Is it possible to enable HDMI audio when running an UWP app on RPi 2? There is sound when I connect speakers via the 3.5mm jack, but I would prefer HDMI audio.
Apparently it's possible, but I don't know how to do it on IoT Core: https://www.raspberrypi.org/documentation/configuration/audio-config.md
HDMI audio is not supported on Windows 10 IoT for the Raspberry Pi. The only option available is the 3.5mm headphone jack.
Source: https://msdn.microsoft.com/library/windows/hardware/dn914597(v=vs.85).aspx
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SHORT QUESTION:
Will a usb(male) to hdmi(female) adaptor work with NVIDIA Sheild?
Full Question:
I am trying to connect my surround sound hifi with my nvidia shield separately to my TV. Would a usb to hdmi work on the nvidia shield to pass the audio through. Any issues with drivers?
End Goal:
To connect 4k to TV and separate 5.1 audio to hifi box
Currently Tried:
HDMI splitter - it only chooses the lowest audio output which is the TV (2.0) not the required 5.1
Notes:
Hifi box supports hdmi passthrough but only at 1080p
Hifi box (2012 pioneer, INPUTS: HDMI, OPTICAL COAXIAL)
I'm playing with Raspberry Pi 3 Model B and Android Things. I was able to configure everything (connect Pi over Ethernet, then reconnect over Wi-Fi with Android.local) and debug the app. However it's not convenient sometimes to debug over Wi-Fi when I travel and I have to change Wi-Fi networks or don't have Wi-Fi connection at all.
I know there is serial debug console, but it seems to be for getting logs and shell commands, not for debugging.
Any chance to have direct debugging over USB cable just like any other Android device like smartphone/tablet?
How to debug Android Things device over USB?
Briefly: you can't do it with Raspberry Pi.
Why not?
Let's look at the pin specification of Raspberry Pi micro USB (J1):
where
1: power
2: D- (data out), not connected
3: D+ (data in), not connected
4: NC, not connected
5: GND (ground)
So summing up the above said: no data pin connection - no adb. You can only power your RPi over micro USB.
Any chance to have direct debugging over USB cable just like any other Android device like smartphone/tablet?
Use another board. In fact, any board that has USB OTG and is supported by Android Things would allow debugging over USB, just as a "regular" smartphone/tablet.
And ironically, by the time of this writing, all the supported hardware platforms would fit except for Raspberry Pi :)
The NXP i.MX7D development board has the same pins as the Raspberry Pi for development, however it uses USB-C for power and ADB.
Highly recommend it over the Raspberry Pi
https://developer.android.com/things/hardware/imx7d.html
(source: android.com)
Another option is to setup Wi-Fi access point on your laptop and allow the Pi to connect to it. I have not tested it but it should work.
I recently got a Raspberry PI, and have been trying to play a .wav file through a connected USB speaker (which works fine on Windows 7). How do you do this in Raspbian?
would be useful to know what the speaker is.
The usb speakers is probably only powered by usb.
Check if they have a jack input and configure your raspi-config to output audio to jack
I use webcam-capture(java api) to get video stream from a usb camera, it work fine.
I want read a usb device descriptor(store some private information), i find out that should install WinUSB or libusbk as a driver to the usb devices. and it test ok, read the descriptor success (by libusb_control_transfer api)
the question is:
befor I install WinUSB, the usb camera is a camera device in the windows device management list. the LibUSB work fail, can't open the usb devices, the error number is -5, means entrypoin not find
after I install WinUSB, libUSB api work ok, but the webcam program can't open the usb devices, it is a universal usb device in the windows device management list.
is there some way the webcam work ok, at the same time, i can read the usb device descriptor use libusb or use other something?
i tested on windows 7 and windows 8, have the same problem.
thanks.
Sadly this is not possible because each of your applications needs a different driver. The only way this can work is if you use libusb and build you own capturing api on top which is quite complicated. As long as webcam-capture can not read the data you want to know about the webcam I am afraid this is not possible.
I have an Arduino-compatible board with USB Host Shield. It is connected to an Acer A100 Android tablet running "Ice Cream Sandwich" (Android 4.0.3) with Kernel 2.6.39.4. (The tablet has a USB micro connector and does not support USB HOST mode and therefore cannot connect directly to a USB accessory device.)
This picture shows what I have been able to do successfully (but with my tablet in place of the phone).
http://www.seeedstudio.com/wiki/File:SeeeduinoADK_Setup.jpg
I would like to find an example of using an Android tablet connected to a USB Accessory (such as a keyboard or flash drive) via Arduino.
Connecting the USB accessory to the Arduino's USB micro connector (using an external power supply) does not work.
Can anyone provide me with such an example?
Theoretically it should work, I haven't tried it yet though.
Arduino should act as the middle man and should relay signals both from your tablet and the accessory.
What code are you use?
This is: adk_release_20120606?
And what board are you use SeeeduinoADK?
I use board Seeeduino ADK, but unfortunately I could not make it work in USB accessory mode. My board work in only ADB (MicroBridge mode). See my work example
My tablet is Ainol Aurora with Android version 4.0.4 (CyanogenMod 9)