Working on a new drop-in CAN module

Working on a new drop-in CAN module#62284

By SPEngineering - Mon Apr 03, 2023 7:25 pm

- Mon Apr 03, 2023 7:25 pm #62284

Hello everyone! It's my first time posting here but I'm starting work on a new drop-in CAN module for speeduino boards. I'm currently building it out and testing it, but I plan on open sourcing the hardware and software once it's done.

I'm looking for devices I can test with, dash clusters, indicators, external control modules. Stuff I can put on a can bus and poke and prod at. Recommendations? Suggestions? There's a junkyard nearby I can grab stuff for cheap.

Thanks!

Re: Working on a new drop-in CAN module#62290

By dazq - Mon Apr 03, 2023 11:36 pm

- Mon Apr 03, 2023 11:36 pm #62290

Hi,
What is it you are offering with this different to the current canbus support in place?
A few co processor boards have been created along with the integrated support on stm32 and teensy.

Quantum Coupe with V04 on Ford 1.4CVH,Quantum 2+2 with Custom V04 on Jaguar 3.0l AJ30 V6
mini GPIO :done More soon
CANbus broadcast interface: done
Simple sd logger :done
External CAN io: Inputs :done
Gearbox controller: working

Re: Working on a new drop-in CAN module#62293

By SPEngineering - Tue Apr 04, 2023 12:23 am

- Tue Apr 04, 2023 12:23 am #62293

Well, I did intend this to be used on the mega boards. I am also hoping to include SD card logging in the same device.

Re: Working on a new drop-in CAN module#62294

By dazq - Tue Apr 04, 2023 7:31 am

- Tue Apr 04, 2023 7:31 am #62294

SPEngineering wrote: ↑Tue Apr 04, 2023 12:23 am Well, I did intend this to be used on the mega boards. I am also hoping to include SD card logging in the same device.

Ok ,so your are making a coprocessor board design.
You said
"I'm looking for devices I can test with, dash clusters, indicators, external control modules. Stuff I can put on a can bus and poke and prod at"

So you are looking for OEM parts? What are you looking to do?

Some Examples available
Pazi88 coprocessor board talks some BMW models and sends dash data out,reads vss and other data in.
Is this what you are looking at?
Jama has a board he is due to release ( he is diy-efi store)

Quantum Coupe with V04 on Ford 1.4CVH,Quantum 2+2 with Custom V04 on Jaguar 3.0l AJ30 V6
mini GPIO :done More soon
CANbus broadcast interface: done
Simple sd logger :done
External CAN io: Inputs :done
Gearbox controller: working

Re: Working on a new drop-in CAN module#62295

By SPEngineering - Tue Apr 04, 2023 2:18 pm

- Tue Apr 04, 2023 2:18 pm #62295

Yes, I am making a coprocessor based board. I probably should have explained more. I am looking for standards compliant CAN devices to test my gateway against and make sure I'm doing it right. Because just putting it in loopback mode isn't much of a test.

Re: Working on a new drop-in CAN module#62520

By SPEngineering - Mon Apr 17, 2023 8:38 pm

- Mon Apr 17, 2023 8:38 pm #62520

OK! After replacing some faulty hardware I have the CAN bridge functionality working. I am now moving forward to add on-board data logging. Also looking to add RTC or GPS for time/location keeping.

Re: Working on a new drop-in CAN module#62578

By Mr_Hypnotic - Fri Apr 21, 2023 10:30 pm

- Fri Apr 21, 2023 10:30 pm #62578

Sounds interesting. What inspired you to make this?

Re: Working on a new drop-in CAN module#62579

By SPEngineering - Sat Apr 22, 2023 1:09 am

- Sat Apr 22, 2023 1:09 am #62579

Why the mother of all invention of course, boredom.

Re: Working on a new drop-in CAN module#62624

By Spesh - Mon Apr 24, 2023 1:45 am

- Mon Apr 24, 2023 1:45 am #62624

Theres a guy on facebook making a 'budget' digitial dash thats pretty good, Nextgenefi. Have a look, his dash works on serial 3 and canbus so could be a good test. The chap is also very communicative

I'm running a mega 4.4 so am super interested in adding SD logging on board, canbus would be a bonus.

Re: Working on a new drop-in CAN module#62652

By SPEngineering - Tue Apr 25, 2023 6:06 pm

- Tue Apr 25, 2023 6:06 pm #62652

If there is anyone here knowledgeable about the speeduino secondary serial code here? I have some questions.

Does the code respond to in-flight requests before making a new one or will the conversation be interrupted?

i.e. I send the ECU a request for data and wait for the response.
The ECU responds to me before polling for new data from the CAN bus.