Looking for single wire GMLAN arduino shield

[Gatecrasher]

Does anyone know if such a thing exists? I know you can use a normal CAN interface and just tie the low line to ground if you want to do sniffing, but I'm looking for something that's capable of sending the high voltage wakeup pulse. The only capable general purpose tool I've been able to find so far is the OBDLink MX.

[kidturbo]

I purchased this Hat for the Mega many years ago, it has dedicated single wire CAN port. But not sure they still make em.
https://store.evtv.me/products/arduinoduecanbus

And this one I know a few people who use. Also offers single wire port.
https://docs.macchina.cc/product-docume ... interfaces

[Tazzi]

Mouser had a GMLAN/SWCAN breakout board?
Can then always use some dupont wires to connect an arduino to it?

The macchina design was a bit flawed for their gmlan unfortunately.
They used an external CAN controller (mcp2515) which can occasionally lockup and require resetting to make it all happy again.
The reset pin was not attached to the main CPU so once it was in a bus OFF state, it could not be reset to fix.

I looked into using it as a scantool many years ago but came across that problem. Theres been several other arduino projects which address the buss off problem in MCP2515 controllers as well.

[geep]

does the obdx pro gt have the ability to send the high voltage wakeup pulse on the single wire can