EasyDriver V4.4, connecting STEP and DIR

Thread Starter

GrahamRounce

Joined May 6, 2009
9
Hi - Sorry this was posted in the wrong forum earlier.

I can't find a definitive answer to this online. Perhaps it's too obvious..!

For an experimenting board, I want to drive STEP and DIR from push microswitches (hoping there's debounce?).

I'm used to tying inputs high with 10K's and taking them to ground as needed, but the schematics online show a variety of methods, some with resistors going both up and down! Some say that on later versions there are 20K pullups on those inputs. Does that mean I can just switch them to ground?

I want to get it right, as I've also read that incorrectly driving DIR can cause overheating.

What method should I use?
Thank-you,
 
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