- '''
- STM32F4DISC开发板引脚映射关系
- 1=red(PD14), 2=green(PD12), 3=yellow(PD13), 4=blue(PD15)
- LED_GREEN PD12
- LED_ORANGE PD13
- LED_RED PD14
- LED_BLUE PD15
- # LEDs 3 and 4 support PWM intensity (0-255)
- '''
- from pyb import LED
- import time # 调用sleep sleep_ms sleep_us延时函数
- led3_pwm = LED(3) # PD13
- led4_pwm = LED(4) # PD15
- print('Hello World')
- if __name__ == '__main__':
- while True:
-
- for i in range(0,255,5): # 0 - 254 步长5
- led3_pwm.intensity(i)
- led4_pwm.intensity(255-i)
- time.sleep_ms(50)
- # print('value1=%d' % led3_pwm.intensity())
- # print('value2=%d' % led4_pwm.intensity())
- print('i= {0} ,led3_value={1},led4_value={2}' .format(i,led3_pwm.intensity(),led4_pwm.intensity()))
- else:
-
- print("Finally finished!")
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