Michael Mc Namara
/
mbed_speaker
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Diff: main.cpp
- Revision:
- 0:f9e72987fb27
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue Dec 21 10:06:10 2021 +0000
@@ -0,0 +1,17 @@
+#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;
+ while(pot1.read() < 0.5) {} // this uses the pot to control the program
+ start=10000.0, end=15000.0, step=100;
+ }
+}