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I am working on an undergraduate project, looking to effectively create a car dashboard. As a result, my board would have to interface with:
1)A touchscreen, ideally touchscreen for control
2)CANBUS, receiving information from an ECU.
3)GPIO, i.e. input switches.
Is there any all in one system which can do this? I was considering the raspberry pi but I am unsure hugely here due to the problems with interfacing with so many things at once.
Mrinank
The Pi should be perfectly capable of this. Your only problem is the CAN interface, as the Pi does not provide one by itself.
You can either look for an external controller, which would need to be interfaced as well, or implement the protocol with software, using 3 GPIOs.
This hardware solution for example, would be addressed with SPI, which is directly supported on the Pi.
The Pi's header offers well beyond 20 GPIOs fulfilling your needs. Take a look at this to get an idea of the CAN on Pi topic
Using a CanBUS transciever IC is the best choice for you, At this point, u have to consider this, CanBUS is a differential signalling and adapting a car with CanBUS is a not-easy work, this is totaly a challenge, Cars use standarts to operate correctly through CanBUS, First, you have to decide which car to apply this CanBUS node, Read this thesis presentation for becoming more clear to develop a board inside a car,
At CANBUS, You have to consider bandwitdh, thao times for catching bits in true way, buy or develop a chassis for pi to protect it from emi inside a car,
At the software, the highest priority has to be owned CanBUS receiving or pulling interrupts, because it can be fast more than you expected, but, it is all about the car that u wanna apply node in,
Sincerely
