Raspberry Pi Bluetooth Receiver for your Car Stereo

RasPi Car Audio

The ability to play music in your car over a Bluetooth connection is very handy. You can typically just leave your phone’s Bluetooth module turned on and it will automatically pair to your car. Then all you have to do is load up a music player app and press play. You don’t have to worry about physically tethering your phone to the car every time you get in and out of the vehicle. Unfortunately Bluetooth is not a standard option in many cars, and it can be expensive to buy an aftermarket adapter.

[parkerlreed] built his own solution to this problem using a Raspberry Pi. He first installed arch Linux on his Pi. He also had to install pulseaudio and bluez, which is trivial if you use a package manager. He then modified some of the Linux configuration files to automatically bring the Pi’s Bluetooth adapter online once it is initialized by the kernel.

At the end of the boot sequence, the Pi is configured to automatically log in to a virtual console as [parkerlreed's] user. The user’s bashrc file is then altered to start pulseaudio in daemon mode at the end of the login sequence. This allows the Pi to actually play the audio via the Pi’s sound card. The Pi’s stereo output jack is then plugged into the vehicle’s auxiliary input jack using a standard audio cable.

The Reddit post has all of the configuration details you would need to duplicate this setup. [parkerlreed] also includes some commands you will need to setup the initial pairing of the Raspberry Pi to your smart phone. Be sure to watch the video demonstration below. [Read more...]

Full Linux distro on a Nook color

We should have included a footnote in the title. You can say that [Thomas Polasek] installed a full version of Arch Linux on his Nook Color, but there’s one caveat. It’s running on top of the Android kernel and his proof-of-concept uses a second computer to get it up and running. But there’s potential for that to change moving forward.

Unlike previous attempts to run a Linux distro on Android, this does away with using a VNC to show the desktop. [Thomas] is commandeering Android’s frame buffer so that it can be used by the X desktop without needing to set up display drivers. To start off he installed a ROM based on CM7. A couple of Android apps give him the functionality needed to get the Arch Linux distro running from the SD card. This is accomplished by tunneling into the tablet via SSH, and using the ‘chroot’ command to make it active. The hope is that this can somehow be automated by a script.

A female to female USB coupler was used to connect the keyboard and mouse to the Nook. It looks like LXDE would be useless without them; touch control is not yet implemented. Those shortcomings aside, everything seems to be running pretty fast in the video after the break.

[Read more...]

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