Tablet as a car's multimedia system
Hi,
Over a year ago I made a multimedia system based on the Nexus 7 tablet. The goal was to create an interface that would provide many functions previously implemented by several devices. Assumptions:
- Yanosik support on a large and clear screen and playing messages through the factory audio system,
- Navigation - goals as above,
- Playing your own songs and internet radio functionality through the factory audio set,
- No cables or wires tangled in the cabin,
- Minimal interference in ori radio,
- The ability to easily disassemble the tablet.
Designs of this type are becoming very popular, perhaps the following material will encourage some of the forum users to build such an interface. The car is a 2005 Honda Civic. The mechanical components are a purchased casing and a dock made of fiberglass and epoxy resin. The tablet can be charged / audio streaming to the radio via the docking connector located on the edge. Control of functions such as sound source, charging mode, reset are carried out via bluetooth (HC-05). In addition, the app on the tablet receives in the background information about the voltage of the installation, charging current and temperature of the converter.
If the topic is of interest, I will provide more details. I estimate the cost of building the interface at about PLN 100, excluding the tablet and most of the components that came from my inventory.
Unfortunately, I lost the file, so I'm uploading the video via the link:
Link
Comments
How did you "get along" with the original radio? Does it have an aux input? [Read more]
Made very nice, especially in relation to the design presented a few months ago, where a netbook was used. You followed the trend, why a display as a user can have a tablet and you did it really well. ... [Read more]
Great idea. I would love to read more about the implementation of the entire project. I have been thinking about something similar for some time, but in Megan I. I was thinking mainly about using the raspberry... [Read more]
What is this software on this tablet that can be seen with four windows? I am especially interested in internet radio, could you please share something like that? I have an android multimedia station and... [Read more]
ELM327 with BT module can be bought for $ 4 with shipping and you have engine OBD in almost every car. Only the reversing cameras are missing and in one tablet you included everything from the retrofitting... [Read more]
How did you make the exit interface from the tablet? These are some original docking pads, did you have to derive signals interfering with the structure of the tablet? [Read more]
Is it really hard to find that in a few seconds you can have an answer using a search engine? http://obrazki.elektroda.pl/9576625500_1466806601_thumb.jpg Source [Read more]
I once wondered about a similar solution and came to the conclusion that the tablet display will not withstand high and low temperatures. [Read more]
30,000? You exaggerated a bit. Today's cars for PLN 50,000 have what the author wanted :) [Read more]
Skaktus - but the author has obtained this at a much lower cost, and whether it will be stable, etc. As factory-made and reliable solutions, the test of time will show :) I would be tempted to do something... [Read more]
I recommend http://ai2.appinventor.mit.edu/ http://obrazki.elektroda.pl/7910894700_1466854960_thumb.jpg There is a pulley that sips the link to the stream and allows you to play it. I think it is... [Read more]
Indeed, it begs to be expanded as a service computer for reading OBD, the problem probably with finding software for Android. Overall very cool [Read more]
do obd np. Link [Read more]
It may be useful: The heart of the system is Mega8a. I used analog pins for: - temperature measurement of the tablet charging converter, - charging current measurement, - supply voltage measurement, ... [Read more]
Hello.. I had the same problems as my colleague above regarding interference from the converters powering my tablet - the worst thing was when the sound was turned off, and my circuit lacked the amplifier... [Read more]
Well, too weak functionality for me. The same gives me a 5.5-inch phablet hung on the glass and even more - because it also records my route with a camera. The cord is one power only. In addition, I have... [Read more]
Congratulations on a successful project. There is also something missing in my car. If you could post a detailed description, I would be grateful. [Read more]
Stanil, what would you like to know? The description of the app, connection to the radio and the most important parts of the diagram and description of the operation can be found in the answers above. ... [Read more]
Hello, a very interesting project, but I am not clear about the data transfer, the value to the tablet from atmega, for example: voltage measurement or any data and is it here? [Read more]