Programmable CAN Bus Box: Control & Expand

Hello!

I'm (unfortunately) a beginner when it comes to CAN, Atmel, MCUs, etc., but I have a rather simple question:

I am looking for a programmable CAN interface module.

'That means, for example, if I put the car in reverse, the transmission registers that and automatically switches my RNS-E to TV mode via CAN bus (e.g., to display the rear-view camera).'

Or I press the volume up/up/down/down buttons on the steering wheel, and the car's control unit recognizes it and opens the trunk.

'Or, I have some unused buttons left over from a navigation system that was connected to the CAN bus. These buttons haven't been used since I modified my A4, but they still transmit data when pressed. Now, I want to intercept the transmitted data in the box, transform it, and re-transmit it, meaning converting message 12345 on ID 1234 into message 0001 on ID 441, etc.'

Has anyone by chance seen something like this before, or can you give me a tip where I can find instructions? I'm building something similar myself using an Atmel with an MCU, etc., but I would need a kind of how-to/tutorial with corresponding circuit board layouts, etc. At least a tip about a basic schematic that can do this would be enough for me; it doesn't need to do anything fancy, just read, understand, and transmit . I think I'll manage the programming part, as I already have experience with C(++) .

If anyone has already created something like this commercially and wants to sell it, they can feel free to send me a private message.
I can reprogram the board or the CPU to suit my needs.

Sure, here's the translation:

'Thank you.'

I have some units available from a small production run that are now in excess. The circuit is based on the PIC18F2480 microcontroller and features 4 inputs for door contacts or similar sensors, an I2C interface, a CAN interface, two LEDs, and an RS232 port. It connects via a 20-pin AMP connector and comes in a small enclosure with mounting tabs – essentially a 'black box.' It can both transmit and receive data over the CAN bus. Sample programs are available. It is sold as a kit, either with a bare PCB or fully assembled.
If you are interested, please send me a private message.

Kannst du Infos hier reinschreiben?
Wie wird die Box programmiert?
Welche Sprache?
Was soll sie kosten?

SGM

I am using the following environment for programming:
IDE: MPLAB 7.50. I'm programming the device using C (MPLAB C18), but assembly language is also possible.
Programming device: ICD2 from Microchip, debugging is possible with it.
Cost: €79.00 plus VAT for the kit (assembled board + enclosure). You will receive a proper invoice.
No E1 approval and no CE marking. For private use only.

Example software is not included as standard; it is available optionally at a cost of €99.00 plus VAT per user, as a one-time 'usage fee.' Commercial use on a large scale and redistribution are expressly prohibited.
Extremely helpful for getting started quickly. Further development and improvement are possible and encouraged.

Currently, I am developing a version of the black box that, instead of RS232, has 4 high-side outputs (maximum 0.7A). This will allow for the implementation of smaller control tasks.

Interessant!
Danke für die Infos!
Sure. Please provide the text you would like me to translate from German to English. I will only provide the translation, without any explanations.MSGM

I once posted a small circuit diagram on this forum; you can easily program it using BASIC (or even with GNU/GCC!).
The total cost is approximately 20 euros, including VAT, and it can also be used for commercial purposes.

Here are some pictures of the described CAN box:

http://www.drivelog.de/canbox/canbox.jpg
http://www.drivelog.de/canbox/canbox_geh.jpg
http://www.drivelog.de/canbox/canbox_stecker.jpg
http://www.drivelog.de/canbox/stecker.jpg
http://www.drivelog.de/canbox/Anschlussschema.jpg

It looks verschandeln .
Welcher Transceiver ist eingebaut?

SGM

MCP2551 or PCA82C25X or compatible...

Is there anything else from you, @haui?