I am looking for a way to use my old samsung galaxy note 3 as the touchscreen for my raspberry pi

Question

I have an old galaxy note 3 and I was looking to use that to replace the radio head unit in my car. I want to have the raspberry pi run the system and the galaxy note would basically be the screen for it.

I saw a tutorial for using a usb tether to accomplish this. link: http://joshuawoehlke.com/android-raspberry-pi-display-over-usb/

The problem I am having is that after I save the code for the usb0 network and reboot, the new usb0 does not show up in ifconfig.

Does anyone know of a different way to set up a usb network interface for a wired usb connection? Or know if something in the tutorial is possibly wrong for my particular pi?

Help much appreciated.

My Pi: Raspberry Pi 2 Model B V1.1 Raspberry Pi 2014

Running Raspbian

edit:

File: /etc/network/interfaces

interfaces(5) file used by ifup(8) and ifdown(8)

Please note that this file is written to be used with dhcpcd

# For static IP, consult /etc/dhcpcd.conf and 'man dhcpcd.conf'
# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d
auto lo
iface lo inet loopback
iface eth0 inet manual
allow-hotplug wlan0
iface wlan0 inet manual
    wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
allow-hotplug wlan1
iface wlan1 inet manual
    wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
iface usb0 inet static
address 192.168.42.42
netwrok 192.168.42.0
broadcast 192.168.42.255

edit 2: The tablet would be a permanent fixture and does not have data plan.

Answer 1

I use a raspberry pi as a Car Media Server myself for playing music via the headunit and streaming films and videos to my kids devices. Therefore i create a local wifi network with the pi as access point. For maintenance I can use a vnc server running on the pi and displayed on my android using a vnc client.

Instead of connecting your phone via usb you also could use such approach. Big advantage is that there is no wired connection necessary.

Edit:

I followed (mostly) this guide: http://www.gavsworld.net/?page=Raspberry+Pi/Car+Media+Server Though I use the logitech media server for music (just because I am used to around my house) and a minidlna server for streaming video.

Answer 2

They both server the same purpose. Store and play media. You would still need the amplifier from your head unit. I would suggest using the the head unit aux in to connect your tab from headphone out, and a well mounted tab would make a neat touchscreen car media player.

Your tab already has SIM to connect to a network, GPS, etc, so you can use it for navigation, handsfree, etc.

A better project for the pi would be to use the display from an old laptop. With bluetooth keyboard and mouse you could make a proper entertainment system for your car, more suited for a larger car/van, and you are not the driver. So you can play games, etc. Have a look at this video.