Stepper Motor Controller



Total Qty.


R1, R2 ,R3, R441K 1/4W Resistor
D1, D2, D3, D441N4002 Silicon Diode
Q1, Q2, Q3, Q44TIP31 NPN Transistor (See Notes)TIP41, 2N3055
U114070 CMOS XOR Integrated Circuit
U214027 CMOS Flip-Flop
S11SPDT Switch
MISC1Case, Board, Wire, Stepper Motor
  1. You should be able to substitute any standard (2N3055, etc.) power transistor for Q1-Q4.
  2. Every time the STEP line is pulsed, the motor moves one step.
  3. S1 changes the motors direction.

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