"Marble Run"

thingiverse

It's not a real marble run... or is it? Here is your marble... I don't want it, so take it back...No, it is your marble, here it is... This discussion continues until you switch off the unit. In the box, you can install two 28BYJ steppermotors or their slightly smaller version, the 24BYJ. The power supply requires three AA batteries. Make sure both arms are in line; otherwise, the marble does not follow the track. https://youtu.be/cme7kErpPlI This Arduino sketch makes it run: //NanoFull step mode //512 >> 360 degrees 1.4 step/degree //28BYJ Red+ Orange Yellow Pink Blue //24BYJ Red+ Black Yellow Brown Blue int M1A = 9; int M1B = 10; int M1C = 11; int M1D = 12; int M2A = 2; int M2B = 3; int M2C = 4; int M2D = 5; int t = 3; void setup() { pinMode(M1A, OUTPUT); pinMode(M1B, OUTPUT); pinMode(M1C, OUTPUT); pinMode(M1D, OUTPUT); pinMode(M2A, OUTPUT); pinMode(M2B, OUTPUT); pinMode(M2C, OUTPUT); pinMode(M2D, OUTPUT); } void loop() { for (int x = 0; x < 180; x++) { //Motor 1 CW digitalWrite(M1A, LOW); digitalWrite(M1B, LOW); digitalWrite(M1C, HIGH); digitalWrite(M1D, HIGH); delay(t); digitalWrite(M1A, LOW); digitalWrite(M1B, HIGH); digitalWrite(M1C, HIGH); digitalWrite(M1D, LOW); delay(t); digitalWrite(M1A, HIGH); digitalWrite(M1B, HIGH); digitalWrite(M1C, LOW); digitalWrite(M1D, LOW); delay(t); digitalWrite(M1A, HIGH); digitalWrite(M1B, LOW); digitalWrite(M1C, LOW); digitalWrite(M1D, HIGH); delay(t); } for (int x = 0; x < 180; x++) { //Motor 1 CCW digitalWrite(M1A, HIGH); digitalWrite(M1B, LOW); digitalWrite(M1C, LOW); digitalWrite(M1D, HIGH); delay(t); digitalWrite(M1A, HIGH); digitalWrite(M1B, HIGH); digitalWrite(M1C, LOW); digitalWrite(M1D, LOW); delay(t); digitalWrite(M1A, LOW); digitalWrite(M1B, HIGH); digitalWrite(M1C, HIGH); digitalWrite(M1D, LOW); delay(t); digitalWrite(M1A, LOW); digitalWrite(M1B, LOW); digitalWrite(M1C, HIGH); digitalWrite(M1D, HIGH); delay(t); } delay(500); for (int x = 0; x < 180; x++) { //Motor 2 CCW digitalWrite(M2A, HIGH); digitalWrite(M2B, LOW); digitalWrite(M2C, LOW); digitalWrite(M2D, HIGH); delay(t); digitalWrite(M2A, HIGH); digitalWrite(M2B, HIGH); digitalWrite(M2C, LOW); digitalWrite(M2D, LOW); delay(t); digitalWrite(M2A, LOW); digitalWrite(M2B, HIGH); digitalWrite(M2C, HIGH); digitalWrite(M2D, LOW); delay(t); digitalWrite(M2A, LOW); digitalWrite(M2B, LOW); digitalWrite(M2C, HIGH); digitalWrite(M2D, HIGH); delay(t); } for (int x = 0; x < 180; x++) { //Motor 2 CW digitalWrite(M2A, LOW); digitalWrite(M2B, LOW); digitalWrite(M2C, HIGH); digitalWrite(M2D, HIGH); delay(t); digitalWrite(M2A, LOW); digitalWrite(M2B, HIGH); digitalWrite(M2C, HIGH); digitalWrite(M2D, LOW); delay(t); digitalWrite(M2A, HIGH); digitalWrite(M2B, HIGH); digitalWrite(M2C, LOW); digitalWrite(M2D, LOW); delay(t); digitalWrite(M2A, HIGH); digitalWrite(M2B, LOW); digitalWrite(M2C, LOW); digitalWrite(M2D, HIGH); delay(t); } delay(500); }