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Stepper Motor 28BYJ 48 and ULN2003 Stepper Motor Driver MAX30100 Pulse Oximeter Heart Rate Sensor Module (Pack of 25) 20mm X 33mm Heat Resistant 20mm X 33mm Heat Resistant Polyimide High Temperature Adhesive Insulation Tape thanks to the onboard CR2032 coin cell Bulk Discounts Special pricing for orders of 10+ units The 28BYJ 48 uses unipolar stepping technology with 4 coils
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