This is a 10Pin project, using USBasp hardware connected it to a inexpensive 28BYJ-48 Stepper and ULN2003 driver from eBay, and an Arduino sketch to control the stepper.
28BYJ-48 Stepper & UNL2003 Driver
Connections
| ICSP Pin | Arduino Pin | Driver Board |
| MISO | D12 | IN 1 |
| SCK | D13 | IN 4 |
| RST | D10 | IN 2 |
| MOSI | D11 | IN 3 |
| VCC | N/A | + |
| GND | N/A | – |
Arduino Code
#include <Stepper.h>
const int stepsPerRevolution = 2048;
Stepper myStepper(stepsPerRevolution,12,10,11,13);
void setup() {
pinMode(12, OUTPUT);
pinMode(13, OUTPUT);
pinMode(10, OUTPUT);
pinMode(11, OUTPUT);
myStepper.setSpeed(6);
}
void loop() {
myStepper.step(stepsPerRevolution);
delay(500);
myStepper.step(-stepsPerRevolution);
delay(500);
}
Notes
The 28BYJ-48 Stepper has 2048 steps per revolution. With the example code above the stepper cannot do more than about 14 RPM. With the above code, the stepper will rotate 360 degrees in one direction pause for 1/2 second and then rotate 360 degrees in the opposite direction.
More Info
See the Project Ten Pin for more information.
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