Hello again!

I ended the motor board schematic and now I on tracing way.

Motor board based on four L6205 ICs as I told earlier. It giving possibilities to use four stepper motor for more precise movement, But if you don't need this, still can connect up to 8(!) dc motors.

Also I added possibilities to connect 8 Hall sensors like SS495A or 4 slotted optoisolators (MOC7811 or similar) for even more precise moving.

Board need three types of powering:

+ VCC(3.3V) for logic levels which connect directly to the microcontroller or singleboard computer

+ 5V for Hall-sensors

+VDD for motors (maximum 24V)

Stay tuned and check Github page.