/diy/ - Do It Yourself

>>844944
>Isn't there something you're supposed to do with the ground traces in audio circuits?
i am not an expert but,,,, the only thing I've ever heard about audio circuits that was special was that the speaker [+] and [-] connections are "normally" always floating... specifically-----the [-] speaker connection(s) is never connected to the actual electrical ground unless the instructions for your circuit tell you to do that.

I has a question about stepper motors and drives, specifically the step modes (pic related),,, the step modes in green I understand, because they are in multiples of 200/400. what are the modes in red for?
note that:
1. the device only has two bipolar output connections,,, and-
2. a normal stepper motor has 50 poles, and 2 windings that can connect both ways (50 x 2 windings x 2 directions for each winding = 200 steps/revolution). Or,
3. some stepper motors have 100 poles on the rotor and then two windings, so they are 400 steps/revolution....
4. what motors would be able to have 1000 steps per revolution? I don't get it

id ask the vendor on ebay (Longs) but their instructions are pretty bad chinglish. The drivers do work, but the hookup instructions on the website don't even work.