The 3D Printed Marble Machine 3 stepper mod 28byj-48

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This is a mod for The 3D Printed Marble Machine 3 by Tulio using a 28byj-48 stepper motor instead of manual ball lifts. arduino Library: http://www.airspayce.com/mikem/arduino/AccelStepper/. arduino code: #include #define HALFSTEP 8 // Motor pin definitions #define motorPin1 3 IN1 on the ULN2003 driver 1 #define motorPin2 4 IN2 on the ULN2003 driver 1 #define motorPin3 5 IN3 on the ULN2003 driver 1 #define motorPin4 6 IN4 on the ULN2003 driver 1 // Initialize with pin sequence IN1-IN3-IN2-IN4 for using the AccelStepper with 28BYJ-48 AccelStepper stepper1(HALFSTEP, motorPin1, motorPin3, motorPin2, motorPin4); void setup() { stepper1.setMaxSpeed(2000); stepper1.setSpeed(-1100); } void loop() { stepper1.runSpeed(); }