ISOBUS Virtual Terminal

[ferdi]

Maybe you can just use the GPS Signal from AgOpenGPS and use the task controller of the VT device as described here:

Output Gps PGNs to tractor Isobus?

Yes those PGNs (not sure about the last one) just need to be broadcast on the bus to the 255 j1939 destination address. Remember in j1939 a CAN ID is broken up into sub fields. PGNs only make sense in this context (in other words a CAN ID can be different with the same PGN, depending on the destination address). Inside a j1939 message is payload (up to 8 bytes), divided into fields according to a formal SPN specification, see below for a pdf. Here’s a couple of functions to compose and decom…