Hello All,
I am creating an iOS application which uses the accelerometer sensor. I am able to get the sensor data using CMMotionManager. I also want to get the sensor's hardware details like Sensor Name, Vendor, Type, Range, etc. I can get these values in Android, but I couldn't find a way to do it even after searching all over the internet. Is this possible to get those values in iOS?
I don't think you can get that information from iOS, mostly because there is only one vendor for iOS devices and that is Apple. On Android you can have many device providers and it makes sense to let you know more about that device tech specs, but not on iOS.
Related
I've been researching a possible iOS-based app, developed in Unity, that would require a high-degree of positional accuracy (centimeters).
I expect I would need to connect, from the app, to an external GPS device using Bluetooth (or similar) and obtain NMEA sentences (or similar) containing location data.
My research has brought me to RTK, which is extremely accurate. From what I've seen already, it seems that normally GPS receivers which offer this operate themselves at normal GPS precision (2-2.5m). The correction to a high-accuracy location happens in software on a connected computer or tablet with a connection to an NTRIP server.
Assuming what I've said is correct, does anyone know of a GPS device that performs this RTK correction on the GPS device itself? Ideally I could just connect with Bluetooth or similar and get NMEA (or equivalent) data with high-accuracy location.
It may also be that I'm thinking about this incorrectly. On iOS, assuming there is an 3rd party app performing the RTK calculations, is there a standard way to obtain that high-accuracy location? Alternatively, are there GPS vendors that supply SDKs that would allow me to get to where I need to go?
Thanks very much,
Kieran
There is a recent module from U-Blox named ZED-F9P which has internal processing and is faster then RTKLib. Check this blog for performance
You can buy a board like ArduSimple's simpleRTK2B with an XBee module for WiFi/Blutooth or something similar from Sparkfun. You could also wait for the development board from U-Blox which is not yet available.
I used to use an app called Battery Life on iOS which I believe was using https://github.com/eldade/UIDeviceListener as a method to retrieve the charger's information (as in the wattage amount, voltage, and amplitude). However, that app has since been pulled from App Store and was replaced with a new version without that functionality, and UIDeviceListener has a note saying that it's no longer working in iOS 10+.
Now, I currently have an iPhone X that I charge with Qi charger, and I'm just curious about how much wattage does my Qi charger supplies to my iPhone. I know that for a USB charging I could easily put a USB wattage meter and I could get the number that I want, but because this is an induction charger I feel like I have to test it on the device itself.
Has anybody found a API that would provide this information similar to what UIDeviceListener was reporting (IOKit?)? I'm planning to just side load it to my phone, so using private API wouldn't be an issue.
Thank you.
It seems you can do it with the private API IOKit as you suggested.
I found this project : https://github.com/ethan605/ios-battery-stat
It's old, so it might need some modifications
Edit : I found this one, much more recent : https://github.com/eldade/EEIOKitListener
I sincerely hope I'm just missing something in the API, but is there a way to determine distance between 2 devices using Google Nearby Messages for iOS?
I understand that Nearby Messages uses a variety of mediums to determine if devices are in close proximity (wifi, BLE, sound) and whether they can connect, which may actually be why it doesn't offer a way to determine distance between devices, perhaps they simply can't do it reliably..
If anyone can offer insight as to how I might determine distance between devices using Google Nearby Messages API for iOS, or perhaps some other recommended way, I would be very grateful!
edit: I found the place in the Android API that includes distance as a property on messages. It might just be the case that the iOS API doesn't have distance yet, which is a bummer.
Precise distance isn't something the API on either iOS or Android supports at the moment. The most precision we provide is earshot (i.e. audio range) vs radio.
[Precise distance turns out to be quite a hard problem in general, and something we're often researching better solutions to...]
Is it possible to check within an app, if there are other idevices nearby which have the app running?
For example device A starts the app. Device B also starts the app. When they are nearby, a notification will popup.
I know its possible to check the range between two GPS coordinates. But the only solution that I've found on the internet was, that I have to make a webservice/server which handles the coordinates which were sent by the idevices.
But I'd like to make it run "offline", without saving/sending the data at a webserver.
You can achieve exactly this using the new iBeacons functionality in iOS 7. I'm not sure I can link to the exact documentation due to the NDA currently (although the feature was mentioned publicly at WWDC), but if you search for 'beacons' on the Apple Developer site you should find what you need.
There are also some examples towards the end of this year's WWDC session 307 - "What's new in Core Location?". This is arguably more useful than the documentation.
Essentially, you define a beacon region and tell your devices to start advertising their presence. At the same time, you can listen out for beacons in the local area - CoreLocation will then report you the identifier and approximate distance of each device.
I want to create a project which will interact with the iPhone/iPad via the 3.5mm jack. There are a bunch of these accessories on kickstarter.com. Although, I could't find any SDK that will provide me the possibility to get data from jack input.
I have seen that some people at progical.com have a sort of SDK that can manage this kind of connection but they haven't answered me yet (I applied for their SDK few months ago). Is there any alternative for that? I want to make this project in order to get my degree so the Apple MFI won't apply.
The project will consist in a bunch of sensors that will send data to my app using 3.5 audio jack. Using my app, I will process the received data.
The 3.5" Jack connector is originally supposed to send and receive audio data. It means that if a connection is plugged in, the OS will automatically redirect all audio signals to it (with a few exceptions). Thus, you can access the data using the built-in audio processing APIs of iOS, for example CoreAudio and audio queues.
As an example, you can generate and receive signals of different frequencies, which can be used to control and get information from external devices (you'll need some kind of electrical engineering for this to work, though - filtering, separating control frequencies, etc.).