Python程序（Raspberry Pi）控制推拉门的打开/关闭-解网

问：

3 个输出：CW、CCW 和 SPEED 5 个输入：手动打开（ENT），然后 4 个簧片开关确定位置，打开和关闭时行程结束。

我可以看到 OUTPUT/hardware 和 GPIO.setup 通过 WEBIOPi 正常工作。手动一切正常。

目前，我一直在尝试使用 ENT 输入来触发一个带有 sleep（）延迟的序列，以至少实现一些自动化，然后稍后整理行程开关，但仍然不行。代码更糟，在此之前，这不是等待 ENT/Open 开关，而是运行一些序列。

通过键盘控制输出没有问题，当时看起来很容易，但输入呢？对此有什么想法吗？

#!/usr/bin/python
#DOOR Controller 


from __future__ import print_function
import RPi.GPIO as GPIO
from time import sleep
import subprocess
import os
import sys
import datetime
import pdb; #pdb.set_trace()

GPIO.setwarnings(False)


# Relay channel definitions via GPIO numbers
CCW = 2
CW = 3
SPEED = 24
S1_TR = 22
S2_BR = 18
S3_TL = 25
S4_BL = 17
ENT = 23


# Initialise GPIO
GPIO.setmode(GPIO.BCM)
GPIO.setup(CW,GPIO.OUT)
GPIO.setup(CCW,GPIO.OUT)
GPIO.setup(SPEED,GPIO.OUT)
GPIO.setup(S1_TR,GPIO.IN)
GPIO.setup(S2_BR,GPIO.IN)
GPIO.setup(S3_TL,GPIO.IN)
GPIO.setup(S4_BL,GPIO.IN)
GPIO.setup(ENT, GPIO.IN, pull_up_down=GPIO.PUD_UP)

# Relays are active-low
GPIO.output(CCW,True)
GPIO.output(CW,True)
GPIO.output(SPEED,False)

#def signal_handler(sig, frame):
#   GPIO.cleanup()
#   sys.exit(0)

def ENT_CB(ENT):
    if GPIO.input(ENT):
        GPIO.output(CCW, False)
        sleep(2)
        GPIO.output(SPEED, True) #fast
        sleep(5)
        GPIO.output(SPEED, False) #slow
        sleep(2)
        GPIO.output(CCW, True)
        sleep(1)
        GPIO.output(CW, False)
        sleep(2)
        GPIO.output(SPEED, True)
        sleep(5)
        GPIO.output(SPEED, False)
        sleep(2)
        GPIO.output(CW, True)

#pdb.set_trace()
if __name__ == '__main__':

    GPIO.add_event_detect(ENT, GPIO.FALLING,
        callback=ENT_CB, bouncetime=50)
    GPIO.add_event_detect(S1_TR, GPIO.RISING)
    GPIO.add_event_detect(S3_TL, GPIO.RISING)
    GPIO.add_event_detect(S4_BL, GPIO.RISING)
    GPIO.add_event_detect(S2_BR, GPIO.RISING)

    #signal.signal(signal.SIGINT, signal_handler)
    #signal.pause()
#def loop():
#while True:
#   if GPIO.event_detected(ENT):
#       GPIO.output(CCW, False)
#   sleep(2)
#   #elif GPIO.event_detected(S3_TL):
#   GPIO.output(SPEED, True)
#   sleep(5)
#   GPIO.output(SPEED, False)
#   sleep(2)
#   GPIO.output(CCW, True)
#   sleep(1)
#   GPIO.output(CW, False)
#   sleep(2)
#   GPIO.output(SPEED, True)
#   sleep(5)
#   GPIO.output(SPEED, False)
#   sleep(2)
#   GPIO.output(CW, True)
#
#   elif GPIO.event_detected(S4_BL):
#       GPIO.output(SPEED, False)
#   elif GPIO.event_detected(S2_BR):
#       GPIO.output(CCW, True)
#   sleep(5)
#   GPIO.output(CW, True)
#   if GPIO.event_detected(S4_BL):
#       GPIO.output(SPEED, True)
#   elif GPIO.event_detected(S3_TL):
#       GPIO.output(SPEED, False)
#   elif GPIO.event_detected(S1_TR):
#       GPIO.output(CW, False)


#   else:
#       print("stop")

#   if __name__ == '__main__':
#       setup()

#   try:
#       loop()

#   except KeyboardInterrupt:
#       cprint("Stopped")

python 循环事件输入 gpio

答：

0赞 Rocket Rod 4/19/2023 #1

进一步的“谷歌学校”，我找到了以下解决方案，它有效。对于一些聪明人来说会很好，但磁簧开关似乎不可靠，好吧，也许测试磁铁不正确。:)

#!/usr/bin/python
#DOOR Controller 


from __future__ import print_function
import RPi.GPIO as GPIO
from time import sleep
import subprocess
import os
import sys
import datetime
import pdb; #pdb.set_trace()

GPIO.setwarnings(False)


# Relay channel definitions via GPIO numbers
CCW = 2
CW = 3
SPEED = 24
S1_TR = 22
S2_BR = 18
S3_TL = 25
S4_BL = 17
ENT = 23


# Initialise GPIO
GPIO.setmode(GPIO.BCM)
GPIO.setup(CW,GPIO.OUT)
GPIO.setup(CCW,GPIO.OUT)
GPIO.setup(SPEED,GPIO.OUT)
GPIO.setup(S1_TR,GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
GPIO.setup(S2_BR,GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
GPIO.setup(S3_TL,GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
GPIO.setup(S4_BL,GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
GPIO.setup(ENT, GPIO.IN, pull_up_down=GPIO.PUD_UP)

# Relays are active-low
GPIO.output(CCW,True)
GPIO.output(CW,True)
GPIO.output(SPEED,False)

def callback_func(ENT):
    while not GPIO.input(ENT):
        GPIO.output(CW, GPIO.LOW)
            sleep(2)
        GPIO.output(SPEED, GPIO.HIGH)
        sleep(3)
        GPIO.output (SPEED, GPIO.LOW)
        sleep(2)
        GPIO.output (CW, GPIO.HIGH)
        sleep(1)
        GPIO.output (CCW, GPIO.LOW)
        sleep(2)
        GPIO.output(SPEED, GPIO.HIGH)
        sleep(3)
        GPIO.output (SPEED, GPIO.LOW)
        sleep(2)
        GPIO.output (CCW, GPIO.HIGH)

GPIO.add_event_detect(ENT, GPIO.FALLING, callback=callback_func, bouncetime=10)


#def callback_func(S4_BL):
#   while not GPIO.input(S4_BL):
#       GPIO.output(CW, GPIO.LOW)
#       sleep(2)
#       GPIO.output (CW, GPIO.HIGH)

#GPIO.add_event_detect(S4_BL, GPIO.FALLING, callback=callback_func, bouncetime=50)


def main():
    while True:
        #print ("DOOR waiting to OPEN/CLOSE")
            sleep(5)

if __name__ == "__main__":
    main()

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