I am using the ionic ble library to communicate with a bluetooth device. Currently I am not seeing any function to write to a descriptor. Is this possible with this library?
I am very new to raspberry pi. I want to use annyang speech recognition software (it is a speech recognition software for websites). But I am not understanding how to start working with microphone. (When I use arecord or aplay commands, it is showing error such as: No such file in directory).
Do I need to change any settings in the pi board to access microphone?
Raspberry pi's do not have a built in microphone, you will need to use a USB microphone or connect a USB Sound Card and plug a microphone into that.
When you use arecord you will probably have to tell it to use the right device with a command similar to this:
arecord /home/pi/Desktop/a.wav -D sysdefault:CARD=1
I am trying to establish multimedia streaming among multiple android devices. Where all of them play a synchronized video. An good example of my idea is Samsung video group play. Thanx in advance.
Google how to implement an RTSP server on the host device and then all of the client devices can connect to the RTSP stream. For the synchronization matter - either use multicast or server the same payload with adjusted timestamps to all the clients.
I want to control my iPhone Music Player by an arduino - has anyone experience with that?
At the moment I have an RedBearLab Low Energy Bluetooth Shield and a Ethernet Arduino here.
Maybe one of you has done this before and can help.
Can we make able the iphone simulator to capture an image via webcam, I've written a program to take image from iphone camera. Can i test this with the iphone simulator??? Pls help
You cannot take image via Mac's webcam from iPhone Simulator. For camera, you need to test it on a device.
Imagine if this would be possible on the Simulator, your Mac camera resoultion would be very different from the device one and your mac performances too. This could lead to bad surprises when moving and testing the application on the device.
(Sorry for my english)
In android world, the phone emulator don't have a live camera preview so the solution is create a "Webcam Server" running on emulator host (PC/Mac). This program is a socket server to capture frames from the built-in Webcam and transmit them using a socket.
Then in the phone code (android emulator) you can read the frame through socket and then shows and simulate a real phone camera.
Is that posible in iPhone simulator?
You cannot use mac's camera. For camera, you need to test it on a device.
From Apple documentation:
The hardware features that are not simulated as of iOS 8.2 are:
Motion support (accelerometer and gyroscope) are unsupported.
Audio and video input (camera and microphone) are unsupported.
Proximity sensor
Barometer Ambient light sensor