Hello all!
I am trying to send a simple message across a CAN BUS and have a question. Do I need a CAN Interface? I have a simple message the identifies the controller I want to listen then tells it what to do. Can I not simply connect the TX and RX of the Arduino to the Can HI and CAN LO and send the data byte?
Hello,
ferdkilla:
Do I need a CAN Interface?
Yes.
Can I not simply connect the TX and RX of the Arduino to the Can HI and CAN LO and send the data byte?
No.
Ok now. I have a mcp2515 to work with. The message I need to send is pretty simple. I need to send ($21,$C0) do I just simply us the SPI interface and say hey Arduino when I push the buttons tell mcp2515 to send $21,$C0 ?
You are far better off to find and use a library. This would be a good place to start...