Replacement Driver Board

Rather than replace the dead components (all of them) I decided to move to WiFi.

I am also moving away from strip-board construction as PCB manufacture has become very affordable.

This time I will use a standard CNC stepper driver board (a clone of the Protoneer Arduino CNC shield) with the WeMOS D1R1 (an Arduino compatible ESP8266).

Here is the pin mapping:

I am using DRV8825 drivers but will limit the current to 1.5A. I will be using a 12 volt battery pack.

Here is a pretty close approximation of what the WeMOS and stepper driver package will look like (image from the Protoneer ebay listing - Cheap at only US$20 but without the Arduino and the A4988s):

(source: http://i.ebayimg.com/images/g/5bsAAOSwUV9Wovve/s-l1600.jpg)

AlanX