Comms code is from https://github.com/MielArrojado/speeduino-ardugauge
Sync loss counter is not exposed on secondary serial by default. I added it to cancomms.ino manually: fullStatus[122] = currentStatus.syncLossCounter; also increased NEW_CAN_PACKET_SIZE in cancomms.h from 122 to 123. If you don't need that, you might want to change DATA_LEN in Comms.h of this project back to 122 and remove fetching this value from main ino file.