stepper motor controller
component:
| R1, R2 ,R3, R4 | 4 | 1K 1/4W Resistor | |
| D1, D2, D3, D4 | 4 | 1N4002 Silicon Diode | |
| Q1, Q2, Q3, Q4 | 4 | TIP31 NPN Transistor (See Notes) | TIP41, 2N3055 |
| U1 | 1 | 4070 CMOS XOR Integrated Circuit | |
| U2 | 1 | 4027 CMOS Flip-Flop | |
| S1 | 1 | SPDT Switch | |
| MISC | 1 | Case, Board, Wire, Stepper Motor |
notes
- You should be able to substitute any standard (2N3055, etc.) power transistor for Q1-Q4.
- Every time the STEP line is pulsed, the motor moves one step.
- S1 changes the motors direction.
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