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Closed 6 years ago.
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I have 3 heos speakers in my house and a 4th wireless (wifi) speaker that I built myself. I was wondering if anyone else has tried tinkering around with the heos app to make it detect other wifi speakers and play music to them?
I tried using dlna to get my logitech/squeeze boxes and heos speakers to play the same music, which worked but there was a significant delay between the two systems that I couldn't correct with the squeezebox software settings.
Right now the only way to hook up to existing speakers is with a HEOS Link, but that is a pretty large and costly device. It would be great if Denon created a playback-only HEOS dongle that with a line out--call it a Linklite. It wouldn't necessarily need to be able to do everything a normal HEOS device does, at a minimum it would just play what is played to your other HEOS device(s). But nearly all wifi speakers have a line-in jack, even Sonos. It would be kind of cool to be able to easily add third party components in this way.
Wishful thinking: if HEOS becomes a more popular home entertainment operating system, perhaps vendors of the other products will embed the software required to be compatible with HEOS.
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Closed 1 year ago.
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I try to connect the iPhone X app - Live Link Face with UE4 but I have a problem. I connect everything from the tutorial and from Epic docs but still have a problem. Live link subject name doesn't recognize my iPhone device. I put the IP address from my pc in-app but noting.
I'm using Windows 10, Face AR SAMPLE - default project from Epic Games - Learn category for Live Link Face app.
I was encountered the same problem in windows 10 until I changed my network profile from "Public" -> "Private" and then live link recognized my iPhone all in sudden!
I just got it to work after trying for like 5 hours, haha
Here are some things that helped:
-Windows 10 turning Firewalls off
-Public connection --> Private
-the IP address on my phone was slightly different than the one on my computer, even though both were on the same Wifi connection. On my phone/Livelink app, I entered in the IP address of my computer.
-on my computer /Unreal, go into Edit>Project Settings>UDP Messaging and then enter in the same IP address under "Unicast Endpoint" with :0 at the end
I also tried adding in :11111, i cant remember which worked haha
good luck!
I turned off the firewall on the private network
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Closed 2 years ago.
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I am trying to determine the direction of an audio signal using the microphone on an iPhone. Is there any way to do this? As far as I have read and attempted, it isn't possible. I have made extensive models with keras and even then determining the location of the sound is shaky at best due to the number of variables. So not including any ML aspects, is there a library or method to determine audio direction from an iOS microphone?
No, in general it shouldn't be possible (Even with machine learning)--you need at least two points (and excellent timing) to determine a direction. You MIGHT be able to do something with multiple iPhones, but that would require very tight timing and some learning to determine where the phones are in relation to each other--and I doubt such a library already exists for the iPhone (existing libraries could be ported/adapted though)
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Closed 7 years ago.
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This question pops up in my mind as in many developing countries at present internet connectivity is very poor or no connectivity at all and the customer base is very huge, in this case how IoT can help in making life easy?
There are currently a few projects going on whose purpose is to provide an affordable Internet access for people in poor areas:
https://en.wikipedia.org/wiki/Project_Loon
https://en.wikipedia.org/wiki/Internet.org
https://en.wikipedia.org/wiki/Outernet
There are also technologies such Wi-Fi Direct that do not require presence of a centralized servers.
Lastly, as others said, IoT developers will have to deal with lack of connectivity and design their software accordingly.
You could even go a step further, many machine-to-machine solutions will have incredibly low bandwidth. (Take for example LoraWan which would be extremely suitable to roll out in developing countries).
So, being in a developing country or not, you are stuck with networks and devices that have to deal with low bandwidth anyway. This means that the developers creating the software for your devices need to think very well about how they solve certain type of problems.
A lot of devices currently also have to deal with situations where there is no connectivity at all. For example a tracking device in a container on a ship.
This device should be built in a way, that it will function without a proper internet connection.
Conclusion:
IoT devices can work with low bandwidth connections.
Development should be done with the idea of non-connectivity in mind.
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Closed 8 years ago.
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For my current project, I need to read the status of a digital ON/OFF input (0Volt or 5 Volt) from iPad.
I need to do this by bluetooth becouse the iPad needs the 3G connection to contact some web services in internet and this prevent me to use a WIFI module.
I read that exists some module like
RN42 ( https://www.sparkfun.com/products/retired/10253 )
or Bluegiga ( http://www.bluegiga.com/ )
but I can't find some example in internet to do what I need.
I need an help to understand what is the best and cheaper hardware that I must buy, and, most of all, I need of some example of code (xCode) for connect my iOS program to the bluetooth module for get the status of my external digital input.
You have a number of options for doing this.
Join the MFI program and either read the input via a physical connector or via Bluetooth.
Use Wi-Fi. Probably easiest in terms of programming but requires more expensive hardware (and maybe more complicated installation)
Use BLE (Bluetooth Low Energy) and CoreBluetooth. Cheap, easy to use.
As you have already suggested, BLE is an easy way to go that doesn't require joining an expensive program. The Bluegiga chips are excellent in talking with an iOS device (I have personally tried the BLE112 device) and they are easy to program, comes with their own microcontroller etc.
To start on the iOS side, you need to read up on CoreBluetooth. Apple has in general excellent documentation about this framework.
I would recommend starting out with the examples, for example the Heart Rate monitor sample project. Also consider buying a dev kit from Bluegiga, it has among other things, a Heart rate device sample that works with iOS.
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Closed 11 years ago.
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I'm not sure, if it's the right place here to ask this question.
But can anybody explain more detaild, how sim-based mobile phone tracking's working, und if it costs anything (the second part is very important)?
The Wikipedia article explains it pretty well:
Mobile phone tracking tracks the current position of a mobile phone even on the move. To locate the phone, it must emit at least the roaming signal to contact the next nearby antenna tower, but the process does not require an active call. GSM localisation is then done by multilateration based on the signal strength to nearby antenna masts.
So as soon as your phone is turned on, it starts to emit signals that the antennas catch. If several of them receive the signal, that (and the signal strength) gives a pretty good indication of your location.
It needs a bit of software (which the law requires today), so it doesn't cost anything "extra" for the people that provide the hardware. It's not free for normal people to use, though.
sim based? mobile phone tracking goes in layers, just like PC. At first GPS, if phone don't have it then it counts what mobile providers towers covers the phone and how strong mobile signal is from each tower, so by that it can counts you location. It Don't cost for telephone companies but it might for you since it depends on connection provided by towers. So its not the thing you can do without providers knowing it.