Quote Originally Posted by bruce_miranda View Post
OK going to try and get my hand on a 'full' PC and see how things go.

Does anyone know of a supplier for a buffered Breakout Board similar to the ones CNC4PC do but in the UK? Hopefully that will give me a full 5V signal and I can use my laptops again.
Bruce - how are your drivers wired to the PC? The MDS series are opto-isolated. Unless there is some strange wiring issue a higher output voltage wont make any difference as they are active low drive.