Two LEDs blink at different frequencies controlled by two timers. Two additional LEDs connected to PWM change brightness gradually also at different rates.
main.cpp@1:75e11b7fe6d7, 2018-03-30 (annotated)
- Committer:
- titanium
- Date:
- Fri Mar 30 13:43:01 2018 +0000
- Revision:
- 1:75e11b7fe6d7
- Parent:
- 0:3eb6cb11b409
extra lines are deleted.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
titanium | 0:3eb6cb11b409 | 1 | #include "mbed.h" |
titanium | 0:3eb6cb11b409 | 2 | |
titanium | 0:3eb6cb11b409 | 3 | Ticker timer1, timer2, timer3, timer4; |
titanium | 0:3eb6cb11b409 | 4 | DigitalOut digled1(LED1), digled2(LED2); |
titanium | 0:3eb6cb11b409 | 5 | PwmOut pwmled3(LED3), pwmled4(LED4); |
titanium | 0:3eb6cb11b409 | 6 | DigitalOut digout7(p7); |
titanium | 0:3eb6cb11b409 | 7 | |
titanium | 0:3eb6cb11b409 | 8 | void flipled1() { digled1 = !digled1;} |
titanium | 0:3eb6cb11b409 | 9 | void flipled2 () { digled2 = !digled2; } |
titanium | 0:3eb6cb11b409 | 10 | void changeled3() |
titanium | 0:3eb6cb11b409 | 11 | { static float pwmval=0.0; |
titanium | 0:3eb6cb11b409 | 12 | static int seq=0; |
titanium | 0:3eb6cb11b409 | 13 | seq=(seq+1) % 100; // 1-100 |
titanium | 0:3eb6cb11b409 | 14 | pwmval= float(seq*seq) / 10000.0; |
titanium | 0:3eb6cb11b409 | 15 | pwmled3.write(pwmval); } |
titanium | 0:3eb6cb11b409 | 16 | void changeled4() |
titanium | 0:3eb6cb11b409 | 17 | { static float pwmval=0.0; |
titanium | 0:3eb6cb11b409 | 18 | static int seq=0; |
titanium | 0:3eb6cb11b409 | 19 | seq=(seq+1) % 100; // 1-100 |
titanium | 0:3eb6cb11b409 | 20 | pwmval= float(seq*seq) / 10000.0; |
titanium | 0:3eb6cb11b409 | 21 | pwmled4.write(pwmval); } |
titanium | 0:3eb6cb11b409 | 22 | |
titanium | 0:3eb6cb11b409 | 23 | int main() { |
titanium | 0:3eb6cb11b409 | 24 | timer1.attach(&flipled1, 0.8); |
titanium | 0:3eb6cb11b409 | 25 | timer2.attach(&flipled2, 0.35); |
titanium | 0:3eb6cb11b409 | 26 | timer3.attach(&changeled3, 0.005); |
titanium | 0:3eb6cb11b409 | 27 | timer4.attach(&changeled4, 0.003); |
titanium | 0:3eb6cb11b409 | 28 | while(1) { digout7= ! digout7; } } |
titanium | 0:3eb6cb11b409 | 29 |