Martin Heine
Simple Stepper Motor 4-Phase 5-Wire with ULN2003 Driver
Revision 0:481ac50cc86b, committed 2014-04-02
- Comitter:
- lasmahei
- Date:
- Wed Apr 02 10:09:19 2014 +0000
- Commit message:
- Added Brief Description
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
| mbed.lib | Show annotated file Show diff for this revision Revisions of this file |
diff -r 000000000000 -r 481ac50cc86b main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Apr 02 10:09:19 2014 +0000
@@ -0,0 +1,38 @@
+// 28BYJ-48 stepper motor example
+// showing how to control a unipolar stepper motor by mbed digital output ports.
+// Tested on the Nucleo F103RB Board
+// Based on http://www.geeetech.com/wiki/index.php/Stepper_Motor_5V_4-Phase_5-Wire_%26_ULN2003_Driver_Board_for_Arduino
+// Using the ULN2003A Driver.
+
+#include "mbed.h"
+
+BusOut motor_out(PC_0, PC_1, PC_2, PC_3); // blue - pink - yellow - orange
+
+int step = 0;
+int dir = 1; // direction
+
+int main()
+{
+ while(1)
+ {
+ switch(step)
+ {
+ case 0: motor_out = 0x1; break; // 0001
+ case 1: motor_out = 0x3; break; // 0011
+ case 2: motor_out = 0x2; break; // 0010
+ case 3: motor_out = 0x6; break; // 0110
+ case 4: motor_out = 0x4; break; // 0100
+ case 5: motor_out = 0xC; break; // 1100
+ case 6: motor_out = 0x8; break; // 1000
+ case 7: motor_out = 0x9; break; // 1001
+
+ default: motor_out = 0x0; break; // 0000
+ }
+
+ if(dir) step++; else step--;
+ if(step>7)step=0;
+ if(step<0)step=7;
+ wait(0.015); // speed
+ }
+}
+
diff -r 000000000000 -r 481ac50cc86b mbed.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.lib Wed Apr 02 10:09:19 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/#8e73be2a2ac1