My accidentally test with soldering

A project log for Raspberry PI Module for Robotics Mythololgy (1)

Chapter 1 : Raspberry Pi Zero W Stepper Motor Module Balancing Robot and 3d Printer - CNC Machine

alpha le cielalpha le ciel 04/14/2018 at 09:560 Comments

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