GOALS, allow home assistant to send message to subtly change charging profiles on sunsynk inverter according to upcoming sun predictions;
ideally change voltage level on overnight setting from 48.9 to 45v for example Working out canbus messaging
log into venus pi and run command:
root@Venus_OS:/data# candump -tz can1,176:7FF
results are;
(047.998600) can1 176 [8] 3C 3C 3C 3C 4D 00 60 39 (048.440567) can1 176 [8] 3C 3C 3C 3C 4D 00 70 F4 (048.882475) can1 176 [8] 3C 3C 3C 3C 4D 00 80 8B (049.324418) can1 176 [8] 3C 3C 3C 3C 4D 00 90 46 (049.785207) can1 176 [8] 3C 3C 3C 3C 4D 00 A0 0C (050.227168) can1 176 [8] 3C 3C 3C 3C 4C 00 B0 4E
this outputs all ID 176 (see here http://manpages.ubuntu.com/manpages/bionic/man1/candump.1.html for mre filters)
id 351,355,356 are battery states as per https://drive.google.com/file/d/1gLMKXn3o4TW2vFnEVgG0mYSF5xp7_6Uu/view
Cansniffer is good to:
root@Venus_OS:/data# cansniffer can1 -c -t 0
More canbus hacking: https://www.carhackingvillage.com/getting-started