Schematics Errors, pin driving mismatch

[hermit]

Might start here to understand pin types and why you have “mismatch”.

Electrical type of schematic symbol pins (KiCad 4 and KiCad 5)

What are electrical types used for? The electrical type is used by the electrical rule check (ERC) to determine if you made an obvious mistake. ERC is really quite limited. All it does is read all electrical types of pins connected to a particular net and check their combination against the error matrix. Example: By default connecting two output pins together will result in an error. (Makes sense as one output can be high and one can be low resulting in a short circuit between the positive supp…