Tedd OKANO / Mbed 2 deprecated unipolar_stepper_motor_operation_sample

Very simple operation samples of unipolar stepper motor. This code has been made to help beginners to learn the stepper motor. The history of the code shows the how to generate pulses from very basic level.

Dependencies:   mbed

Diff: main.cpp

Revision:
7:032ae28fae2e
Parent:
6:11b35048d384
Child:
8:6f3f8e5da87b
diff -r 11b35048d384 -r 032ae28fae2e main.cpp
--- a/main.cpp	Sat Jan 11 01:58:21 2014 +0000
+++ b/main.cpp	Sat Jan 11 02:05:17 2014 +0000
@@ -1,7 +1,7 @@
 //  stepper motor operation sample (learn it step by step).
 //  showing how to control a unipolar stepper motor by mbed digital output ports.
 //
-//  version 3 : Operation by BusOut
+//  version 4 : Output pulse pattern in array
 
 #include "mbed.h"
 
@@ -9,6 +9,8 @@
 
 #define     INTERVAL    0.01
 
+char        pattern[]   = { 1, 2, 4, 8 };
+
 int main()
 {
     while(1) {
@@ -16,32 +18,32 @@
         //  pulse orser : "p26 -> p25 -> p24 -> p23" for 4*90(=360) steps
 
         for ( int i = 0; i < 90; i++ ) {
-            motor_out   = 1;
+            motor_out   = pattern[ 0 ];
             wait( INTERVAL );
 
-            motor_out   = 2;
+            motor_out   = pattern[ 1 ];
             wait( INTERVAL );
 
-            motor_out   = 4;
+            motor_out   = pattern[ 2 ];
             wait( INTERVAL );
 
-            motor_out   = 8;
+            motor_out   = pattern[ 3 ];
             wait( INTERVAL );
         }
 
         //  pulse orser : "p23 -> p24 -> p25 -> p26" for 4*90(=360) steps
 
         for ( int i = 0; i < 90; i++ ) {
-            motor_out   = 8;
+            motor_out   = pattern[ 3 ];
             wait( INTERVAL );
 
-            motor_out   = 4;
+            motor_out   = pattern[ 2 ];
             wait( INTERVAL );
 
-            motor_out   = 2;
+            motor_out   = pattern[ 1 ];
             wait( INTERVAL );
 
-            motor_out   = 1;
+            motor_out   = pattern[ 0 ];
             wait( INTERVAL );
         }
     }