erco
Senior Member
A quickie testbed to demonstrate these $2.50 stepper motors and ULN2003 driver boards from Ebay China: http://www.ebay.com/itm/271025356632
They are slow and have some backlash, but they get the job done and are good for experimenting. Currently driven by a simple BS1, which is slower and fewer (8) I/Os than my favorite PICAXE 20M2. That upgrade is coming!
square: http://www.youtube.com/watch?v=TLdkKKMfUP0
figure 8:
They are slow and have some backlash, but they get the job done and are good for experimenting. Currently driven by a simple BS1, which is slower and fewer (8) I/Os than my favorite PICAXE 20M2. That upgrade is coming!
square: http://www.youtube.com/watch?v=TLdkKKMfUP0
figure 8: