Hi,
I'm thinking of building a PLC-type module for automotive use.
Lots of 12V IO, relay drivers, CAN bus, bluetooth.
I feel like the automotive use-case may require extra hardening against various effects like noise on the bus due to injectors/sparkplugs etc -> filtering, zeners, surge arrestors?
Questions:
Am I right that there are special considerations required for automotive circuits?
What sort of considerations?
Any good references about how to adapt to those problems?
Reference designs that implement them?
Thanks