TVZ Mechatronics Team
A simple sinewave generator with adjustable amplitude and frequency over potentiometers.
Dependencies: mbed
Revision 0:ea6a4849f64a, committed 2014-12-18
- Comitter:
- tbjazic
- Date:
- Thu Dec 18 08:39:42 2014 +0000
- Commit message:
- Initial commit.
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 ea6a4849f64a main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Thu Dec 18 08:39:42 2014 +0000
@@ -0,0 +1,22 @@
+#include "mbed.h"
+
+AnalogOut out(p18);
+AnalogIn pot1(p19);
+AnalogIn pot2(p20);
+
+int main() {
+ float A, f, T; // sine peak-to-peak amplitude, frequency and period
+ float Ts; // sampling time
+ const float PI = 3.14159265;
+ int numberOfPoints = 100;
+ while(1) {
+ A = pot1; // amplitude in range 0 to 3.3 V
+ f = 10 + 10 * pot2; // frequency in range 10 to 20 Hz
+ T = 1/f;
+ Ts = T / numberOfPoints;
+ for (int i = 0; i < numberOfPoints; i++) {
+ out = 0.5 + A/2 * sin(2 * PI * f * i * Ts);
+ wait(Ts);
+ }
+ }
+}
\ No newline at end of file
diff -r 000000000000 -r ea6a4849f64a mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu Dec 18 08:39:42 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/4fc01daae5a5 \ No newline at end of file