I am pretty tired of this cheap out-of-date Android 4.4 head unit.
I realize I want to take the guts out of the unit and put a Raspberry Pi 3 in it so I can get Android 6 or 7 on the unit. Could anyone push me in the right direction on how this would happen?
Currently I have a Joying rk3066. All I really need is to somehow reuse the the screen however I am unsure how to do that.
Duplicate Post
So I looked into this and this may be easier than I initially figured. You do not need to replace the guts of the head unit with a Pi. There is a much simpler way. I rain into a RP3 case that holds a 7 inch LCD screen.
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The case cost $19.99 and can be found here.
Then there is the LCD screen itself that goes into the case.
That screen is $67.99 and can be found
.
Then you add around $35 for a Raspberry Pi 3 and then that is all. All you need to do is mount it in the vehicle and put android onto the Pi 3. BAM! Instant Upgrade! The Pi 3 has already available to run Android 6 and more recently Android 7.
Hello,
interesting project.
Some questions:
- how to implement air radio, sound amplifier, GPS, handfree control (voice command/vehicule commands)?
I've got one of the official raspberry pi screens and its larger than a double din opening by quite a bit.
fabien_m2002 said:
Hello,
interesting project.
Some questions:
- how to implement air radio, sound amplifier, GPS, handfree control (voice command/vehicule commands)?
Click to expand...
Click to collapse
I read up a little on this. Here is what I found...
GPS...
http://www.mr-lee-catcam.de/pe_cc_i6.htm
FM Radio...
http://www.ebay.com/itm/Breakout-Bo...473021?hash=item281656b4fd:g:NlQAAOSwfZhXMtTS
Audio...
http://www.ebay.com/itm/HDMI-to-HDM...r-Converter-/201574747216?hash=item2eeeca8c50
Steering Wheel Control...
https://www.amazon.com/Axxess-ASWC-1-Universal-Steering-Interface/dp/B00B4PJC9K
All this hardware seems incredibly inexpensive.
leonkernan said:
I've got one of the official raspberry pi screens and its larger than a double din opening by quite a bit.
Click to expand...
Click to collapse
I've learned that there are smaller screens you can buy. 7 inch, 5 inch, 3.5 inch, etc. They are pretty inexpensive too.
This seems like a very interesting idea. Here is another one for the GPS - https://www.adafruit.com/products/790 Also, check this out https://www.youtube.com/watch?v=qtzrVj66IOA&t=6s
Several Raspberry Pi head unit projects have been spawned.
Most end up being very custom if they succeed ...some are half-baked and end up orphaned.
Compared to a pre-built head unit, most end up costing more and doing less.
However, the experience of learning through DIY usually ends up being the continual draw to keep on trying.
This looks like one that was a success:
http://engineering-diy.blogspot.com/
This is a good article/tutorial, but a little outdated. It does give you the basic ideas, need something newer though.
tbd2k2 said:
Several Raspberry Pi head unit projects have been spawned.
Most end up being very custom if they succeed ...some are half-baked and end up orphaned.
Compared to a pre-built head unit, most end up costing more and doing less.
However, the experience of learning through DIY usually ends up being the continual draw to keep on trying.
This looks like one that was a success:
http://engineering-diy.blogspot.com/
Click to expand...
Click to collapse
I've seen some of those units with that interface.
I wouldn't mind a regular Android interface, I wouldn't need that UI. Still, a Pi 3 with that setup has potential if you are able to download and use apps off the Play store. That is a huge deal for me and a deal-breaker if unable.
Google search i-carus
Related
Used magnetic base stand from a dial indicator to hold GNex while mirroring output through MHL adpater to my second computer monitor at work. I used some flexible preforated pipe strap to clamp together the micro usb plug part of the MHL adapter and the 3.5mm audio plug tightly parallel so the phone can be set straight onto them. The audio out goes to some cheap PC speakers. Using an Apple magic trackpad to control via bluetooth ala Living Digitaly even though I loathe apple, no good substitute. But it does work seamlessly and intuitively, so I gotta give it up. The rest of the bracketry is adjustable to any angle and has a support arm to keep some force off the connectors. I chose to use these material because we had them lying around my office, other material could easily be substituted. No solution yet for the rat's nest of wires. It seems solid and should be a simple project for the adventurous. Check out my other project, a pogo pin car dock
The video!
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Changed configuration a bit to lower center of gravity, ease docking, and unblock monitor.
Thats awesome!
interesting, does the trackpad work out of the box or did you do some scripting?
Plug and play! Its a shame its apple, and works very well, because I would much rather used something from an android or aftermarket manufacturer. It was also damn expensive, but worth it in the end once you are all lazy on the couch and the phone is ALL the way over by the TV.
That is amazing!
Sent from my Full AOSP on Toro-VZW using xda app-developers app
I like the look of this, it looks kinda steampunkish with the metal rods showing like that. Also like someone else has said previously, to bad you are using the apple track pad thingie. As natural as that may be, I dont want to give my money to apple. It's unfortunate that no third party businesses make any of those or something somewhat similar.
That someone was me. still use this one at work even though I made the ultimate glow dock. I'm an admitted apple-hater, but they sure whipped up an unparalleled interface. Too bad for them, its best use is on Android!
Inspiring setup! :good:
Could you tell me what ROM/Launcher/Dock you are using? Looks very appealing.
Streaker said:
Inspiring setup! :good:
Could you tell me what ROM/Launcher/Dock you are using? Looks very appealing.
Click to expand...
Click to collapse
Sorry for the delay.... FNV rom, Nova launcher without dock,digital hive LWP, blue PCB theme from scar45
Update! Now Nexus7 + Gnex dock!
Hey All,
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It seemed like an impossible task. To get more the two audio channels into and out from the Pi over the GPIO header. Lots of people wanted that functionality but no one could work out how to do it. I decided this product would have the potential to completely enable and transform other peoples projects. Not only, that if it could be done on the Pi, it could be done on most other embeded boards. It would empower people by solving what seemed impossible. Beyond that, the outcomes for the developing world would be to put an ultra low cost multitrack recorder into the hands of people who otherwise may never be able to afford it - a sub $150 professional grade multitrack recorder. Who knows what people would invent with it !
I put together a plan and began hacking from paradigm to paradigm, making small incremental steps. It felt like I was building a rocket going to the moon for the first time ! No one ever thinks of low level hardware/software hacking as sexy, so it never makes the news
After months and months of struggling, first with purely analogue electronics, ECL logic and all sorts of tricks, I got really close. Sooo close I could sense the signals were going in the right direction - it just needed a little more. But that little more certainly wasn't going to come from analogue electronics alone. I had to change directions.
I decided to learn VHDL and started using FPGAs. On the weekends, whilst guarding my daughter's infant sleep cycles, I would read free range VHDL on my phone or laptop, gradually grasping this non procedural way of "the hardware". Finally after months, at the digital hardware level, I was able to get 8 channels of audio into and out from the Pi hat. Eureka! It is incredibly reliable. So functionally attractive and reliable that it had to be let out of the box ! And so it began ....
Come join the fun and checkout the Audio Injector Octo Pi kickstarter.
Matt
p.s. It is arguable that $150 is still well out of reach for a lot of people in developing nations.
so you made an 8 track player that has hdmi? thats awesome.
So close to what I'm looking for... an 8 channel audio ADC to HDMI LPCM converter.
I've joined the Android HU community earlier this year when I bought a 1GB MTCD rk3188 (Eonon) device. Needles to say, even with microG and reflashing everything, I am experiencing buyer's remorse. I even found myself going back to RNS510 every other week.
With the first purchase going awry, I am now turning to the MTCB part of this community to hopefully find a more flushed out product. Preferably something that runs KitKat and has 2GB ram for the future. The ability to playback h.265/h.264 would be great as well. My current VW OEM unit's design is this:
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. At the risk of sounding obvious, it matches the VW design well so I'm trying to pick my second Android HU to kind of have the same aesthetic.
Do you have any recommendations? What's the best MTCB device out there now generally speaking?
Thanks.
I will say this: SKANDINAV CAR ANDROID CARPLAY OS LTE GPS NAVI RADIO DAB + For VW vehicles
https://www.real.de/product/320864294/
Atlanntas said:
I've joined the Android HU community earlier this year when I bought a 1GB MTCD rk3188 (Eonon) device. Needles to say, even with microG and reflashing everything, I am experiencing buyer's remorse. I even found myself going back to RNS510 every other week.
With the first purchase going awry, I am now turning to the MTCB part of this community to hopefully find a more flushed out product. Preferably something that runs KitKat and has 2GB ram for the future. The ability to playback h.265/h.264 would be great as well. My current VW OEM unit's design is this:
. At the risk of sounding obvious, it matches the VW design well so I'm trying to pick my second Android HU to kind of have the same aesthetic.
Do you have any recommendations? What's the best MTCB device out there now generally speaking?
Thanks.
Click to expand...
Click to collapse
What was the problem with the first Android HU you bought? The make of an Android HU is not so important as long as you buy a model for which you can install an alternative firmware . I have this one in my Skoda car (same as Volkswagen): http://xtrons.com/pb86unvp-8-hd-dig...yer-custom-fit-for-volkswagen-seat-skoda.html and I am satisfied because I am using the MTCD Firmware from Malaysk which you can find here in the forum.
Regards
Kurt Lund
MCU Version: MTCE_HXD_v3.30a_2 , from Aug 8 2019 10:51:10
Aliexpress item ID: 32812618751
Hi Guys,
I've recently bought and installed the above mentioned head unit in my car, all singing all dancing with DSP, 4GB of RAM and 64GB of ROM Storage, and been fairly happy with it: It's snappy, fairly well built, the sound quality is OK...so far I've installed the external mic on the overhead console and the rear parking camera which is working great with FCAM.
Now, I'm looking into installing the front parking camera (not DVR, or AUX Video IN...the proper FCAM CVBS input mentioned on the fairly well known MTCD PDF Diagram). I've read on the forum that some MTCD units shipped with a missing connector, and that a quick soldering job to the connector pins within the main board would do the trick... Back in 2017, @hugovw1976 was forced to do a hack job of soldering pin 3 of the FMS6502 chip, plus adding the required condenser to tap into the said input.
We're in 2019 and my unit seems to be quite polished (not the installation or user manuals though) with no missing connectors and quite a lot of undocumented (and unused!) pins in the back panel. I've tried to get the complete pinout from the seller to no avail...conversations on Aliexpress have been frustrating at best, and infuriating at worst. I'm now resorting to the wealth of knowledge amassed on this forum, looking for a kind soul who might be familiar with this particular head unit backpanel pinout to help me out? Here are a few pics:
Back Panel:
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Included Wiring Diagram (sucky), upon close inspection you'll notice that there is only reference to the back camera (top left, 4 pin sub-connector, with only the left-most 2 pins being used...tried using the remaining two which didnt work), also, the bottom right 8 pin connector is completely undocumented on this diagram, I tried every vertical pin pair with the camera but F-CAM didn't pick it up as the front camera...):
Main Board:
As a suggestion, try validating connections from MTCD schematic, forum thread found in my signature. It may not be perfect, in terms of component numbering, but good enough for someone with medium level electronic skills.
marchnz said:
As a suggestion, try validating connections from MTCD schematic, forum thread found in my signature. It may not be perfect, in terms of component numbering, but good enough for someone with medium level electronic skills.
Click to expand...
Click to collapse
Thank you, I know about the diagram, and see that others have tapped into pin 3 (IN2, FCAM-CVBS), but I was avoiding having to solder on those tiny legs....the MCU in particular seems quite hard as to not short anything...I'm hoping that my unit has the FCAM-CVBS input circuit already in place towards the back panel pins
mgomespt said:
Thank you, I know about the diagram, and see that others have tapped into pin 3 (IN2, FCAM-CVBS), but I was avoiding having to solder on those tiny legs....the MCU in particular seems quite hard as to not short anything...I'm hoping that my unit has the FCAM-CVBS input circuit already in place towards the back panel pins
Click to expand...
Click to collapse
The idea is to trace back, to validate the pins or identify what is needed to implement front video function, incase the pins might be correct for front video, but manufacturer has omitted components.
Retrocamera
I tried to connect on a px5 Mtce has (Dasaita) mcu 3.4 universal rear view camera on Renegade, without connecting PIN reverse canbus, powering up reversing light. For a while with fcam it went (not automatically) but with time I think I burned the camera. Now the led light works but on the screen I only see rustles and the navigator monitor turns off after 10 minutes. Which are the right connections
I recently purchased a Hizpo Android headunit with 9.0 it has 4gb of RAM and 64 internal storage. Anyway my question is, I noticed that the mp3's audio seems to sound alot better than just the FM Tuner. The FM audio sounds really weak. Is there any adjustments I can make to the settings or is that just the way it is. I have a 10 inch kicker Sub that is self amplified and sounds good on the mp3's but on the Tuner it is almost non existent. I don't have the external remote gain for the Sub, but is that what I need to get the sound closer to where the mp3's sound? The unit is installed in a 2007 Ford supercrew cab truck.
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Sent from my SM-A705MN using Tapatalk
Sometimes you need a signal booster like this and blue wire needs a 12v+
with-style said:
Sometimes you need a signal booster like this and blue wire needs a 12v+
Click to expand...
Click to collapse
Hi,
I have looked on amazon.ca and wasn't sure which of the several units were what you were recommending.
There was a Mr Ho product with many positive reviews. here is a link;
https://www.amazon.ca/Mr-Ho-Antenna...ar+radio+signal+booster&qid=1605705299&sr=8-9
Can you share details on the product you recommended ?
Perhaps a web link or product name etc.
Thanks From Nova Scotia,
I've seen this.
with-style said:
Sometimes you need a signal booster like this and blue wire needs a 12v+
Click to expand...
Click to collapse
I used to have a cheap unit that I got from Ebay. It worked well enough to watch live TV through using PDA net. Great for long drives. My boss and I watched a Monday night game when we had to make a five hour drive. Be careful though. My TV service was noticeably lower than the MP3 volume and equalizer effect. I had to get a get an app to fix the issue. This was on an Android 4.2 and it was five years ago. I do know that they have apk's that balance the sound. Another option is to look at the code. Its not too difficult to figure out. This morning I found the one on my phone that sets the Bluetooth volume way low when it is channeled through a speaker. It was in the ".etc" file. Coders usually do a fair job at labeling each section. It was easy to see that the headphone, call, and hearing aid were all set with maximum values of 4800 with steps for each volume reference at double the speaker that was set at 2800. Careful with this though. If you're driving the sound through an amplifier, as I think you are and should with 10" subs, then you stand a chance of burning up the amp and/or blowing the speakers if you put too much out from the head unit pre-amp. Its better to adjust the MP3 down rather than the FM up.