[Nexus 7 General] JOAOOx3:
Hi everyone,

This post is about a love story between a nexus 7 and a VW Transporter.

It all starts by needing a gps in car for deliveries or just to navigate over alternative roads.

WIRING DIAGRAM

Charging tablet and HUB: dc-dc 12v-5v 3a charges tablet + dc-dc usb 5v 2a for external powering a 4-ports hub.

Connected to HUB: Huawei 3G HSDPA stick, HD-3000 webcam, dvb/fm stick, extension usb cable (usb port in dash)

Phone: And a dual usb-port 5v 3a for charge my phone and fm transmitter (because my phones bluetooth wastes my battery)

ROM/KERNEL

USB-ROM (update 17-08-2013) with USB-host kernel by Timur __link1 __link2

Really the best ROM/Kernel for a car install.

One night (8 hours) without charging, only loss 2% batt. Also supports fast charging.

AUTO-POWER-ON WHEN IGN-ON __link

Even when n7 is completly off, when charger connected it automatically turns on.

fastboot oem off-mode-charge 0

revert:

fastboot oem off-mode-charge 1

BOOTANIMATION

This is what I did using photoshop and a simple tutorial:

It is only a sample, using desc.txt its faster than this gif.

TASKER

When IGN-ON:

keyguard off, airplane mode off, GPS on, start video dailyroads, launch NDrive, play music,

WiFi on (for PPP Widget + 3G Huawei HSDPA), and keep display ON USB.

IGN-OFF:

airplane mode on, pause music, stop video dailyroads + kill app, go home page 1,

lock screen, kill all apps (dont needed apps), deep sleep

WEBCAM DASH + RECORDING

I bought a HD-3000 webcam thats connected via otg and hub. Reading this post u will know that is possible to connect webcams and uvc sticks+cctv cam.

All devices must be UVC-COMPLIANT, check this list: __link

After this, i've been testing dashcam apps like DailyRoads, AutoGuard, AutoBoy, iOnRoad. For me, till now, the best with my configuration is DailyRoads (and because its a free app)

If you have OBD2 BT adapter you can also use Torque + Track recorder plugin.

This configuration will disable your front cam. redeyedjedi said that found a way to make both work, but I already try it and get stuck on bootloader.

Anyone please try his solution: __link

THIS IS ALL I USED:

My beautiful NEXUS 7 32GB WIFI :')

OTG cable (transform it myself to do a OTG-Y-cable + external powering hub, see wiring diagram)

OTG Angled cable

DVB FM rtl2832u

(waiting for it)

Huawei 3G hsdpa stick (w unlimited traffic)

USB HUB 4ports

USB extension (from hub to dashboard)

Dual usb port charger 5v 3a

DC-DC 12v-5v 3a

Voltmeter & Ampmeter

Cooling system

Webcam Microsoft HD-3000

FM Transmitter (for phone)

3,5mm spliter + 3,5mm to RCA cable (left/right)

Cable directly from positive battery with 10a fuse

ON/off switch / circuit breaker

OBD2 ELM327 BT (dont work with this car)

APPS INSTALLED AND WHY

Free:

PPP Widget -using for connect my 3g stick, internet anywhere with a wifi n7 :')

3CX Phone -for VoIP calls (with free calls (only for Portugal fixed numbers))

Deliveries -real time parcels tracking

Audio Glow Visualizer -only used when dont need gps (thanks to PHiL_G4 & Kookie_Monster)

MX Player

NDrive 10 -navigation app (offline maps)

DailyRoads +HD-3000 -very nice, dash cam recording app

*not tested* SDR Touch + RTL2832u driver (If works fine, maybe need to change a bit of this project and dont keep the headunit)

Paid:

Poweramp PRO +ICS Theme -for me, best music player.

Solid Explorer PRO -organize, manage files

Torque PRO -amazing!

Tasker PRO

FUTURE TO DO LIST

Have to try somehow if can have two cameras connected (webcam in dash and a rear cam).

Webcam should still recording, and when put in rear gear it opens carcam app ou simplewebcam app to show rear cam.

Dont know if this will work. __link

I have a Easycap 4CH 1c88:0007 but cant put it working, someone knows how to install it? Drivers? Non-compatible?

PLEASE, IF YOU HAVE ANY SUGGESTION, I'M KINDLY LISTENING TO ALL OPTIONS (:

.