12_rotaryEncoder.py 文件源码

def setup():
    global counter
    global Last_RoB_Status, Current_RoB_Status
    GPIO.setmode(GPIO.BCM)
    GPIO.setup(RoAPin, GPIO.IN)
    GPIO.setup(RoBPin, GPIO.IN)
    GPIO.setup(RoSPin,GPIO.IN, pull_up_down=GPIO.PUD_UP)
    # Set up a falling edge detect to callback clear
    GPIO.add_event_detect(RoSPin, GPIO.FALLING, callback=clear)

    # Set up a counter as a global variable
    counter = 0
    Last_RoB_Status = 0
    Current_RoB_Status = 0

# Define a function to deal with rotary encoder