NSFW

I didn't know about this... Could you have the J2534Device class call use that method to set the MaxSendSize / MaxReceiveSize properties? That way the serial devices would continue to...

That's an interesting idea. One of the other things Pete suggested was to NOT write the top block first (which we currently do) because it contains a signature that the...

Good points.

Thanks! I'm reopening this issue to make sure it is taken into consideration as we work on the new app.

Thanks for doing this!

I'm testing it with a Mega2560. I have it wired up to a General Motors P01 PCM and an OBDLink SX, which are happily sending data back and forth. The...

Thanks, I'll give that a shot. Here's a picture. This was taken after I cut D3 to focus on troubleshooting the input side. 

I'm pretty sure the transistor orientations are correct. EDT: because I was looking at the wrong image. Here's a correct image:  I forgot to mention that there's a trace...

I've tried RX on pin 7 (I designed the shield to use that pin, but don't recall why) and 10 (since the sample code used 10), with a jumper wire...

I have confirmed with a scope that T2 was backward. At the RX pin I get 0 or +5v, and it matches the shape of the raw VPW line. So...