ST / Mbed 2 deprecated DISCO-L072CZ-LRWAN1_blink_leds

LEDs/Button example.

Dependencies:   mbed

main.cpp@3:50a3fc3bce95, 2017-05-29 (annotated)

Committer:
bcostm
Date:
Mon May 29 13:14:37 2017 +0000
Revision:
3:50a3fc3bce95
Parent:
2:603a8ac68090 
Correction in main.cpp

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bcostm 0:2bd4c0051d9a 1 #include "mbed.h"
bcostm 0:2bd4c0051d9a 2
arostm 1:d343cf676574 3 DigitalOut myled1(LED1);
arostm 1:d343cf676574 4 DigitalOut myled2(LED2);
arostm 1:d343cf676574 5 DigitalOut myled3(LED3);
arostm 1:d343cf676574 6 DigitalOut myled4(LED4);
arostm 1:d343cf676574 7
arostm 1:d343cf676574 8 InterruptIn mybutton(USER_BUTTON);
arostm 1:d343cf676574 9
bcostm 3:50a3fc3bce95 10 double tempo = 0.3; // LED blinking delay
arostm 1:d343cf676574 11
bcostm 2:603a8ac68090 12 // Change LEDs blinking frequency
bcostm 2:603a8ac68090 13 void change_blinking_frequency() {
bcostm 2:603a8ac68090 14 if (tempo == 0.3) // If leds have low frequency
bcostm 2:603a8ac68090 15 tempo = 0.1; // Set the fast frequency
bcostm 2:603a8ac68090 16 else // If leds have fast frequency
bcostm 2:603a8ac68090 17 tempo = 0.3; // Set the low frequency
bcostm 0:2bd4c0051d9a 18 }
arostm 1:d343cf676574 19
arostm 1:d343cf676574 20 int main() {
bcostm 2:603a8ac68090 21 // All LEDs are OFF
bcostm 2:603a8ac68090 22 myled1 = 0;
bcostm 2:603a8ac68090 23 myled2 = 0;
bcostm 2:603a8ac68090 24 myled3 = 0;
bcostm 2:603a8ac68090 25 myled4 = 0;
arostm 1:d343cf676574 26
bcostm 2:603a8ac68090 27 // Change LEDs blinking frequency when button is pressed
bcostm 2:603a8ac68090 28 mybutton.fall(&change_blinking_frequency);
arostm 1:d343cf676574 29
arostm 1:d343cf676574 30 while(1) {
arostm 1:d343cf676574 31 myled2 = 1; // LED2 is ON
arostm 1:d343cf676574 32 wait(tempo); // wait tempo
arostm 1:d343cf676574 33 myled2 = 0; // LED2 is OFF
arostm 1:d343cf676574 34 myled1 = 1; // LED1 is ON
arostm 1:d343cf676574 35 wait(tempo); // wait tempo
arostm 1:d343cf676574 36 myled1 = 0; // LED1 is OFF
arostm 1:d343cf676574 37 myled3 = 1; // LED3 is ON
arostm 1:d343cf676574 38 wait(tempo); // wait tempo
arostm 1:d343cf676574 39 myled3 = 0; // LED3 is OFF
arostm 1:d343cf676574 40 myled4 = 1; // LED4 is ON
arostm 1:d343cf676574 41 wait(tempo); // wait tempo
arostm 1:d343cf676574 42 myled4 = 0; // LED4 is OFF
arostm 1:d343cf676574 43 }
arostm 1:d343cf676574 44 }