NAC arduino

[drzjbg]

Hello everyone, Im trying to connect my NAC in C3 III with the PSA-Arduino-NAC software without success Im using the following:
Arduino uno R3
MCP2515
Wiring and everything seems correct to me when i send >764:644 command i get OK then 1003 gives no result also when i try to access NAC from PSA-Arduino-NAC software nothing happens, anyone who has a wiring diagram how exactly it has to be done and share some tips on something that maybe im missing?

[windy1603]

Have you selected the right comm port for your Arduino in the Arduino-NAC software settings

Also double check the speed of the MCP2515 in the sketch the default is 16Mhz and most MCP2515 I have seen are 8Mhz