ZeroPi experiences anyone?

#1

I successfully ran the servo_stepper sketch with a couple of NEMA-17 stepper motors and the supplied DRV8825 stepper motor driver. I also successfully ran the servo_dcMotor with a small dc motor and the supplied DC motor driver TB6612. Also I ran a micro servo on the A0 pins. So it does work despite the lack of documentation. Anyone else trying out this Makeblock (PN 10701) ZeroPi device?

#2

I cannot reach the ZeroPI.
I connected it onto a jessie driven PI 2 B, installed arduino, but cannot find the board manager to set the board to Arduino Zero.
I would be very pleased, when there will be a python library to drive the motors.

#3

I connected the ZeroPI via Debugger to my PC and was able to drive servos and DC motors.
But I am not able to drive the stepper 42BYG. I connected it green-black-blue-red as A+ A- B- B+.
I’ve got a 5V 4A power supply connected.
In the 42BYG specs I saw 12V as rated voltage. Do I have to connect a 12V power supply?
Did I connect the stepper the correct way? The tips here in the user guide are misleading for me:

May you are confusing about which color cable on the stepper motor should be connected to which port on the driver (A+,A-, B+,B-), Here is a guide of it

  1. Ourstepper motorhas two phase. So it doesn’t matter you change the connection order between phase A and phase B. Which I mean Black and Green could be connected to A orB, Red and Blue could be connected to B or A. And yes, it would change the motor direction.

2, And,
A+:Black A+:Green
A-:Green or A-: Black Both of the connection type are OK.

3, There is only one rule you need to follow, which is you can’t mix them together.

For example, this kind of connection type is wrong, it would make damage to the motor.
A+:Red
A-: Black
B+:Blue
B-:Green

#4