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authorDavid A. Mellis <d.mellis@arduino.cc>2009-06-01 08:32:11 +0000
committerDavid A. Mellis <d.mellis@arduino.cc>2009-06-01 08:32:11 +0000
commitdb605dd18b11ecfb5cd9f92c721c52cb70543384 (patch)
tree8a9029ffc560970ce1204ba86785ad44ef044906 /libraries/Stepper/examples/MotorKnob
First integration of the Arduino code in Processing 5503: PreProcessor and Compiler have been integrated with changes to the Sketch.
Compilation still has problems (Thread error on success, and can't handle non-pde files in a sketch). Modified the Mac OS X make.sh to copy the hardware, avr tools, and example over. Removing some of the antlr stuff. Disabling the Commander (command-line execution) for now. Added Library, LibraryManager, and Target. Added support for prefixed preferences (e.g. for boards and programmers).
Diffstat (limited to 'libraries/Stepper/examples/MotorKnob')
-rw-r--r--libraries/Stepper/examples/MotorKnob/MotorKnob.pde40
1 files changed, 40 insertions, 0 deletions
diff --git a/libraries/Stepper/examples/MotorKnob/MotorKnob.pde b/libraries/Stepper/examples/MotorKnob/MotorKnob.pde
new file mode 100644
index 0000000..062cac9
--- /dev/null
+++ b/libraries/Stepper/examples/MotorKnob/MotorKnob.pde
@@ -0,0 +1,40 @@
+/*
+ * MotorKnob
+ *
+ * A stepper motor follows the turns of a potentiometer
+ * (or other sensor) on analog input 0.
+ *
+ * http://www.arduino.cc/en/Reference/Stepper
+ */
+
+#include <Stepper.h>
+
+// change this to the number of steps on your motor
+#define STEPS 100
+
+// create an instance of the stepper class, specifying
+// the number of steps of the motor and the pins it's
+// attached to
+Stepper stepper(STEPS, 8, 9, 10, 11);
+
+// the previous reading from the analog input
+int previous = 0;
+
+void setup()
+{
+ // set the speed of the motor to 30 RPMs
+ stepper.setSpeed(30);
+}
+
+void loop()
+{
+ // get the sensor value
+ int val = analogRead(0);
+
+ // move a number of steps equal to the change in the
+ // sensor reading
+ stepper.step(val - previous);
+
+ // remember the previous value of the sensor
+ previous = val;
+} \ No newline at end of file