In point form : The title says a lot. Same CAN hardware (MCP2515), same code, same car (OBD2 data over CAN, via DLC connector) same library <CAN_BUS_Shield-master> Only difference is the MEGA and UNO. But why are the scanned values different? Scanned data below. Thank you for any tips! [CA…

I'm finally able to update, with the following summary: Nothing seemed to work with wiring updates, baud changes, etc. , so an alternate (NEW) Mega2560 was used. This seemed to be part of the issue, but the MCP2515 Module only worked at 1 Mbps, with a chip select of 10 Adding a SEEED Studio, CA…

CAN DATA Discrepancy Between UNO & MEGA

Official Hardware Mega Mega 2560

gilshultz July 16, 2025, 12:06am 2

I cannot answer as I do not know what the data source is. Also why do you initialize the CAN before the SPI? Slow things down and I expect they might work better.

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CAN DATA Discrepancy Between UNO & MEGA

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