新组装的开发板在烧录好固件后，就要测试引脚是否正常，以下是测试代码：

for i in range(0,26,1):
    Pin(i, Pin.OUT).off()
    time.sleep(0.1)

for i in range(0,26,1):
    if(i<1):
        print(str(i)+" ON")
        Pin(i).on()
        time.sleep(5)
    else:
        print(str(i)+" ON")
        Pin(i).on()
        time.sleep(0.1)
        num = i-1
        Pin(num).off()
        time.sleep(6)



adc0 = ADC(0)
adc1 = ADC(1)
adc2 = ADC(2)
adc3 = ADC(3)

for i in range(0,20,1):
    print("ADC0"+str(adc0.read_u16()))
    time.sleep(1)
for i in range(0,20,1):
    print("ADC1"+str(adc1.read_u16()))
    time.sleep(1)
for i in range(0,20,1):
    print("ADC2"+str(adc2.read_u16()))
    time.sleep(1)
for i in range(0,20,1):
    print("ADC3"+str(adc3.read_u16()))
    time.sleep(1)