Cecilia Schneider
/
schneider_hw_4
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Revision 0:efa0dd52a0d8, committed 2018-10-18
- Comitter:
- ccschneider
- Date:
- Thu Oct 18 13:52:25 2018 +0000
- Commit message:
- PWM;
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
| mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
diff -r 000000000000 -r efa0dd52a0d8 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Thu Oct 18 13:52:25 2018 +0000
@@ -0,0 +1,34 @@
+// Cecilia Schneider, OCE 360, September 9,2018
+// HW #4, PWM Output
+#include "mbed.h"
+AnalogOut Aout(p18); //oscilliscope on pin 18
+AnalogIn Ain(p20); //potentiometer on pin 20
+DigitalIn Sin(p7); //switch on pin 7
+PwmOut PWM1(p21);
+PwmOut led(LED1);
+float ADCin;
+float Switchin;
+float i;
+float j;
+
+int main() {
+ while(1) {
+ ADCin = Ain; //
+ if (Sin == 1) {
+ Switchin = 1; //when the switch is on, the amplitude will be 1
+ }
+ else if (Sin == 0) {
+ Switchin = 0.5; //when the switch is off, the amplitude will be 0.5
+ }
+ for (i=0;i<Switchin;i=i+0.001) {
+ Aout=i;
+ PWM1=i;
+ wait(0.001*ADCin); //allows user to control frequency with potentiometer
+ }
+ for (j=Switchin;j>0;j=j-0.001) {
+ Aout=j;
+ PWM1=j;
+ wait(0.001*ADCin);
+ }
+ }
+}
diff -r 000000000000 -r efa0dd52a0d8 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu Oct 18 13:52:25 2018 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/mbed_official/code/mbed/builds/e95d10626187 \ No newline at end of file
