MINI_PROTO is an M5Unit size of universal prototyping board. Smaller than the PROTO unit, the size is exactly the same as the regular M5unit. You can have the total freedom to make your own project as you want it, with prototyping boards that allow laying out the customized circuit to interact with the M5 core CONNEXT Port A, B or C.
For different CONNEXT ports, you will be able to interact with different pins that ported out from ESP32.
New Mini Proto Unit 40 Holes