
I've tried playing with channels, changing n/g to just g etc but the signal is just weak. Nothing changed with my router, my old phone got 2/3 bar signal, my wife's HTC desire gets 2. The laptop full bars.
I'm hoping this will be fixed in a firmware update some time.
Shame cus otherwise I love this phone. (Although bit miffed with Yamaha instead of wolfsen sound, hope they release version with wolfsen. Or sgs3 )
Sent from my GT-I9100 using XDA Premium App
Click to expand...
Click to collapse
Same with me. Witn iPhone 4 I had 2 bars and good connection, with SGS2 I am forced to switch off wifi and using 3G instead, because no more than one bar of signal and I can't open any web page. I just ordered Netgear WN3000 repeater and I hope it will help me to increase the signal, but I will have more antennas in my bedroom to frying my small brain
Manafa said:
Same with me. Witn iPhone 4 I had 2 bars and good connection, with SGS2 I am forced to switch off wifi and using 3G instead, because no more than one bar of signal and I can't open any web page. I just ordered Netgear WN3000 repeater and I hope it will help me to increase the signal, but I will have more antennas in my bedroom to frying my small brain
Click to expand...
Click to collapse
Same here!!!!!
I'm next to my router and I get 3/4 !!!!!
It's really a problem! I used to have signal in some areas, whereas now with GS II I get no signal at all
Manafa said:
Same with me. Witn iPhone 4 I had 2 bars and good connection, with SGS2 I am forced to switch off wifi and using 3G instead, because no more than one bar of signal and I can't open any web page. I just ordered Netgear WN3000 repeater and I hope it will help me to increase the signal, but I will have more antennas in my bedroom to frying my small brain
Click to expand...
Click to collapse
my experience is different from yours. I get slightly better wifi reception than my captivate with wndr3700 router
Sent from my GT-I9100 using XDA App
I don't think the graphical representation on the notification bar is important. I've got better reception on my G router than I have with my htc hero.
Sent from my GT-I9100 using XDA App
i dont see how this is such a big limitation. if youre gonna be that upset and nit picky about a device, then any phone u get thats worth any amount of money wont satisfy you.
They are both connected to the same network, but a speed test on my computer shows 10mbps while a test on my g2x shows 5.9mbps. Does anyone know why this is? Don't they use the same radio/wifi method? Why would one get more bandwidth than the other? Thanks in advance.
Is your computer actually connected by wifi, or is it using an ethernet cable?
Hi,
I have observed such behavior. These should be mainly because of cache differences between the devices. Also DMA access does matter when it comes to consuming data on a high speed interface. Wifi chips in phones are generally connected over SPI at 13Mhz which gives them roughly the speeds that you are getting.
Sent from my Desire HD
wolverine2k said:
Hi,
I have observed such behavior. These should be mainly because of cache differences between the devices. Also DMA access does matter when it comes to consuming data on a high speed interface. Wifi chips in phones are generally connected over SPI at 13Mhz which gives them roughly the speeds that you are getting.
Sent from my Desire HD
Click to expand...
Click to collapse
So is there no way around this? I was just curious about it, and decided to google it. I dont know much about spi @ 13mhz.
On newer phones, the WiFi chip is generally connected to SDIO. Hence the speeds are much better. HTC sensation is one such device.
Sent from my Desire HD
Wanted to revive this topic becasue I can not find any info on it.
Using my LG G2 at work, i am pulling only 12.81 mbps down and 14.43 up, while my computer is getting anywhere from 70-100mbps down and 70+ up.
Basically I am wondering if in general is there a difference between how a cell phones wifi connection speeds compared to a laptops or desktops? Should speeds be the same on both?
Is there anyway to bring it up?
I feel like this is the straw to tube analogy, your computer is 100x more powerful then your phone thus able to handle more bandwidth, if I'm wrong anyone please come through with an answer or correction
Sent from my SPH-L900 using xda app-developers app
A2CKilla said:
I feel like this is the straw to tube analogy, your computer is 100x more powerful then your phone thus able to handle more bandwidth, if I'm wrong anyone please come through with an answer or correction
Sent from my SPH-L900 using xda app-developers app
Click to expand...
Click to collapse
Shouldn't be a significant issue with the speeds the OP is talking about. If we were talking gigabit or greater I could easily see this being a factor.
Its simple, as much bw more power need to cast the signal. You probably could use a different kernel with more WiFi signal but I believe you will have to pay it with more battery consumption
Using Tapatalk GT-I9505
A2CKilla said:
I feel like this is the straw to tube analogy, your computer is 100x more powerful then your phone thus able to handle more bandwidth, if I'm wrong anyone please come through with an answer or correction
Sent from my SPH-L900 using xda app-developers app
Click to expand...
Click to collapse
+1
The wi-fi receiver found on mobile phones is weaker (both speed and signal stuff) than the computers' ones. It's natural. I've experienced the same thing, too. Also, the modem-router's load or the webpage server you're currently visiting affects the speed, just to mention it.
Phone versus PC over WiFi issues
Phones are limited in cache size, processor speeds and usable memory, and those allocations are also being used by the phone's system and display, lowering the data rate over WiFi for the phone to use, regardless of actual speeds, WiFi can only channel available data at a rate commensurate with the available memory. There is no free lunch.
PCs have far greater memory allocation sizes, higher bus speeds and more capacity and bandwidth availability for ancillary devices, such as WiFi, which do not chew up computer resources, and can be allocated strictly for WiFi usage.
The small amount of resources used by WiFi in the PC is of little concern since the data is then routed to either storage, display, or to external resources, such as HDMI video, or a USB flash drive.
Phones suffer from low power consumption, which means power reserves are not as efficient on such devices, whereas PCs do not have this issue, so there is little problems supplying a steady amount of current to the WiFi RF board, which maintains a far more level signal output, and an adequate receiver signal gain so your range will not suffer as it usually does when access is performed with the phone.
Batteries are in a constant state of discharge, which means the phones are always consuming power, and usually rarely connected to a constant source of current like the PC is(redundant).
Does anyone else have issue with the strength of the wireless radio on these. My signal is absolutely terrible. My phone gets better signal by A LOT. I am on the latest update not rooted.
Sent from my ADR6425LVW using XDA App
is the iconia slower than u r phone when surfing?
xceebeex said:
Does anyone else have issue with the strength of the wireless radio on these. My signal is absolutely terrible. My phone gets better signal by A LOT. I am on the latest update not rooted.
Click to expand...
Click to collapse
Yep
In my back yard, the A500 cant 'see' my AP but my HD2 can (albeit only 1 bar BUT it is still usable)
Yup mine sucks as well... much worse than any of my phones.
I even tried put a copy of "iwconfig" into /system/bin
and then downloaded "Wifi txpower" from the market.
This gave me some control over the power output of the wifi card.
Except that my card was already at full power, so it did'nt improve anything,
I can at least lower power to conserve battery now...
I think a hardware mod to the internal antenna is what is really needed, although I don't think it's been done yet...
What specific versions are you running?
I keep signal (3-4 skulls) outside my flat and in the lift for about 2 floors.
Nothing wrong with the antenna (located at the lower lt corner of the tab).
Moscow Desire said:
What specific versions are you running?
I keep signal (3-4 skulls) outside my flat and in the lift for about 2 floors.
Nothing wrong with the antenna (located at the lower lt corner of the tab).
Click to expand...
Click to collapse
What do you mean what versions am I running? I have the latest 3.2.1 running and the wifi has never been good. If I had known it was going to be this bad I might have returned it. I think I am outside my return window though since I bought it on Thanksgiving.
Sent from my ADR6425LVW using XDA App
Bad, has been bad, and always will be (in my opinion). I have several of these and they are worse than other models. I've tried several ROM's and they don't make a difference. So therefore, I've come to the belief that it's the hardware.
TD
timmyDean said:
Bad, has been bad, and always will be (in my opinion). I have several of these and they are worse than other models. I've tried several ROM's and they don't make a difference. So therefore, I've come to the belief that it's the hardware.
TD
Click to expand...
Click to collapse
That is what I was afraid of. I am not sure if I should try and sell this and get something else or just deal with it, but it is certainly annoying and makes it pretty useless when it can't pick up wireless.
Sent from my ADR6425LVW using XDA App
Are there any other tricks that might get the wifi working better? Can rooting and installing a different ROM help?
Sent from my ADR6425LVW using XDA App
aw crap, I was hoping for a software fix :/
My reception is abysmal. My laptop gets 4 out of 5 bars from my laptop, my crappy phone gets full bars of wifi, and my tab gets... 1-2 bars. It fluxuates from which way I hold it if I get any reception in the bathroom at all.
The first unit I bought had a defective Wi-Fi but was able to exchange it where I bought it for a functioning unit. Unfortunately, the new one is not spectacular but it does indeed work around my home, upstairs, downstairs and outside though the signal is pretty poor.
Must be a short or overly shielded antenna. My Droid X cellphone has excellent reception and three laptops have excellent reception albeit with multiple internal antennas.
Need to find an A500 tear-down online to see what it looks like inside to see what the antenna arrangement is. If it's somehow modifiable then it can likely be improved though you'll have to take it apart
Or search for a USB Wi-Fi that is usable with Android and this device!
Sounds like a design flaw to me.
qhorque said:
Must be a short or overly shielded antenna....
Need to find an A500 tear-down online to see what it looks like inside to see what the antenna arrangement is. If it's somehow modifiable then it can likely be improved though you'll have to take it apart....
Sounds like a design flaw to me.
Click to expand...
Click to collapse
That's what I was thinking.
Here's a teardown...
xxx.techrepublic.com/photos/cracking-open-the-acer-iconia-tab-a500/6279615?tag=nl.e101
xxx.techrepublic.com/blog/itdojo/acer-iconia-tab-teardown-easy-to-service-3g-ready/2861?tag=nl.e101
I think this is where the Antenna is located...
xxx.techrepublic.com/photos/cracking-open-the-acer-iconia-tab-a500/6279615?seq=47
I can't post links yet, so just replace the xxx with www
Yeah, that looks like it and it looks like it's strung out along the top in landscape (or right in portrait). It's a bit away from the edge of the case but not buried too deep. It looks like a standard antenna length as compared to a laptop. Interesting that it's weak. Maybe the WLAN card is just a crappy performer. I'll have to look up that part number and see what its specs are.
Seems someone found a fix.....
http://forum.xda-developers.com/showthread.php?t=1418875
~Sent from my Droid SuperCharge~
I just tested my a500 and HTC Rezound with wifi analyzer to compare and in the same location my rezound was at -40db and the a500 was at -65db so this is obviously a signicant issue.
Try setting the 11G channel number on your wireless router to something different. I had big problems with mine when the router was set to auto. I changed it to channel 6 and it started working great.
Not sure if the antenna is more sensitive to certain channels than others.
spike1969 said:
Try setting the 11G chann el number on your wireless router to something different. I had big problems with mine when the router was set to auto. I changed it to channel 6 and it started working great.
Not sure if the antenna is more sensitive to certain channels than others.
Click to expand...
Click to collapse
I doubt that is the issue since the channels are so close in frequency. Either way, neither my router nor access point are broadcasting on channel 11.
As announced, JB 4.2 will support miracast which allows display mirroring through wifi-direct. I don´t understand whether this feature require certain hardware, and my question is wheter this will work on my 16 GB Nexus 7 when it is updated to 4.2? Anyone know?
Tegra 3 supports it and it uses wifi direct so I'm confident it will be supported.
Sent from my XT910 using Tapatalk 2
I hope that's true. All the hardware indicates it is able to support it, but not necessarily that it will actually be made available. The Nexus 10 doesn't have the option for Miracast, despite having WiFi direct/Android 4.2.
I don't get what all the worry about will it support it. The only hardware thing necessary is does the device have hardware encoding, and this does. Yes the N7 has wifi direct but ANY device could be upgraded to support wifi direct. It's not like wifi direct is some additional hardware on a wifi chip. Any wifi could technically support wifi direct.
So I would be really surprised if this doesn't support miracast. From what I've read the hardware encoder has a big influence on latency (as does the cpu). So one question that I would like answered is, how low is the latency? Movies/browsing etc doesn't really matter, but for gaming.
Has any article mentioned how low the latency is with miracast? This will vary from device to device of course, but even knowing for one device might give a ballpark of what to expect with the n7
I can't believe miracast is not supported by the N10! Mind boggling...
Sent from my SAMSUNG-SGH-I727 using xda premium
yes I just read that. Does it not have hardware encoding? The nexus 4 definitely has miracast enabled but not the nexus 10?!
Where is written that N10 doesn't support Miracast? I watched android developers hangout on YouTube a few days ago and if I remember correctly then they told both N4 and N10 support it. When someone asked about N7 they first told no, but then said they don't know for sure. Unfortunately YouTube is down, so I can't double check that at the moment.
Here:
Miracast is the Wi-Fi Alliance's standard for wireless streaming of video, and its addition to Jelly Bean made us very excited -- Android finally has a response to AirPlay. Imagine our disappointment, then, upon learning that Miracast isn't supported in the Nexus 10, at least not yet. It is there in the Nexus 4, a perplexing state of affairs that Google wasn't able to give us much clarity on, but it does appear that this is not a hardware limitation, since all the communication takes place over WiFi. If Miracast isn't going to be software-enabled in every Android 4.2 device then we're struggling to see how it's actually part of the OS, and we're definitely feeling let down about its potential to improve the platform as a whole.
Click to expand...
Click to collapse
'
'http://www.engadget.com/2012/11/02/nexus-10-review/
It's not like the nexus 10 ships with 4.1.2. It comes with 4.2 but yet miracast is disabled?! But he's wrong about pointing out wifi as the potential hardware limitation. Everything has wifi (and could potentially support wifi direct as that is done in software) the hardware barrier is hardware encoding. Does anyone know the details of the chipset the nexus 10 has?
Interesting... Cnet review says it is supported, but they didn't have a dongle to test it.
I believe even the Verge/Google video said it is supported, but again, I can't check that either at the moment. Why is YouTube down when you need it the most?
Does anyone know if Miracast supports audio only? I know that it supports audio and video, but what happens if I want to connect it to my AV receiver and use it for audio only?
Edit: YouTube works again. http://www.youtube.com/watch?v=Z92fwFQntG8 at 56:30 they say that both devices have HDMI and Miracast.
I think the software in review devices wasn't final. Some N10 review devices didn't have user accounts either, but the final software clearly will have that, so I believe its the same case with Miracast.
Does anyone know if Miracast supports audio only? I know that it supports audio and video, but what happens if I want to connect it to my AV receiver and use it for audio only?
Turn off your display and you have audio only
Sent from my SAMSUNG-SGH-I727 using xda premium
WalkSoftly said:
Does anyone know if Miracast supports audio only? I know that it supports audio and video, but what happens if I want to connect it to my AV receiver and use it for audio only?
Turn off your display and you have audio only
Sent from my SAMSUNG-SGH-I727 using xda premium
Click to expand...
Click to collapse
That's what I want to do, but is it possible? Does the Netgear ptv3000 work if it's not connected to TV?
It is possible that it doesn't allow connections from android device if its not connected to TV. For example Nexus Q doesn't allow streaming YouTube to it if its not connected to TV.
I'm thinking it should bypass through the a/v receiver but I am simply speculating... it's going to be one of those things we will have to test with or a/v systems
Sent from my SAMSUNG-SGH-I727 using xda premium
I would buy and test it but I can't I can't find this product in any shop in Europe. And US shops that have it in stock don't ship to Europe.
I'm in the u.s. and I will buy it once the 4.2 update and miracast are official for the N7. Then, I will report back with my findings on how the netgear miracast box interacts with my a/v receiver.
I'm so pumped for this feature!
Sent from my Nexus 7 using xda premium
I never thought about audio only. One thing I hope is possible is to turn off the n7's screen but still stream. It's one thing if you are interacting with it, but say you are streaming a movie, why have the n7's screen on for 2 hrs? Or even a game where you are using a gamepad and you aren't touching the device at all.
I've wondered if that functionality is in the spec, but I doubt. The other thing I wonder about is how low the latency is for gaming.
I found a US store that has it in stock and ships internationally. Only bad news is that shipping costs more then the device :| I'm not sure I want to pay that much for it.
About games, I have no idea if the screen can be off when streaming, but I hope so. One interesting thing that was discussed in Google developers hangout was a api that let's app developers use the two screens (tablet and connected display) as separate displays. For example the game runs on TV while your android device has buttons or whatever else on display.
Always wanted a Android Mini PC to use on my living room TV for quick streaming, browsing and possibly for XBMC. With my interst growing and XBMC getting very stable on Android I went for the Tronsmart MK908. I assumed based solely on the model number that it was a better MK808... still not sure it isn't, but anyway.
First thing I did was instal Finless 1.5. Looks great on my 60" Visio in 1080p. Lodaded a decent build of XBMC but the damn little thing overheats and shuts off. Lasts about 10-15 minutes tops once XBMC is running. I've got it plugged in to the TV's USB port for power.
I con't get a bluetooth keyboard to work with it. It pairs but the keys do nothing. (Kensington Slimblade Bluetooth model)
Running in 720p doesn't help with overheating. This thing gets HOTT. Were my expectations too high for this little device?
It feels like more of a experiment or tinkerers toy. I've seen others gut it and add bulging heatsinks, adding fans, changing the enclosure (liek a cigar box with fans etc) and to me these changes completely defeat the purpose of a small hdmi dongle sized android pc and makes the clunky hard to transport.
Thoughts?
Remember these things are built to a price. But you should still expect a decent level of functionality. I suggest under clocking it and put fans on it in a different case. A case of buyer beware if there are a lot of devices like this. Research and gather others opinions on these devices prior to purchase...
Sent from my Nexus 4 using Tapatalk 2
You should try a different power supply. Received wisdom is that cheap ones that come with sticks often cause freeze or shutdown because of the dynamic current load. Use a name-brand one with 1.5 amp capacity or more if you can, but even a 1 amp phone charger will probably be more stable than the included charger.
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ragesoss said:
You should try a different power supply. Received wisdom is that cheap ones that come with sticks often cause freeze or shutdown because of the dynamic current load. Use a name-brand one with 1.5 amp capacity or more if you can, but even a 1 amp phone charger will probably be more stable than the included charger.
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You are right man the only problem that i see here too is the power supply, a usb port on the tv usually outputs only 0.5 amp while the minimum for this quad core is 2 amp. It might work with a good 1 amp power supply but only for main tasks but if you want to see movies in full hd or play games you'll need a lot more than that.
Agreed. Use the included power supply. It's packaged for a reason.
scootincivic said:
Agreed. Use the included power supply. It's packaged for a reason.
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actually most chinese minipc sells with extremely underpowered power supplies, they write "2A" or such on them but if you test them they really are just 0.5a or 0.75a
as for tv you shoud check your tv manual, some have low power usb ports that are rated only for usb memory sticks, others have powered usb ports rated for unpowered usb hd.
only the latter kind can juice a minipc - sometimes TV have more than one usb port but only one is hd-rated.
Yeah, I suggest throwing away the included supply. One thing recommended on Freaktab is to buy a PSVita charger (1.5a, ~$10 on Amazon). You have to cut out a bit of plastic for regular USB cables to fit. I got one recently and have had no freezes or reboots since on my mk808b.
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NixZero said:
actually most chinese minipc sells with extremely underpowered power supplies, they write "2A" or such on them but if you test them they really are just 0.5a or 0.75a
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.
Not starting a war here however that's very true true & customers must be aware of this. However I must of been one of the lucky ones as my adapter is pushing 2Amps at 5.1V +/-.5...
Hell I dished out almost a bill for this device the least we can all receive is hardware that's correct from our supplier..
Agreed towards the powered USB within tvs.. Highest Amp rating I seen was on a Samsung model & that was only pushing 1.34Amps.. Nor was it constant as the Amp readings would fluctuate during input presses via remote or on the telly itself via hard key.
Power blocks are key & this device needs every little bit of at least 1.5Amps & even at times that's not enough..
I had a similar issue with my 908. I didn't use the one that came with it because the metal contact on the usb port looked was rusted.
Instead I tried the adapter for my Nexus 4, which is supposed to be a 5v 1a / 2a variable but it froze playing Captain America on Netflix.
I then tried it with my old Nexus 7 [Tegra 3] adapter which is a 5v 2a and it worked perfectly - played the entire movie, no issues (at 1920x1080p @ 60fps). In essence, I do think that whoever buys this stick needs to pick up a 5a 2a solid - no variable chargers. Also, I'd highly recommend not bothering with the wifi on it. Grab a 10/100 or 10/100/1000 ethernet stick and use that.
Good Luck.
xbmc overheating
I have read that XBMC has no hardware acceleration on those RK... processors. You need to use alternative video player like MX Player or BS Player.
latest nightles have libstagefrigt hw accel integrated and its working quite good on rockchip devices.
lewy20041 said:
latest nightles have libstagefrigt hw accel integrated and its working quite good on rockchip devices.
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Got a link?
http://mirrors.xbmc.org/nightlies/android/
What were ur initial expectations btw?
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---------- Post added at 05:23 PM ---------- Previous post was at 05:16 PM ----------
butirog said:
What were ur initial expectations btw?
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My bad didnt get the first page. We used to sell something with a unit with the same specs they are right your power source is not providing enough juice. Especially ur using a tv usb that usually have 500mA. Try getting a usb charger thats got at least 2A. And android sticks nirmally runs hot though.
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lewy20041 said:
latest nightles have libstagefrigt hw accel integrated and its working quite good on rockchip devices.
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I've tried these nightly xbmc versions months before. It is hw accelerated, because, instead of xbmc' it uses mx player for video playing.
So, it means, you can use mx player directly, you get the same reaults.
But i prefer vondershare player. But it has problems with subtitles.
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The nightlies didn't have libsf very many months ago, though libsf alphas were in the nightly directory. Now all nightlies have libsf support.
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Power Supply/Charger
People who posted "Get a better power supply/charger", which 2amp charger would be ideal?
All main issues (reboot and/or shutdown) are related to the power supply, it's a matter of fact the shipped power adapter sucks.
Some people advised to get the Ipad one, any 2/2.4A one will do the job: http://www.ebay.com/itm/Genuine-OEM...ader_Chargers_Sync_Cables&hash=item3f264c673d