This guide represents a current WORK IN PROGRESS. Development is currently underway for Streak 7 OTG functionality including consideration for FTDI Serial2USB kernel module and HU Integration via custom Android Activity & Service, and breakdown of the Home Dock for stealth installation and OTG support.
While this guide focuses on Streak integration with a Mazda RX8, the concepts, tools, and many of the components can be utilized for a multitude of other platforms.
MODS: If you'd rather this be in General or Apps & Themes, feel free to move it. Simply bear in mind that I plan to provide source and binaries for a custom FTDI kernel module (if necessary), steps for installation, as well as source and binaries for any Android Activities and Services I build for Integration.
I've been running a Windows 7 mini-itx carpc for quite some time on my RX8. The system consists of a ITX case I keep mounted in my trunk, USB GPS, RS232 to OBDII wired connection, a Grom Car2PC HU Integration adapter with a bunch of custom code for HU and Steering Wheel controls integration, and a Lilliput 7" Resistive touchscreen mounted in a Mazda Japan Retractable Navigation tray.
I deliver clean power to the PC using a Carnetix P2140 power supply with a bit more custom code for ignition synchronized hibernate and wakeup.
For the past year I've been waiting for a good Android tablet replacement and have landed on the Streak 7.
Dimensions wise the Streak 7 matches the typical Lilliput 7" exactly.
This project requires the following additional hardware for your RX8
JDM Retractable Nav Tray
SlipGrip RAM-HOL Mount
Streak 7 Dell OtterBox (Commuter)
Streak Home Dock *
3.5mm Audio cable (possibly with MIC splitter)
Grom Car2PC Adapter
Here is a picture of the Streak running OBD2 and HU Audio integration via the Streak audio out jack and a bluetooth connection to a generic ELM OBD2 reader.
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What works?
Car Mount complete
Head Unit Audio via Streak 3.5mm audio out
What is in-progress?
Dell Dock breakdown
PDMI extension cable (if required)
Power supply integration
Power state change Android Activity
What is planned?
USB OTG Support via dock
FTDI USB to Serial Kernel Module
Car2PC Integration Android Service
----------------------------------------------------------------
Post #2 illustrates adapting the Mazda Nav Tray and SlipGrip mount and dash installation.
Post #3 illustrates placement of the Grom Car2PC adapter and all HU integration items.
Post #4 illustrates breakdown and placement of the PDMI dock, power wiring, and OTG wiring
Post #5 reserved for future use
Post #2 illustrates adapting the Mazda Nav Tray and SlipGrip mount and dash installation.
You need to mark and drill two holes on the JDM nav tray's center plate for mounting the SlipGrip Streak holder. I also used a wood shim to provide a solid mounting surface between the center plate and the holder.
Here's a shot of the Navigation Tray fully assembled, ready to be installed in my dash.
Remove all Center Console components.
Wiring and Mounting complete (temporarily using the Streak 3.5mm audio plug for HU integration to my Car2PC module).
And all stealth like when not in use.
Post #3 illustrates placement of the Grom Car2PC adapter and all HU integration items.
Post #4 illustrates breakdown and placement of the PDMI dock, power wiring, and OTG wiring
Post #5 reserved for future use
If you're planning on taking apart a multimedia dock, I'd be interested in high/higher res scans of the pcb and the wiring diagram of it for the wiki.
Some of it's pins are known, but the info is all over the place
I've got a DLSR so no problem. I'll be out of town for the next couple days. Should have an update by next Friday.
Nice work so far; looks very clean and professional. Are you running Torque app in there?
I have torque lite installed... Have been using dash command too.
Sent from my GT-I9100 using Tapatalk
TheManii said:
If you're planning on taking apart a multimedia dock, I'd be interested in high/higher res scans of the pcb and the wiring diagram of it for the wiki.
Some of it's pins are known, but the info is all over the place
Click to expand...
Click to collapse
Sorry for the delay... finally got to dismantle my dock and take some pictures.
Hope to have it integrated this weekend.
Very cool. This is almost exactly what I wanted to do except I was thinking docking the tablet directly into the dash but that works very well too
I am interested in the pin out as well. I am going to be swapping the stock PDMI connector for a micro USB soon. My PDMI connector bent a pin inside and is now shot...
I had originally wanted to use the dock too but have been unable to source a PDMI extension cable. Even unboxed I dont have the real estate to mount to it directly.
Sent from my GT-I9100 using Tapatalk 2
I will be mounting the dock into the center console of my dash. The dock will be mostly hidden with just the front end and pdmi pins sticking out enough to set the SD7 directly onto the dock and sit flush against the rest of the dash. My local audio shop is comming up with some interesting ideas on how to secure the dock and then have some way to keep the tab secured.
The dock will then connect to an after market head unit through the 3.5 output in the back of the dock and connect as an six input in the back of the headunit. Dock will be hard wired to the battery so that all wiring will be hidden in the dash.
Then I will chose option to "keep screen on while charging" so that when I power on the car and power is fed to the dock the screen will automatically power on. The head unit also has a usb for a flash drive worth of music when the streak isn't being used, as well as ipod input and built in control and ill have the ipod wire run to the glove box.
Essentially, tethered to my cell, the streak 7 will act as a secondary removable HU, internet ready for things like navigation, add free Pandora with unlimited skipps, I've got grooveIP working flawlessly to make and receive phone calls through my Google Voice, I plan on adding a Bluetooth obd2n unit to display car info in real time through something like torque, I'm waiting for the GoPro WiFi bacpack to be released this summer and ill have a front or back end cam displayed through the stated GoPro control app comming to Android when the WiFi backpack is released. I've even got two headrest monitors that will eventually be fed by the hdmi output from the dock.
I am excited, been a long work in progress(with no work taking place lol) and the set up gives me tons of input options and allows me to pick up my ds7 and go just like any removable face HU, except I get to play with mine when its detatched.
Any other ideas for apps or what not, I am all ears. Something that isn't working on my streak right now is voice control... That will be needed while I am driving! Check the beta4 thread
Sent from my PC36100 using XDA
Does the Dell dock have any sort of remote control? It would be awesome to set up your steering wheel controls to function with the DS7. Another possible option would be to use a bluetooth keyboard wired up to your steering wheel controls and then a programmable input in the Android system such as a game controller app allows programing of simulated keys.
my vehicle is a '06 Mercury Mariner... basically a nicer version of a Ford Escape.
there aren't any steering controls, i'm not to concerned with that as of right now, but i do like the idea of a Bluetooth keyboard. I was looking at some mini keyboard options from amazon/ebay/dhgate. one with a built in track pad or some kind of mouse pointer control perhaps?, I could just pass the keyboard around the car and let my passengers have some fun(browser and app input? search for an app or music selection?). but I do like that idea of perhaps assigning key presses to do things like volume control or to jump to a particular app like maps?
the dell dock has no remote control options. I am curious how many different Bluetooth pairings I can have before causing issues: headset first for use with GrooveIP for incoming/outbound phone calls-next would be keyboard-then OBD adapter.
I plan on strictly using ICS on the streak. I'll need to make sure I will not have any compatibility issues with anything I do. I've also never attempted to pair a keyboard with an android device... but I guess Ill buy one and ask questions after and return it if it doesn't work.
I personally have not used a keyboard either but I know people use them and a mouse all the time on Android devices. I like the ideas you have. One question, what is an OBD adapter? I might know but am just not getting the acronym.
Plugs into the cars CPU and transmits information. Look up "torque" in the market. Basically sends data to an app that will display real time on an android device..... think guages
Sent from my PC36100 using XDA
I have full HU integration with the Grom BT adapter and have developed my own communications library (and front end) for interfacing with my car's ECU.
Sent from my Galaxy Nexus using Tapatalk 2
Awesome. I follow now. My aftermarket ECU for my Mitsubishi allows for a laptop to do the same thing plus obviously change the program. That is really cool that you can monitor you vitals using an Android tablet now.
I'll have to set aside some time to update this thread at some point. There's a lot of stuff I've implemented that I haven't captured here yet.
Related
Today we’re looking at the AppRadio2 from Pioneer.
Original review with all appropriate links can be found by clicking here.
The AppRadio line is a huge step into the future for in-car audio. Pioneer was first out of the gate with a relatively affordable, practical, and highly functioning 7 inch capacitive touch screen car audio head unit. It's most unique feature and the reason you'll want to read through this review is because the AppRadio 2 can connect to and translate your smartphone's app capabilities into a one of a kind super device on your car's dashboard. You'll be able to use AppRadio optimized versions of some of your favorite apps to listen to music, navigate, find parking, communicate with friends and even check your car's diagnostics with the right accessories attached all on a crisp 7” touchscreen display.
Click here to see a video slideshow of the AppRadio2 in action.
Main advantage: Android and iProduct compatible (some smartphones require adapters iPhone5 and Android), crisp 7” WVGA touchscreen display with multitouch, built in amp (MOSFET 50 W x 4) 2 RCA preouts, subwoofer control, great modern hardware design with high quality materials used, can use your car's existing steering wheel controls, bluetooth audio for phone calls (mic included)
Main concern: no CD/DVD slot, no AUX in, no adjusting display angle, bit of a learning curve, no bluetooth audio for pandora or stored music.
Unique features: built in external GPS means you can turn off your phone's GPS to save battery while connected to AppRadio (turn on “enable mock locations” in your phone's settings)
While it will work with a number or phones, this device was tested exclusively with a Samsung Galaxy Note 2
Someone always has to be brave enough to be the first. Even if a product isn't completely ready for primetime, it's important to release something so that people can become familiar with a new concept. Apple really made their name by being the first extremely simple, yet powerful mp3 player and then smartphone. The early iPhone lacked a lot to be sure, but it did enough well that it changed mobile communication forever. Pioneer has shown that it has the guts that Apple had to start. They took a risk with the AppRadio and it's a great start that has great potential looking forward. Other car audio companies are clearly waiting and looking over Pioneer's shoulder concerning the AppRadio. They waited for Pioneer to make a success of the AppRadio concept and now we are starting to see some copycats emerge built off of ideas learned watching AppRadio. It might work for some of them too, but it's just not a very dignified way to do business and before I even start my real evaluation of the AppRadio 2, I give Pioneer my respect for being brave enough to release such an innovative step forward into uncharted waters.
The AppRadio 2 on it's own is a gorgeous head unit. It's so clean and simple and it's design foreshadows it's function. It floats on your dash as a huge crystal clear glass screen with an almost invisible bezel and a stainless steel “chin” at the bottom that holds the few physical buttons. Volume up/down, a home button, and a menu and back button specifically for Android phones. Pioneer didn't cut corners with materials used, this thing looks and feels like you'd want a piece of the future to look and feel. The AppRadio 2 is first and foremost a blank canvas. It's waiting to be painted with the graphics, sounds, and functionality of your smartphone whether it's an Android or Apple device. While it would be a near perfect product if Pioneer could trust us to control ourselves, we don't do that well unsupervised as drivers. If the AppRadio was a true 1 to 1 mirrored display of our smartphones, we could watch netflix movies and send text messages while driving 90 mph on the freeway. Now you and I might be sensible enough to not abuse the privilege, but plenty of 16 year olds that want to impress their friends in their first cars might not have that same restraint (and they might be driving on the same freeway as you) so try to understand the motivation behind a controlled experience. It's definitely a bit disappointing, but Pioneer offers a very filtered experience of your phone with the AppRadio 2 for now. While some apps can be just about everything they are on your phone, others won't work at all or will display images but not be able to be touch controlled.
Everything begins with a detailed warning to not operate the head unit while driving, fair enough. Commonly called a “nanny” or “nag” screen, a quick click of a button brings you into the AppRadio's main start screen. You'll be greeted by a large modern clock and day of the week indicator to start. Behind that is a wallpaper that can be changed through your smartphone app's menu setting. Below the clock, you'll find 5 icons (radio, iPod, apps, Pandora, and Phone) and with nothing connected to the device, 3 of them (iPod, apps, Pandora) will be grayed out by default. By itself, the AppRadio is simply an FM/AM radio and a speakerphone for hands-free bluetooth calling and that's about it. Connect an iPod and you can play your music, connect a phone through the appropriate cable and you can listen to Pandora or go into AppRadio mode where the real fun starts. A swipe to the right will bring up a second page of options, an expanded settings screen which actually offers a bit to look at. Next an “OFF” button that puts the device in a standby mode that amounts to a screensaver, full screen background and small clock. The last button is a display off button that will let the screen go black if you find a time you need the darkness.
Again, AppRadio2 will work with many different makes and models of smartphone, but it was clearly designed with the iPhone 4/4S in mind. You'll find a very intuitive and polished experience with that phone. Connect the included cable and go. While it can technically be made to work using the iPhone 5 and Android phones, you won't find anywhere near the same out of the box functionality. Whichever phone you use, you'll need to go to your appropriate app store first, Google or Apple, and download at least two apps to get started. The main AppRadio app that is the basis for your phone's connection, and the CarKeyboard app that will also need to be enabled for touchscreen keyboard use while using the AppRadio. The unit looks for these apps and will not function fully without them. Aside from helping your phone communicate with your AppRadio 2, the AppRadio app scans you're already installed programs and tells you which will work with appradio. The apps are the easiest part of getting started with the AppRadio 2 on Android. The part that gets a bit tricky is finding the correct adapter.
If you own one of the Galaxy line of smartphones then you know that Samsung has elected for a single micro USB input on most of their phones. The same port charges and syncs but what if you'd like to output HD video from your powerful phone? MHL, or Mobile High-Definition Link is the answer. MHL allows you to connect a micro USB cord to your phone which is attached to an adapter that turns the signal into an HDMI output that supports up to 1080p HD video and 7.1 surround audio while also charging your device. As simple as they are to use, MHL adapters aren't simple to choose. First and foremost you need to know if you need a 5pin or an 11pin adapter. The Galaxy S3, S4 and Note 2 need 11pin and older galaxy phones need a 5 pin. After that you need to know how much power your phone draws while charging. The MHL adapter needs to be connected to a power source to be able to charge your phone while it converts the video signal. The Galaxy Note 2 draws a very thirsty 2.1 amps of power which is the same as the iPad and most other tablets. The included iPod cable can be disconnected and reveals a full sized female USB port. That USB port outputs 1A charging that is enough for most smartphones including the iPhone. While it will work with some phones, unfortunately it's not enough to keep up with the Note 2. If you were to use a normal 1A car charger (or the AppRadio's included USB charging cable) with this setup everything would still work, but you wouldn't be able to charge your phone. In fact, it would drain battery because of all the work that it's doing. For the Galaxy Note 2 you'll need the following:
-an 11pin MHL adapter
-a microUSB charging cable
-a 2.1A car adapter
-an HDMI cable
These items are easy enough to get, but you need to know what specific pieces you'll need for the best outcome. For the MHL adapter, an abundance of counterfeits have flooded some of the big ecommerce sites, this automatically rules out Amazon and eBay unfortunately. Some copies are identical on the outside and plain garbage on the inside. They will make your setup charge inconsistently or not at all and make your picture signal choppy when connected to the AppRadio 2. Smartphone forums are littered with frustrated people that tried to save a buck on a cheap adapter, you'll see them blaming the head unit but trust me here, there is only one real way to do this. I like a deal as much as anyone, but unfortunately this is a case where you'll need to go to the manufacturer and pay retail. Luckily Samsung is always offering large discounts on it's own accessories up to even 50% off in some promotions. A quick Google search will show you the current deals available. Now that you've collected all of the pieces, you'll need to connect them and get started.
click here to read PART TWO which includes pricing, links to purchase, and optional accessories
It won't run Google navigation? This seems like a $500 extra screen, much like a smart watch or that contraption the adds an lcd to the back of your phone. Why not just use your phone?
Sent from my SAMSUNG-SGH-I317 using Tapatalk 4 Beta
LittleRedDot said:
It won't run Google navigation? This seems like a $500 extra screen, much like a smart watch or that contraption the adds an lcd to the back of your phone. Why not just use your phone?
Sent from my SAMSUNG-SGH-I317 using Tapatalk 4 Beta
Click to expand...
Click to collapse
An app called AR liberator made by a brilliant dev who is currently recovering from illness (get well Kyle) makes this one of the most useful pieces of tech I've ever played with.
I don't know if you took the time to read through the whole review or not but at the end there is an "EXTRA TIP" section that hints towards this.
snapz54 said:
An app called AR liberator made by a brilliant dev who is currently recovering from illness (get well Kyle) makes this one of the most useful pieces of tech I've ever played with.
I don't know if you took the time to read through the whole review or not but at the end there is an "EXTRA TIP" section that hints towards this.
Click to expand...
Click to collapse
The appradio + ar liberator is the best tech you can put in your car my friends has it so awesome.
Sent from my SCH-I605 using xda premium
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.
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Personally I dont ever liked the original VW dashboard, it's really boring, doesnt have nothing, not even a 'cool' radio.
So, 2 years ago we put one new radio that supports usb playing (WOW! Even when I got home, I stay in the car just to hear music), new wiring sound cables and some new Pioneer columns.
The paintjob its pretty damaged by now, so we start recovering it this year, all motor parts being veryfied.
TO DO LIST
Painting it with EWP WHITE BRANQUISE _link, black roof.
2.4 diesel engine and fuel pump revised, all oils changed, timing belt changed,
new tires, new rims, new brake pads and discs, new full exhaust system
Lights: daylights led using old headlights, xenon kit, led stop lights (3rd stop led bar too),
all domelights changed to LED, license plate light changed to led, odometer led
Extra: New dash (home-made) with Nexus 7, start button, parking sensors,
all interior has been cleaned and renewed.
TIMELINE
11/2012
Buying n7
Window mount for gps nav
Root and install SmoothROM
30/1/2013
Bootanimation w/ VW logo
2/2013
Idea to make a new dash myself that includes a built-in tablet.
Not anymore that ugly and sad dash.
Doing it in spare time
3/2013 > 5/2013
Starting hardwork with motor and new belts.
Some paintjob under the hood.
All front painted.
6/2013
Original dashboard remove. Keeping my headunit.
Trying solutions to fit new one, and easiest way to take n7 with me when needed.
7/2013
Ordered some parts, chargers, hub, etc.
8/2013
"Ain't nobody got time for dat!" :/
9/2013
Painting
Discovered USB-ROM and installed it, pretty amazing, extreme battery save
USB host pretty much like a computer. Doesnt understand yet how to install drivers.
Buying a webcam for test recording with dailyroads
10/2013
Daytime LED headlights audi style
Ordered parts, dc-dc converters, otg cable, usb extension, switch on/off
Click to expand...
Click to collapse
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)
Source: __link
Click to expand...
Click to collapse
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.
Code:
fastboot oem off-mode-charge 0
revert:
Code:
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.
Tutorial: __link
Click to expand...
Click to collapse
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
.
Shooting time
Reserved for beautiful pics.
Having a T5 and thinking about transforming my simple din sony car unit into a multimedia center with a nexus 7, I'm very interesting about seeing how you integrated it into the dashboard.
If you have any picts of the nexus in place would be great.
Thx in advance ! T5 rules
Xyleme said:
Having a T5 and thinking about transforming my simple din sony car unit into a multimedia center with a nexus 7, I'm very interesting about seeing how you integrated it into the dashboard.
If you have any picts of the nexus in place would be great.
Thx in advance ! T5 rules
Click to expand...
Click to collapse
Hey!
I actually have a T4 so its a bit easier, but you can look for a din that fits with n7
link1 link2 link3 link4
Hope this help you, I think you want OEM original look.
Tell me if you get it done
After mainly lurking on the forums for a while, I decided to embark on a Nexus 7 Installation as I wanted to have to same features found in newer vehicles in my 2000 Mazda Protege. The only problem is I didn't want a permanent installation and didn't find previous posts to be complete enough other than to get some ideas from. I didn't like the fixed installation because the screen in most setups doesn't face the driver and doesn't appear to be useful. In addition, I wanted to be able to remove it especially in the summer when conditions in the car may be dangerous to the device itself.
The goal of this post is to give very detailed account of the setup up, how it works, and what my future plans for improvement are. I would also like to try and answer as many questions as possible for people considering doing the same with their own devices.
Video
First off, we'll start with a quick video of the installation in action. It may seem a little low in volume in the video but all of the sounds and music are playing through the car's speakers. As such, you can make it as loud as anyone could possible want.
Pictures
First up is the view from about where the driver would see. In reality, the steering wheel does not obstruct the screen.
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Next is where the hub is currently placed. I don't yet want it completely hidden because the signal strength is displayed on the freedompop stick. It can be pushed down and out of sight from here.
And the hub in all its glory.
This is the view from the back where you can see the fish eye lens protruding from the trunk lid.
And now with the lens removed. Its still unfinished but I wanted to get a working prototype. I just need to sand down and seal the opening to prevent rust.
The MIMO antenna for data connection is just attached to the passenger's headrest for now. The wires are pretty short so it may end up staying here for now.
The FM antenna is currently placed in the back by the rear window. I live pretty far from the station so I needed something bigger for a clean signal.
A view of the power inverter. The hub takes up the plug while the Nexus is powered via the USB port.
And finally, a diagram showing the buttons of the bluetooth remote and what they do.
Hardware
Here is a complete list of all of the main hardware used.
Nexus 7 1st Gen
PAC Ground Loop Isolator
VicTsing Magnetic Detachable Fish-Eye Lens
RTL-SDR, FM+DAB, DVB-T USB Stick Set with RTL2832U & R820T
Satechi ST-TP01 Car Holder Mount for 5" - 10" Smartphones & Tablets
AmazonBasics USB 2.0 A-Male to A-Female Extension Cable (9.8 Feet/3.0 Meters)
ScanTool 426101 OBDLink MX Bluetooth/OBD-II Scan Tool Interface
DVB-T TV Turner to RF TV Antenna Coaxial Cable Adapter
Satechi Bluetooth Multi-Media Remote
NETGEAR 6000450 MIMO Antenna with 2 TS-9 Connectors
Freedom Stick Bolt 4G USB Modem
Logitech HD Webcam with Fluid Crystal Technology, C270
AmazonBasics USB 2.0 4-Port Ultra Mini Hub (NOT CURRENTLY USED)
PowerGen 4.2Amps / 20W Dual USB Car charger (NOT CURRENTLY USED)
Schumacher XI14 Power Inverter
Rosewill RHUB-300 USB 2.0 Hub 7-Port HUB With Power Adapter
Amplified AM/FM Antenna
GE Passive Antenna
European-TV Adapter
Micro USB Host OTG Cable + USB power
Software
Here is the complete list of the major software components used in this installation.
USB ROM for Nexus 7 with Timur’s Kernel
Webcam Hotswapping by redeyedjedi
SDR Touch
Torque Pro
Backup Cam (Mirror)
Tasker
Spotify
iHeartRadio
External Keyboard Helper Pro
Assistant Event for Tasker
Hardware Set Up
The Nexus 7 is mounted on the dash with the tablet mount, facing the driver. Its placement allows for easy viewing while not obstructing vision. From there, a 3.5mm audio cable runs for the headphone jack out into a PAC Ground Loop Isolator to eliminate the alternate whine and other electrical interference. This finally plugs into the AUX input of a cheap aftermarket radio I installed to replace the stock.
Coming out of the micro usb port is a Micro USB OTG Cable with power which connects to a powered USB Hub. The hub and device are powered by a 12V Power inverter. Everything should be able to be powered just through the OTG cable but I was having some charging issues early on which I rectified by disabling some apps from logging and constantly using the GPS but I kept the setup as it worked well.
On the hub are the Freedompop Bolt, RTL2832U dongle, and USB extension. The Freedompop Bolt I got a deal on over the summer which gives me a gig of free data every month which the Nexus used for its primary data connection. The signal strength can vary pretty dramatically out in NC where I am so I also installed a MIMO Antenna to improve reception and also have cell tethering as a backup in a pinch. The RTL2832U dongle is connected to the passive antenna for better FM reception which required some adapters listed in the Hardware Section. The USB extension cable runs from the dash, under the seats into the trunk where it connects to the USB webcam mounted in the trunk lid. I drilled a hole through which a fisheye lens attached to give me the backup cam.
Connected to underneath the dash is the bluetooth OBDII adapter which feeds realtime data to the Nexus and is displayed on Torque Pro. I enjoy knowing as much as possible about the car and actually end up using this display over the instrument cluster.
The final piece of hardware is the bluetooth remote mounted on the steering wheel. The buttons are remapped to various apps allowing complete control of the Nexus just using the left hand. It only took about a day to completely memorize everything which allows it to be operated without taking my eyes off the road.
Software Set Up
On the software side, The Nexus is running USB ROM with Timur's kernel which provides a fantastic base to start from when it comes to car installations. In addition, redeyedjedi's mod was installed which allows for hotswapping of the webcam as long as it was plugged in at boot. This means once everything is set up correctly, I can remove the tablet for whatever reason and when I plug in the USB again, everything works like it did before without any reboot needed.
Torque Pro is used to read and display all of the realtime information as mentioned before. SDR Touch taps into the RTL2832U dongle to give me live FM radio which is controlled via the bluetooth remote. I have the mainstays of Spotify and iHeartRadio for music in case I have poor reception of radio or just feel like something different.
Getting the webcam to work was tricky because most apps have the display rotated 90 degrees are have too low a refresh rate such that the feed to too choppy to be useful. I ended up installing Mirror because it gives me the correct orientation of the image and has a high enough refresh rate.
Like any good setup up, the Nexus is used for Navigation which is quite nice on the large, 7'' screen compared to my HTC One which I used to use. Google Now can be launched via the bluetooth remote allowing for voice commands to be given to set the location. Having all of the media run through the Nexus means that when navigation is speaking, the other sounds are muted and the directions can be heard clearly. This eliminated the problem of having the GPS drowned out by the radio which happened all too often with my old setup. It should be noted that I cannot yet get SDR Touch to muted or lower its volume when Navigation is speaking yet so that can be a problem sometimes.
Anyways, this is meant for people to follow along if they would like, get some inspiration for their own projects, as well as get some feedback on my own and how it can be improved. As of right now, I'm not looking to completely hide everything because it's all still being tested. I am, however, looking for some thing which can be added on to possibly make it even better. Some things I have already considered are putting a bunch of music on a flash drive for another source of music in case of poor FM and data reception.
Awesome work, i'll try to follow it. thanks for this guide
Is the dash mount sturdy enough to reduce vibrations/shakiness from driving?
jml215 said:
Is the dash mount sturdy enough to reduce vibrations/shakiness from driving?
Click to expand...
Click to collapse
Yep! I love this mount. It is solidly stuck to the dash and the Nexus doesn't move at all even when you hit a pothole or something.
Also, if you are using this guide as a reference, I am testing a new radio antenna setup. The dipole I was using was too directionally dependent and I would lose signal depending on the car's orientation. I'm testing a set up where I splice into the car's antenna and so far it seems to be working well. Once I finalize the setup, I'll update the OP.
This is awesome. In the back of my mind I've been thinking about doing similar, it's so awesome to see it in action. Good work!
aviola7x7 said:
Getting the webcam to work was tricky because most apps have the display rotated 90 degrees are have too low a refresh rate such that the feed to too choppy to be useful. I ended up installing Mirror because it gives me the correct orientation of the image and has a high enough refresh rate.
Click to expand...
Click to collapse
Interesting setup with all the extra antennas!
Question about the cam...
You mentioned refresh rates and all. What about lag or delay? Is there a delay in the video when it hits your screen?
Or was that fixed with the Mirror app?
Nice setup. I have a question about your FreedomPop dongle. When your Nexus comes out of sleep mode, does it automatically reconnect to the dongle/4G? I have one as well, and it worked fine when I tested it on my bench but once installed it doesn't seem to want to work.
Backup Cam (Mirror)
Can you please post a link to the Backup Camera App you have used... After much searching I still cannot find it...
This is the ugliest car install I've seen, obviously aesthetics aren't an important factor for you.
Poi25 said:
This is the ugliest car install I've seen, obviously aesthetics aren't an important factor for you.
Click to expand...
Click to collapse
That's the ugliest comment I've seen. Obviously, reading the post wasn't important to you. There's no reason to hide it and make it look good if it's still in a testing phase for different items.
Great post aviola, interesting choices in parts and a very good breakdown for people to gain ideas from. Very good point about keeping it removable, because summer car heat can really obliterate pieces/devices that are out unprotected.
:good:
thanks so much for this guide. :good:
Sorry for the delayed responses. With the semester finishing up, I keep forgetting to come back to this thread
natesjk said:
Interesting setup with all the extra antennas!
Question about the cam...
You mentioned refresh rates and all. What about lag or delay? Is there a delay in the video when it hits your screen?
Or was that fixed with the Mirror app?
Click to expand...
Click to collapse
I have no real issues when it comes to lag. Initially, when I was using camera applications, there was a good 1 second delay between what the camera saw and what the screen showed. Installing the mirror app reduced the lag to a point I don't notice it anymore.
delphi.actual said:
Can you please post a link to the Backup Camera App you have used... After much searching I still cannot find it...
Click to expand...
Click to collapse
Here is the link for the Mirror app I have been using:
https://play.google.com/store/apps/details?id=com.yuvalluzon.mirror
In terms of updates, I have successfully tied the tuner into my car antenna for the best reception. I installed a splitter so that the car radio and usb tuner can be connected simultaneously. SDR is good but doesn't do as well with poor reception and there are some times I would rather just use the radio rather than the whole setup.
I'm still having power issues where the the screen on max and GPS navigation use more power than the tablet gets. I'll probably do some testing with a multimeter to see how much power is actually getting to the tablet but for now I have to take the Nexus in about once a week for a full charge up.
Aesthetically, I don't have any plans as of yet to hide all of the wires. I'm constantly swapping stuff in and out and don't want the hassle of dealing with running them through the dash or anything. As the majority of people have correctly observed, this is a proof concept rather than a formal installation. My objective in posting this was not to provide a complete step by step guide for people to follow as there are already several excellent threads devoted to this. This was meant for people to get ideas from so they could build their own installations with their own equipment.
Thanks everyone for all of the positive feedback. For anyone with questions, feel free to continue to ask and I will do my best to be more timely about answering them. If you need more in depth or specific information, that's really what this thread is all about. I anticipate changes to my setup will come slowly but I'll try and update this with the ones that have been proven to work.
Hello all,
I've installed a Nexus 7 model 2012 inside my Citroën DS5 (French car). The project is to replace the small original LCD monochrom monitor for car audio (for multimedia only, no GPS).
There was no important mechanical modifications needed, because the original dashboard supports 7 inches first mount original GPS.
The original radio unit FM + CD reader + control buttons are kept. The tab will only be used as external peripheral for multimedia :MP3 and GPS.
In this car I've a duplicate screen on main driver dashboard about FM radio station, so when using FM Radio I can see the selected channel on this screen.
So in fact the main radio unit will 90% be left in "Auxiliary" source and the other 10% "FM radio" source.
Part list :
- Nexus 7 2012 with USBROM
- OTG cable
- USB Hub
- DC to DC 12V to 5V - 5A converter (found on ebay)
- 3 push buttons extracted from an old credit card format IR remote control
- RF cable
- Some wires, soldering material...
Applications :
- JetAudio Music Player (My advice, the best one for in car use)
- Night mode
- Android Weather Clock Widget
- Mappy GPS free (French GPS app), alternatively Tomtom
Installation schematic :
Coming soon. I'm not able to post image links as new user. See attachement.
Notes:
- I've added external GPS antenna because reception was bad using built in antenna. I've just soldered a RF cable on the GPS antenna connector on the mainboard and soldered the small GPS antenna at the end of RF cable,
- The 3 power on and volume buttons have been deported to accessible part of the car. I don't need to use them usually, but in case... I will be able,
- First tries by connecting DC 5V to the USB hub were showing really slow charging. I'v found a thread studying that and it's mainly due to the cable loss. standard USB cable are low section, and as I was going through USB Hub + USB cable + OTG cable... I was measuring less than 4.85V at tablet connector instead of 5.1V at DC converter output. So I've soldered highest section power cables directly after Micro-USB of the tablet and limiting the length to 50cm... Now good success with fast charging.
Tablet Installation :
Coming soon. I'm not able to post image links as new user. See attachement.
I'll try to let this thread as alive as possible.
Thanks for reading, and sorry for my English langage mistakes.
That looks like a very clean install. Nice post.
I have been trying to figure out how to install my Nexus 7 to my car but as it already has a stereo I want to keep i have to find another method.
awesome stuff though !
---------- Post added at 03:15 PM ---------- Previous post was at 03:10 PM ----------
I forgot to ask, is heat a concern for the unit when installed like that and... with the tablet screen on for extended hours is burning an image into the screen not a concern when doing these installs into cars?
I have a S3 which i use as my GPS and do some long road trips. It has now got the point where the map app has burned into the screen faintly. I am wondering if the Nexus 7 would suffer the same result?
Nice, thanks for sharing.
I'm tempt to start something like that in my car, but for now i'm only collecting ideas.
How did you managed to get FM radio on N7?
So far, AFAIK people can get radio on Nexus 7 with bluetooth tethering (unless your N7 has 3G). But then you need a 3G or 4G plan in other phone...
I'm maybe build a customized menu with Zooper Pro, with icons for GPS (tomtom), Radio and USB Audio (jetaudio)..(something fancy like XBMC) and maybe later could add other functions like video or internet browsing.
esotericrj said:
That looks like a very clean install. Nice post.
I have been trying to figure out how to install my Nexus 7 to my car but as it already has a stereo I want to keep i have to find another method.
awesome stuff though !
---------- Post added at 03:15 PM ---------- Previous post was at 03:10 PM ----------
I forgot to ask, is heat a concern for the unit when installed like that and... with the tablet screen on for extended hours is burning an image into the screen not a concern when doing these installs into cars?
I have a S3 which i use as my GPS and do some long road trips. It has now got the point where the map app has burned into the screen faintly. I am wondering if the Nexus 7 would suffer the same result?
Click to expand...
Click to collapse
I've edited main presentation, but I would like to precise that the main stereo unit is kept in this project. Only one simple screen has been removed to be replaced by the tablet. I had the chance in my car to be able to find easy area to put the tablet without needing to remove important unit and replace main stereo.
I'm suprised and not aware about LCD screens that could burn when same image shown during long period. Thought it was for the old screen technolgies. On the other hand, a lot of actual cars are embedding touchscreen tablet similar by default. So I think the technology is now proven. Anyway, I am not using any specific dashboard app for the tablet and so using directly the applications and switching for instance from GPS app to music app.
ruicc said:
Nice, thanks for sharing.
I'm tempt to start something like that in my car, but for now i'm only collecting ideas.
How did you managed to get FM radio on N7?
So far, AFAIK people can get radio on Nexus 7 with bluetooth tethering (unless your N7 has 3G). But then you need a 3G or 4G plan in other phone...
I'm maybe build a customized menu with Zooper Pro, with icons for GPS (tomtom), Radio and USB Audio (jetaudio)..(something fancy like XBMC) and maybe later could add other functions like video or internet browsing.
Click to expand...
Click to collapse
As edited in main presentation, the main radio unit is kept. So FM radio is left to the main radio unit. I'm using the original buttons below the tablet to control the radio. I'm also still using the original stereo volume buttons including the ones at steering wheel.
For the moment I'm using the standard android desktop and widgets that fits to my utilization, as I only use 2 main application for my tablet ; One for GPS and the second for music.
Few updates since last time on this topic.
I've encountered slow charging issue already encountered by some people. It was discharging faster than charging...
It's linked to the connector inside the tablet between USB PCB board and Mainboard. The solution I've found is to solder directly the USB power to the ribbon cable by removing plastic protection enveloppe on it. Now no issue anymore.
Sometimes I had also issues on GPS reception. I've also soldered a 2m length RF cable to the GPS connectors on the board, and passing it to the dedicated windshield area (UV metallic shield free area). I let a 5cm length internal wire of the RF cable visible on this area, and get better GPS fix statistics.
I need to work on this part to finish a proper installation instead of wire visible on the top of the windshield.
On the other side I've also finished the installation of the rear view camera. I'm using USB video grabber (EASYCAP type) + car camera rear view (easy to find for few dollars on the net).
Presentation of the system available on youtube keywords "Nexus 7 DS5" (sorry I cannot post hyperlinks as new user and sorry again comments are in French):
I'm installing an Alpine ILX-W650 for Android Auto in my car next week, and noticed it requires simultaneous Bluetooth and USB connection to the phone. I want an easy way to dock my S10 each time I get into my car, something that's quick, easy, secure, looks nice, won't wear down the type C port on my phone, and charge faster than the 1A provided by the Alpine unit.
If I have to custom fabricate a docking cradle that fits just right in my MK6 GTI, I will, but just want to find the best solution. I have a Baseus auto clamping vent mount with the IR detector and Qi fast charging, and could try affixing a magnetic charging+data capable cable to that so the cable is in place to lock onto my phone's port automatically using the magnetic attraction, but have no idea if that will work or not. I read in one forum that someone was able to wirelessly charge their phone while it's plugged in for Android Auto, anyone know if that will work for the S10? My magnetic cables are the Wsken X1 models, I have no idea if they'll work and how reliable a connection they will provide, anyone try something similar?
Another option I'm considering is using the Samsung Dex Pad as a docking station, and mounting the phone horizontally since I will be controlling everything from my voice and Alpine's touchscreen while driving, and won't need to really do anything with my phone. I asked Samsung if it will work, and they said they've never tested it, suggested that I just try it and find out. I don't want to buy the Dex Pad if it's not going to work, has anyone tested that so I don't have to? Probably will anyway, but it from a place with a good return policy, but am hoping someone out there has thought of this and can enlighten me on what to expect.
Thanks!
otizzy said:
I'm installing an Alpine ILX-W650 for Android Auto in my car next week, and noticed it requires simultaneous Bluetooth and USB connection to the phone. I want an easy way to dock my S10 each time I get into my car, something that's quick, easy, secure, looks nice, won't wear down the type C port on my phone, and charge faster than the 1A provided by the Alpine unit.
If I have to custom fabricate a docking cradle that fits just right in my MK6 GTI, I will, but just want to find the best solution. I have a Baseus auto clamping vent mount with the IR detector and Qi fast charging, and could try affixing a magnetic charging+data capable cable to that so the cable is in place to lock onto my phone's port automatically using the magnetic attraction, but have no idea if that will work or not. I read in one forum that someone was able to wirelessly charge their phone while it's plugged in for Android Auto, anyone know if that will work for the S10? My magnetic cables are the Wsken X1 models, I have no idea if they'll work and how reliable a connection they will provide, anyone try something similar?
Another option I'm considering is using the Samsung Dex Pad as a docking station, and mounting the phone horizontally since I will be controlling everything from my voice and Alpine's touchscreen while driving, and won't need to really do anything with my phone. I asked Samsung if it will work, and they said they've never tested it, suggested that I just try it and find out. I don't want to buy the Dex Pad if it's not going to work, has anyone tested that so I don't have to? Probably will anyway, but it from a place with a good return policy, but am hoping someone out there has thought of this and can enlighten me on what to expect.
Thanks!
Click to expand...
Click to collapse
Hello, I have a 04 Audi A4 with a 13” screen and a Dex pad under my arm rest. Out of sight and protected. I love it! My monitor lets me connect and control my phone via touch screen. Torque app works well on a 13” screen. I also have a dell d10u that I use for tuning while my main unit is my s10. I have enabled developer mode on my Dex and the use "Dex Max" App, It helps out as well.
jcsvsi said:
Hello, I have a 04 Audi A4 with a 13” screen and a Dex pad under my arm rest. Out of sight and protected. I love it! My monitor lets me connect and control my phone via touch screen. Torque app works well on a 13” screen. I also have a dell d10u that I use for tuning while my main unit is my s10. I have enabled developer mode on my Dex and the use "Dex Max" App, It helps out as well.
Click to expand...
Click to collapse
Id be interested in this too. Can you expand a little on your setup? I'm looking to do the same with adding a larger LCD while maintaining touch-functionality via android. I'm wanting to piece together a 10-13" LCD along with a capacitive usb overlay but haven't verified that the touch would work via android along with my CarPC.
As for docking, I've been using a cheap $8 Ebay USB hub with success in both DeX and AA in my setup.
Hope theses pic are visible. I will have to get my other phone to display my setup with Dex running.
Forgot one.
Not the cleanest installation, not the worst.
My high mileage e85 Audi A4. Sorta a "beater with a heater".
Here are some pictures, the few are with screen mirroring with the aid of seconscreen app, overlay app and a few others. The rest are in Dex mode which yelids a better picture however apps don't auto start in full screen, while driving it can be somewhat cumbersome.
Galaxy s10
Sorry, pictures seem to be upside down.
My in car screen layout.