MCU/MPU module standard (System on module / Computer on Module)



My name is Satyan Raj, I work as a hardware engineer with Imbrios Systems, India.
I wanted to check if there is an open standard available for MCU/MPU module (like System-on-module (SoM) / Computer-on-Module (CoM)) which can be used to develop new hardware for IoT and Industrial application.
As per my knowledge, most of the SoM/CoM module have their own pinout standard. I guess this is done intentionally as it would be harder for customers to migrate from one manufacturer to another.

I would also like to also get inputs from the hardware community on this topic like interfaces widely used in the Industrial IoT and automation.



SMARC is a standard followed by a group of Computer module manufacturers: