Stepper motor (bipolar) (DRV8833)
NEMA 17 bipolar stepper · 12 V, 0.4 A per coil (30 Ω) · two coils, A and B, 200 full steps per turn (1.8°) · reverse the current in each coil in turn: an H-bridge per coil (L298N, DRV8833)
Try it on the benchThe lab drops it on an empty bench and opens its datasheet card.
Typical part: NEMA 17 bipolar stepper (42BYGH 12 V)
Pins
- A+
- A−
- B+
- B−
Ratings and limits
| Coil | 30 Ω, 0.4 A at 12 V |
|---|---|
| Step | 1.8° (200 per turn) |
| Inductance | ≈ 20 mH |
How to use it
Each coil needs its current reversed, so it takes two H-bridges (an L298N or DRV8833) or a step/dir driver. Find the coil pairs with a meter: about 30 Ω between the two wires of one coil.