Sniffing the CAN-BUS with the SuperSniffer Software v1.xx

Re: Sniffing the CAN-BUS with the SuperSniffer Software v1.x

Postby JacquesJNel » Tue Jan 10, 2017 2:24 pm

Perfect.

The displays basically work in the same way as a car they have a 24+ ground CANH and CANL. But I cant wait to hear from you, been playing with the super sniffer software you made and looks like it might be everything I need but lets take it step by step.

Regards
Jacques Nel
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Re: Sniffing the CAN-BUS with the SuperSniffer Software v1.x

Postby MartinViljoen » Tue Jan 10, 2017 5:11 pm

Hi Jacques.

What you want to do sounds very doable. Sending a message into the bus is really easy.
Getting the message that you wan to send is more tricky but I imagine a lift has nowhere near as many messages as a vehicle has.

Reading an input message from a relay into the arduino is also super simple. As long as its a small amount of DC (I think it has to be below 5v)
Sounds like all you have to do is get the message you want to send, If you can give me the message I will be able to create you a sketch that will accept an input from a relay and then transmit the message to the Lift display.
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Re: Sniffing the CAN-BUS with the SuperSniffer Software v1.x

Postby JacquesJNel » Wed Jan 11, 2017 1:05 pm

Hi Martin

I am thinking of using you Super Sniffer and plugging it into an existing elevator's CAN bus.

Could it be as easy as just plugging it in, sniffing the bus and bobs your uncle?

As for the code I would very much appreciate it you can write me some code, I am very much a beginner when it comes to coding and a bit lost. For learning purposes can you maybe write me the code and leave the message that needs to be sent blank (or even write your name in place of the code?) so that I can slowly read up on what the code means so that I can understand it better?

Also how would I go about finding out what settings/ baud rate to use to sniff the code or is this a case of trail and error until the right one pops up?

Thanks a lot for the replies and help on this matter, means a lot

Kind regards
Jacques Nel