I have a Nexus 7 3G!
I would like to put it in my car where it should replace my radio.
My goal is to gather as much information as i can before getting started.
I will keep this thread up to date.
So here is a possible combination of parts, software I am going to use and helpful hints for the Nexus7 in a car.
It is more or less a help for myself
If I can do better, maybe I get some feedback here.
DroidTV is working!
new dc converter
new acryl-glass mount
added new pics
my dc-converter crashed
I dont really know what append!?
Nexus7 installed in my car!
Will update pics & part list
TIMURs Kernel - fixed install
flashed Timurs kernel (fixed installation)
ordered another charger (ebay) with USB output
tested Tasker (airplane mode requires Secure Settings plugin)
tested auto power-on when usb power is plugged in (see fastboot command under tricks)
ordered most parts from the list tonight except usb dac
I would be excited if all is working as expected
Smart ForTwo 451 2009
MY CAR AUDIO from fortissimo-net.de
Hertz Space 6KL
Hubcar Subwoofer Chassis
Nexus7 of course
12V to 5V (3A) converter (USB) bricked
DC to DC Buck Converter High Power 14A proved
otg cable angled proved
delock usb hub proved
Fiio E10 usb dac proved
Cinch Volume Control produced too much noise!
double din frame for my "car" proved
silicon case proved, but not needed anymore
obd bt adapter proved
slim bluetooth keyboard proved
delock y-power-cable proved
micro-b usb angled 20cm OTG does not work!
TerraTec Cinergy T Stick RC
Ground Loop Converter? proved
KERNEL / ROM
for charging through otg cable & more
- Timur's Kernel / USB ROM 4.2.x proved
fastboot oem off-mode-charge 0
fastboot oem off-mode-charge 1
Nexus 7 charger/cable issues
The Only Car Charger You Need for the Nexus 7
dvb-t usb stick:
DVB-T dongle running on Nexus 7
SDR Touch - Live radio on your Android device
RTL2832U can be used as a cheap SDR
I compiled a RTL2832U driver for the USB-ROM / Kernel '3.1.10-gfcf72bf-dirty' with Timurs help.
my working startscript:
echo "starting DVB support" insmod dvb-core.ko insmod dvb-pll.ko insmod rc-core.ko insmod dvb-usb.ko insmod dvb-usb-rtl2832u.ko echo "Waiting for device" sleep 5 cd / mkdir /dev/dvb chmod 777 /dev/dvb mkdir /dev/dvb/adapter0 chmod 777 /dev/adapter0 cd /dev/dvb/adapter0 ln -s /dev/dvb0.frontend0 frontend0 ln -s /dev/dvb0.demux0 demux0 ln -s /dev/dvb0.dvr0 dvr0 ln -s /dev/dvb0.dvr0 dvr0.ts chmod -R 777 /dev/dvb* echo "DONE!"
webcam as fully functional rear cam!
I played a little bit with mjpg-streamer and motion on my raspberry pi with a Logitech C525 (720p, autofocus).
A rear cam is not necessary for my car, but a (motion detecting) recording front cam would be nice
- if you want to make your own OTG usb cable you have to short pin 4 (ID) and pin 5 (GND) on micro usb side link
(this is usb standard, some sources tell to take a 100k resistor instead of short circuit for charging through otg cable)
- i think you will be able to cut the uplink cable from a usb hub and solder a micro b usb plug, short pin 4+5 for otg and solder a power supply simultaneously to pin 1 (VCC) and pin 5 (GND)
- an arduino micro (clone) acting as a usb keyboard to send volume control und power button function instead of this Joycon device..
arduino micro clone $16.99
update arduino unos firmware for USB HID Keyboard Support
- Tasker (ignition on = wake up + play music, set wifi+gps on; ignition off = airplane mode, deep sleep) proved
- Poweramp proved
- Torque (OBD) proved
- Navigon proved
- Audio Glow Music Visualizer thx to Kookie_Monster
- SDR Touch - Live radio via USB + RTL2832U driver (xda-thread)