David Siorpaes
/
ServoMotorDemo
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Dependencies: X_NUCLEO_IKS01A1 mbed
Revision 0:7766b7bed319, committed 2016-03-16
- Comitter:
- daz
- Date:
- Wed Mar 16 16:41:53 2016 +0000
- Commit message:
- Servo motor demo. Uses X-NUCLEO-IKS01A1 Expansion Board to drive a Servo Motor with speed control
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/X_NUCLEO_IKS01A1.lib Wed Mar 16 16:41:53 2016 +0000 @@ -0,0 +1,1 @@ +https://developer.mbed.org/teams/ST/code/X_NUCLEO_IKS01A1/#a91987e8cf51
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Mar 16 16:41:53 2016 +0000
@@ -0,0 +1,33 @@
+#include "mbed.h"
+#include "x_nucleo_iks01a1.h"
+
+#define SERVO_IDLE (0.00153)
+
+static X_NUCLEO_IKS01A1 *mems_expansion_board = X_NUCLEO_IKS01A1::Instance(D14, D15);
+static MotionSensor *accelerometer = mems_expansion_board->GetAccelerometer();
+PwmOut servo(D3);
+
+int main(int argc, char** argv)
+{
+ int32_t axes[3];
+ float pwmWidth;
+
+ /* Initialize PWM to 50Hz*/
+ servo.period(0.020);
+ servo.pulsewidth(SERVO_IDLE);
+
+ while(1){
+ /* SENSE accelerometer X axis */
+ accelerometer->Get_X_Axes(axes);
+
+ /* COMPUTE PWM width */
+ pwmWidth = SERVO_IDLE + axes[0] * 1e-7;
+
+ /* ACTUATE Servo Motor according to accelerometer value */
+ servo.pulsewidth(pwmWidth);
+
+ /* Wait 50ms */
+ wait(0.05);
+ }
+}
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Wed Mar 16 16:41:53 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/4f6c30876dfa \ No newline at end of file