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AMPdeck said:parts list:
555 (create astable freq.)
74194 - for shift right shift left
7476 - FF. q and not q connected to s1,s0 of 194
unl2003 - stepper motor driver
zener diode 12v
2pcs 74193 (make a binary of 100dec then nand to cp of FF....
stepper motor which has 1.8deg per step.....
falleafd said:Well, I don't know what you intend to do, but why do you need 555 and shift registers? ULN2003 is enough. What will your control signal come from? PC or MC? or you use 555 to get a fixed velocity?