LEDs and user button example.
Dependencies: mbed
main.cpp@1:8932d9db4aaf, 2017-09-26 (annotated)
- Committer:
- bcostm
- Date:
- Tue Sep 26 12:55:12 2017 +0000
- Revision:
- 1:8932d9db4aaf
- Parent:
- 0:b385f231a65a
Add mbed library v151
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
arostm | 0:b385f231a65a | 1 | #include "mbed.h" |
bcostm | 1:8932d9db4aaf | 2 | |
arostm | 0:b385f231a65a | 3 | DigitalOut myled1(LED1); |
arostm | 0:b385f231a65a | 4 | DigitalOut myled2(LED2); |
arostm | 0:b385f231a65a | 5 | DigitalOut myled3(LED3); |
bcostm | 1:8932d9db4aaf | 6 | |
arostm | 0:b385f231a65a | 7 | InterruptIn mybutton(USER_BUTTON); |
bcostm | 1:8932d9db4aaf | 8 | |
arostm | 0:b385f231a65a | 9 | double tempo = 0.2; //time to wait |
bcostm | 1:8932d9db4aaf | 10 | |
bcostm | 1:8932d9db4aaf | 11 | void changetempo() |
bcostm | 1:8932d9db4aaf | 12 | { |
arostm | 0:b385f231a65a | 13 | if(tempo == 0.2) // If leds have low frequency |
arostm | 0:b385f231a65a | 14 | tempo = 0.1; // Set the fast frequency |
arostm | 0:b385f231a65a | 15 | else // If les have fast frequency |
arostm | 0:b385f231a65a | 16 | tempo = 0.2; // Set the low frequency |
arostm | 0:b385f231a65a | 17 | } |
bcostm | 1:8932d9db4aaf | 18 | |
bcostm | 1:8932d9db4aaf | 19 | int main() |
bcostm | 1:8932d9db4aaf | 20 | { |
arostm | 0:b385f231a65a | 21 | myled1 = 0; //LED1 is OFF |
arostm | 0:b385f231a65a | 22 | myled2 = 0; //LED2 is OFF |
arostm | 0:b385f231a65a | 23 | myled3 = 0; //LED3 is OFF |
bcostm | 1:8932d9db4aaf | 24 | |
arostm | 0:b385f231a65a | 25 | mybutton.fall(&changetempo); //Interrupt to change tempo |
bcostm | 1:8932d9db4aaf | 26 | |
arostm | 0:b385f231a65a | 27 | while(1) { |
arostm | 0:b385f231a65a | 28 | myled1 = 1; // LED2 is ON |
arostm | 0:b385f231a65a | 29 | wait(tempo); // wait tempo |
arostm | 0:b385f231a65a | 30 | myled1 = 0; // LED2 is OFF |
arostm | 0:b385f231a65a | 31 | myled2 = 1; // LED1 is ON |
arostm | 0:b385f231a65a | 32 | wait(tempo); // wait tempo |
arostm | 0:b385f231a65a | 33 | myled2 = 0; // LED1 is OFF |
arostm | 0:b385f231a65a | 34 | myled3 = 1; // LED3 is ON |
arostm | 0:b385f231a65a | 35 | wait(tempo); // wait tempo |
arostm | 0:b385f231a65a | 36 | myled3 = 0; // LED3 is OFF |
arostm | 0:b385f231a65a | 37 | } |
arostm | 0:b385f231a65a | 38 | } |