External 5V Stepper Driver
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Hi All,
I need to drive several external stepper drivers (http://www.longs-motor.com/stepper-motor-driver-dm860a.html) which require 5V differential inputs. I know the Duex provides 5V, but is it possible to take the differential signals straight from pins on this board or does it only have motor connections? I have tried running the drivers from the 3.3V straight from the expansion header and they struggle a bit, most likely because of the fairly long wires between the board and drivers.
Any help much appreciated,
Tom.
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The expansion header outputs are 3.3V and don't provide enough current for some types of stepper drivers. The DueX provides 5V servo outputs only.
We have a separate expansion header breakout board for connecting external stepper drivers, see https://www.duet3d.com/DuetAddons/Expansion_Breakout.
