Stepper driver

209

02:31:17

I build this with my "science fair 200", combined with a stepper I retrieved from a scanner. The simulation doesn't work (even with the coils detached), it ends with a 'no solution' error, so I guess my circuit isn't completely sound, but the real circuit works. I can control the speed of the stepper with the pot. Seeing the simulation of what happens, I suppose I should not tie the stepper directly to the same wires as the led without some protection in between ? 

published 8 years ago

selman

8 years ago

How large was the stepper motor, must be small considering you're driving it directly from the logic gates.

oneindelijk

8 years ago

Yes, it is a small stepper with very little torque. I once tried to look it up, but couldn't find the exact model...

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