What is the best method to transfer file via wifi from one ipad to another?I know how to handle the wifi network connection.But i need to know the most efficient way to transfer imajges , video etc from one ipad to another
You may want to look at https://github.com/robbiehanson/CocoaAsyncSocket - you can use it as a TCP server/client to transfer files between ipads.
I've used it between a laptop and iPad, but it will work iPad to iPad also.
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A. I have a general understanding question about the "still pin" or "snapshot" functionality on some web cameras: how does this work ? It must be one of the following possibilities:
The camera is on and video is streaming to the host. When the snap button is pressed, a signal is sent to the host's camera driver (/dev/input/event0 on linux), the driver extracts a frame from the stream, and sends it up in the stack.
The camera is on and video is streaming (or not) to the host. When the snap button is pressed, the on board firmware puts aside the current frame, and tells the host a new "still" is available.
B. I have 4 usb cameras attached on a R-Pi (single usb host). All cameras have a still pin. I don't care about the video, no need for streaming, I want to take 4 simultaneous photos. My idea is to trigger all 4 cams to capture a frame using the still pin. How can I capture those 4 images without streaming video (bandwidth issues) ?
Note: I have already experimented a lot and I am capable of capturing a frame from a video stream. My cameras are unknown brands but exposes "video capture" as device caps. When using AMCap on windows, the snap button triggers a snapshot.
Thanks for any help.
Could I send an image or video from Arduino IDE to Touch Designer software?
Could I use the pictures saved with the CMOS camera for example?
Thanks,
Giuseppe
You can send images via bluetooth, wifi or serial, but the speed of taking the picture and sending over wont be that fast.
You are better of with a gopro connected via wifi or Canon via usb cable. Forget Arduino if you need a live feed.
I am developing app for iPad and i want to send text message(not iMessage) from my app. Is it possible through iPad which has WiFi with Cellular?
No this is not possible, since the iPad does not have any support for SMS. Even Apples own Messages.app does not support SMS on iPad.
You would need to setup an external server that handles sending the actual texts. As for making the app send texts using the iPad's GSM signal it is impossible
I have an installation project in mind which involves a hacked iPad - I'd like to have a background process running recording all the touch events regardless of what app is running in the foreground, and send them out via OSC.
Note that this is using a jailbroken iPad with root access, and users will be alerted about not entering any sensitive data. But I'm not an iOS developer so I'm not sure if this is even possible. I'd appreciate any kind of input/suggestions.
[edit] Since someone questioned my motive behind this question, I'll try to explain a bit: to be specific, I'd like to build a mechanical system with Arduino that emulates the user's touch input on the iPad, but I do not want to limit them to using an app that does nothing else but recording touch events.
There are three options:
Use the IOHIDFamily subsystem to capture all the touch events. This will do most of the processing for you, the only thing you'll need to do is fetch the events using a HID client, get their types, and if they are touch events, get their position, radius and other things you need.
Use the MultitouchSupport framework. This way you will have to process the digitizer data frames manually which is tricky.
Use a MobileSubstrate hook to hook the already existing HID client inside SpringBoard.
how can I tell programatically if the bluetooth is turned on or of on the device?
And in ethier case turn it off or on programatically?
thanks
Are you talking about the popup that appears when you run the GKTank application while bluetooth is turned off? I suspect this is a function of the PeerPicker class - I haven't seen a way to query the bluetooth status directly.
However if you attempt to make a bluetooth call when bluetooth is off you'll receive a GKSessionCannotEnableError error code (Bluetooth is not currently available).
There's currently no way to interface with Bluetooth unless you join the Made for iPod / Works With iPhone program for some hardware you're developing.