Stepper Power supply V1.2

SatNOGS Hardware
1

Hi Guys
I’ve built everything and programmed arduino , stepper motors do nothing, was wondering about the Pololu A4983 stepper drivers, ive only got 5v on the stepper motors and they dont drive, the A4983 has a minimum operating stepper voltage of 8 V. Am I missing something on the V1.2 board? Do i need to supply external supply for steppers?

Also I can find any info on connecting V1.2 to my already operational Satnogs Raspberry Pi3…

Any help would be appreciated…

Thanks in advance

Brennan

2

Hey,

As you can see,

SatNOGS_Board.png2009×868 40.1 KB

you must use an external PSU for stepper motors with VMOT = 8-35V for A4983

Power Consumption 1
Power Consumption 2

3

Thanks, Yes i missed that…a bit of a noob with these things :slight_smile:
I still do not know how to connect the raspberry Pi 3 to the board?

4

Hey!!

By using a usb cable that connected to arduino pro micro (that used in version v1.2).