演示源代码
本演示中的资源代码仅作为参考。
led.py:
''' Please make sure the LED is connected to the correct pins. The following table describes how to connect the LED to the 40-pin header. ----------------------------------------- _______LED_________Pin Number_____Pin Name Positive 22 GPIO50 Negative 6 GND ----------------------------------------- ''' import VisionFive.gpio as GPIO import time led_pin = 22 #Configure the direction of led_pin as output. GPIO.setup(led_pin, GPIO.OUT) def light(delay): #Configure the voltage level of led_pin as high. GPIO.output(led_pin, GPIO.HIGH) time.sleep(delay) #Configure the voltage level of led_pin as low. GPIO.output(led_pin, GPIO.LOW) time.sleep(delay) if __name__ == '__main__': try: delay_s = input("Enter delay(seconds): ") delay = float(delay_s) while True: light(delay) finally: GPIO.cleanup()