Krzysztof Krawczyk
Lab Day 2, Experiment 2.4: Speaker
Revision 0:08b089f9884b, committed 2020-08-01
- Comitter:
- t00209054
- Date:
- Sat Aug 01 08:42:49 2020 +0000
- Commit message:
- Lab day 1
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 08b089f9884b main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sat Aug 01 08:42:49 2020 +0000
@@ -0,0 +1,20 @@
+#include "mbed.h"
+DigitalIn fire(p14);
+PwmOut spkr(p26);
+AnalogIn pot1(p19);
+float start = 2000.0, end = 10000.0, step = 100;
+
+int main()
+{
+ while (1) {
+ for (float i=start; i<end; i+=step) {
+ spkr.period(1.0/i);
+ spkr=0.5;
+ wait(0.1);
+ }
+ spkr=0.0;
+ start = 3000.0;
+ end = 5000.0;
+ while(pot1.read() < 0.5) {} // this uses the pot to control the program
+ }
+}
diff -r 000000000000 -r 08b089f9884b mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sat Aug 01 08:42:49 2020 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400 \ No newline at end of file