Raspberry PI Module for Robotics Mythololgy (1)

That motor was going free wheel when i don't turn Vref potentiometer.
Maybe I can test my code when I'm back 26th April T^T. It's  late from Deadline Open Hardware Design Challenge.

Old one haven't nice soldering and make  it broke with short circuit . Now my component need to solder in that board are arrived. So I  soldered new board.

It's have short circuit between  input 12V & GND  I need to re-design it more efficiency.

So Fast Arrival! PCB just spend 2$ for pcb 8$ for shipping total 10$  and they make for me 10 board and I just waiting only 10 day . 10- 10 -10  ! (JLCPCB.COM) Now my another stuff not arrive just waiting it.  buck converter lm2596  and header pin 2x20.

I will show it soon. After i get my PCB board part 1 from jlcpcb.com  and I modify it and I send it both to get low price shipping cause board just 2$ and shipping price 7$.

I send Gerber to jlcpcb.com at 2018-03-15 16:19:35 . I spend 2$ for pcb and  7$ shipping it's quit of cheap . Now wait for 3 week to get it .

https://gitlab.com/alphaciel/Stepper_Motor_Raspberry_Pi_Zero.git