MengLi Shih
/
quiz1_1
quiz1_1
main.cpp
- Committer:
- shih775007
- Date:
- 2017-03-01
- Revision:
- 0:ef4ce59f2913
File content as of revision 0:ef4ce59f2913:
#include "mbed.h" #define BREATHE_PERIOD 4500 // ms #define INHALE_PERIOD (BREATHE_PERIOD / 4) #define EXHALE_PERIOD (BREATHE_PERIOD / 2) #define HOLD_PERIOD (BREATHE_PERIOD / 8) //BusOut leds(LED1, LED2, LED3, LED4); PwmOut led(D6); int main() { float brightness; while(1) { for (int i = 0; i <= 32; i++) { brightness = i * i / (float)(32 * 32); led = brightness; wait_ms(INHALE_PERIOD / 32); } wait_ms(HOLD_PERIOD); for (int i = 0; i <= 32; i++) { brightness = 1- (i * i / (float)(32 * 32)); led = brightness; wait_ms(EXHALE_PERIOD / 32); } wait_ms(HOLD_PERIOD); } }