Aerodyne
Debounce and latch a button input
Dependencies: mbed
Revision 0:59aa41d04f51, committed 2014-06-02
- Comitter:
- ethanharstad
- Date:
- Mon Jun 02 06:47:09 2014 +0000
- Commit message:
- Initial commit
Changed in this revision
| Debounce.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 59aa41d04f51 Debounce.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Debounce.cpp Mon Jun 02 06:47:09 2014 +0000
@@ -0,0 +1,38 @@
+#include "mbed.h"
+
+Serial pc(USBTX, USBRX);
+DigitalIn btn(USER_BUTTON);
+DigitalOut led(LED1);
+Timer timer;
+Timer debounce;
+
+bool state = false;
+bool prevState = false;
+bool counting = false;
+
+int main() {
+ while(true) {
+ state = btn;
+ if(state != prevState) {
+ debounce.start();
+ }
+ if(debounce.read_ms() > 20) {
+ debounce.stop();
+ debounce.reset();
+ if(!state) {
+ if(!counting) {
+ counting = true;
+ led = true;
+ timer.start();
+ } else {
+ counting = false;
+ led = false;
+ timer.stop();
+ pc.printf("%i ms\n", timer.read_ms());
+ timer.reset();
+ }
+ }
+ }
+ prevState = state;
+ }
+}
\ No newline at end of file
diff -r 000000000000 -r 59aa41d04f51 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Jun 02 06:47:09 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/0b3ab51c8877 \ No newline at end of file