I am trying to do an OTA Update on my bluetooth device. Therefor I got some gbl files, which I need to read out and send via flutter_reactive_ble to the bluetooth device. Does anyone of you know how to readout the gbl file and then convert it, that I can use writeCharacteristicWithResponse for this?
I am using this library: https://github.com/PhilipsHue/flutter_reactive_ble
Related
There is a sensor called "FreeStyle Libre" (https://www.freestylelibre.co.uk/libre/). I want to read this device's data via Flutter but NFC doesn't see this device. I can read via their original app. What could be the problem? Is it encryption problem or something like that? How can I find the problem.
I want to record a video of my application which is running on my iPhone and use it for Replay. How can I do that?
I was searching for this and could't find any solution.
Your only options are:
1. Run the app in the simulator and use any screen capture tool for mac to record a video
2. Fix the iPhone on a pod/stand and record video of you app with another camera
If the app does not have any feature which is available only on the device i would avoid option no 2, because iPhone's glossy screen shows all kinds of reflections and the user's hand in the video is really annoying..
Well, if your phone is a 4S you can get a dongle from Apple that outputs the video as a HD stream. The dongle lets you plug in a HDMI cable, so you would need some way to capture that output.
I have a guitar diagram app for Android that I am porting to iOS. Android has a embedded midi synthesizer (sonivox), so I can generate midi files and let Android handle the playback.
Is there a way to do this on iOS? Or are there very lightweight embeddable synths for iOS?
Since iOS 5 there's now the AUSampler audio unit for which you can load a sound bank (apple preset and soundfonts) and then control the sampler/synth via MIDI messages.
Seee this example app:
https://developer.apple.com/library/ios/#samplecode/LoadPresetDemo/Listings/ReadMe_txt.html
It works great!
Update: My answer is out-of-dated. #lukebuehler's answer is much appropriate.
If you don't mind non-opensource solution, try FMOD. Being a commercial audio engine for games, fmod equips a simple MIDI synth. I've tried the free evaluation version. It plays GM MIDI files correctly on my iPhone 3G.
If what you want is not just a SMF file player, you want a full function GS/GM softsynth, which can response individual midi events in realtime. You can try the midisynth from CrimsonTech. Its license fee is fair. Crimsontech provides several demo apps in the appstore. Besides, it also provides an evaluation SDK for free. You don't need to pay a penny for the license until you're really going to publish your app.
I don't think MIDI support in iOS 4.2 allows playback of MIDI data from the phone itself. It is merely for sending and receiving MIDI commands to other MIDI devices.
From the recent iOS 4.2 docs, it seems that you can use the MIDI support to send MIDI commands to other devices for playback. You can also receive commands from other devices and make changes to these commands, or to save it in a file. However I can't find any support to actually play MIDI file from the phone directly. Someone please correct me if I'm wrong (I wish I'm wrong!!).
There is MIDI support in iOS 4.2. If it is the same as what OS X provides then trhere will also be a basic synth included. Check it out.
I want to write a function in my iPad App, which allows me to stream the music choosen on iPad to the connected Game-Interfaces (iPod, iPhone...) via bluetooth. Does anyone knows a simple solution or maybe wants to share some sample code?
Thanks for help!
I am doing something very similar. I have my iphone connecting to multiple devices to stream audio to them, but I want the device that is streaming the audio to also play audio as well.
You can look into the GKSession in the GameKit API and that should give you a good start.
Also maybe openAl, but I think that might be a little overboard. I heard Core Audio has a built in feature for bluetooth devices that are connected to play audio through them but I dont think this goes for iPhone, iPad, iTouch etc....
I have also created my own peer connection interface that allows me to see multiple bluetooth devices that are running my app. I then can click each one and each gets connected. I then I added a test to push a text message to all connected devices for testing. Next I need to find out how to stream audio to the connected apple devices.
If anyone has any info on this I am sure we would both appreciate it.
I need to stream an audio file which is saved on my server. Is it possible for me to stream that file in order to play it on my iPhone? Or is there any other way to play an audio file from the server to iPhone? help me please.
Thanks,
Shibin
This link was useful to me : http://cocoawithlove.com/2008/09/streaming-and-playing-live-mp3-stream.html
He's got a project linked from that page http://projectswithlove.com/projects/iPhoneStreamingPlayer.zip
In this project, interesting lines are in iPhoneStreamingPlayerViewController.m, lines 82-89 start streaming the audio from a url.
I've manged to get this running on my iPhone and tested it using an mp3 on another server and it works fine. However, I've not picked through the code so I can't help you anymore than this, sorry!
Sam
NS To get the project to compile I had to change the SDK to 3.0 - if you right click on the project name and choose Get Info, then change the option called Base SDK to iPhone Device 3.0 and it should work.
There's a couple of ways to get the file playing on the iPhone, but the first problem is that you need to decide how to serve the file from your server.
One great way is to share the file out via HTTP using a Web Server. If the server is Windows, look into 'IIS'. If it's a Mac or Linux, Apache is your friend.
Once you've got the serving going, here are the options on the iPhone:
1) Use iPhone Safari to navigate to http://your-server/your-folder/the-file.ext. If the serving is correct, it'll open the mediaplayer and stream it.
2) Write an iPhone application that uses the AVMediaPlayer framework to play the file. Non-trivial, but there are plenty of samples.