How do you know (IOW, "Who says...") that cable is supposed to work with that device?
He describes it as "OBD2 16-PIN PLUG TO DB9 RS232 SERIAL DIAGNOSTIC ADAPTER CABLE OBD II 2". I would expect to have RX/TX on pins 2,3 and Gnd on pin 5 of the 9-pin connector. The CAN-BUS shield's 9-pin connector doesn't conform to that "convention". The cable seller doesn't give any details as to its wiring.
Does seeedstudio have a recommendation?
They sell this device but not a cable for it?
-They sell this device but not a cable for it? i checked the wiring connection, it is like the below picture
Please i need your support guys to provide me with below:
the request is sending to get the PIDs: CAN.sendMsgBuf(INT8U id, INT8U ext, INT8U len, data_buf);
"id" represents where the data come from.
"ext" represents the status of the frame. '0' means standard frame. '1' means extended frame.
"len" represents the length of this frame.
"data_buf" is the content of this message.