运动传感器代码在 class 中使用并从主 class 调用

Question

这是我的运动传感器代码

from gpiozero import MotionSensor
import RPi.GPIO as GPIO
import time

GPIO.setmode(GPIO.BCM)
GPIO.setwarnings(False)
GPIO.setup(3,GPIO.OUT)

pir = MotionSensor(4)

while True:
    if pir.motion_detected:
        GPIO.output(3,GPIO.HIGH)
        print("Motion detected!")
    
    else:
        GPIO.output(3,GPIO.LOW)

这是输出

Motion detected!
Motion detected!
Motion detected!

帮助我想在 python class 中使用上面的代码并从主 python class.How 访问它来完成它？谢谢！

我试过了

MainClass.py

import CalculateTime
import PeopleDetector
         
class Application:
      
           PeopleDetector.PIRDetection()

PeopleDetector.py

from gpiozero import MotionSensor
import RPi.GPIO as GPIO
import time

    GPIO.setmode(GPIO.BCM)
    GPIO.setwarnings(False)
    GPIO.setup(3,GPIO.OUT)
    pir = MotionSensor(4)

    def PIRDetection():
        if pir.motion_detected:
        GPIO.output(3,GPIO.HIGH)
        print("Motion detected!")
        return 1;
    
        else:
        GPIO.output(3,GPIO.LOW)
        return 0;

错误

Traceback (most recent call last): File "/home/pi/App/Python2/Main.py", line 2, in import PeopleDetector File "/home/pi/App/Python2/PeopleDetector.py", line 5 GPIO.setmode(GPIO.BCM) ^ IndentationError: unexpected indent

Answer 1

Python 是一种 space 敏感语言。您需要使用正确的缩进（tabs / 4-spaces 始终如一）。 if 和 else 声明要求您缩进它们下面的代码。您拥有的更新代码不包含必要的选项卡。试试这个。

PeopleDetector.py

from gpiozero import MotionSensor
import RPi.GPIO as GPIO
import time

GPIO.setmode(GPIO.BCM)
GPIO.setwarnings(False)
GPIO.setup(3,GPIO.OUT)
pir = MotionSensor(4)

def PIRDetection():
    if pir.motion_detected:
        GPIO.output(3,GPIO.HIGH)
        print("Motion detected!")
        return 1
    else:
        GPIO.output(3,GPIO.LOW)
        return 0

MainClass.py

import CalculateTime
import PeopleDetector

class Application:
    PeopleDetector.PIRDetection()

运动传感器代码在 class 中使用并从主 class 调用

Motion Sensor code use in class and call from main class

python

python-2.7

raspberry-pi3

sensors