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Increase or decrease LED brightness with keyboard via serial port.
Revision 0:f83df7d9548d, committed 2015-03-10
- Comitter:
- mbedaddict
- Date:
- Tue Mar 10 08:59:45 2015 +0000
- Commit message:
- Pwm in order to increase or decrease brightness with keyboard keys.
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 f83df7d9548d main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue Mar 10 08:59:45 2015 +0000
@@ -0,0 +1,24 @@
+#include "mbed.h"
+
+Serial pc(USBTX, USBRX); // tx, rx
+PwmOut led(LED1);
+
+float brightness = 0.0;
+
+int main()
+{
+ pc.printf("Press 'u' to turn LED1 brightness up, 'd' to turn it down\n");
+
+ while(1) {
+ char c = pc.getc();
+ if((c == 'u') && (brightness < 0.5)) {
+ brightness += 0.01;
+ led = brightness;
+ }
+ if((c == 'd') && (brightness > 0.0)) {
+ brightness -= 0.01;
+ led = brightness;
+ }
+
+ }
+}
\ No newline at end of file
diff -r 000000000000 -r f83df7d9548d mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Tue Mar 10 08:59:45 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/7e07b6fb45cf \ No newline at end of file