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- Rotates only by fixed amounts, and controlled by a sequence of digital outputs
- Stepper motors typically (for bipolar steppers) have 4 wires, two each for adjacent coils
- Other, more complicated drive patterns such as full-step drive (two phases on), half-stepping etc. possible
- Step angles of 1.8o8o, 3.6o6o, 7.2o 2o etc. are typical
Courtesy : https://howtomechatronics.com/how-it-works/electrical-engineering/stepper-motor/
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