1# coding=utf-8 2# This is a sample Python script. 3import utime 4from driver import GPIO 5 6print("start led test") 7gpio = GPIO() 8leds=("led1", "led2", "led3") 9for i in range(3): 10 for led in leds: 11 gpio.open(led) 12 gpio.write(1) 13 utime.sleep_ms(200) 14 value = gpio.read() 15 print(value) 16 gpio.write(0) 17 utime.sleep_ms(200) 18 value = gpio.read() 19 print(value) 20 gpio.write(1) 21 utime.sleep_ms(200) 22 value = gpio.read() 23 print(value) 24 gpio.close() 25 26print("end led test") 27