Built a Single Axis Version of this Board

A project log for Stepmotor Driver Board for TI Tiva Launchpad

Three axis stepmotor driver, limit switch conditioning and power supplies.

BharbourBharbour 06/28/2020 at 00:010 Comments

In an attempt to get rid of the radiated noise from the Theta Axis on my antenna  rotator, I designed a single axis version of this board #Single Axis Step Motor Controller/Driver Board 

Instead of using an Eval board, I put the CPU directly on the new board. In the time since designing the 3 axis board, I have changed CAD systems, so the new board was designed on the newer CAD system. The single axis board is close enough in design to this board, that I was able to test the single axis board with the firmware from this project with no modifications.

A new version of this board has been designed in the new CAD system, but has not been sent out for fabrication yet. It also has the CPU directly on the main PCB, has better power input filtering, and fixed the two blue wire mods needed on the original board. It is also smaller.