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[英]Why doesn’t input.send_keys() work in my Selenium WebDriver Python script when run as www-data?
[英]My python script doesn't work completely to send emails when a button is pressed
你好,下午好。 我在编程方面几乎是NOOB。 我有一个朋友帮我编写了python脚本,当按下按钮时,它将打开LED并发送电子邮件。 按住该按钮2秒钟以上并松开时,应该将其转到原来的位置并发送单独的电子邮件。 即使按下并按住按钮,第一个“正常”电子邮件也会每次发送,但“重要”电子邮件不会发送,但是led会关闭。 我在Raspberry PI 3上运行Ubuntu Mate。这是脚本的一部分。
import RPi.GPIO as GPIO
import time
import smtplib
from email.MIMEMultipart import MIMEMultipart
from email.MIMEText import MIMEText
import datetime
body = "Email message"
sender = "Room 202 Help"
subject = "Room 202 Help Button"
to = ""
stmpAddress = "smtp.gmail.com"
username = ""
password = ""
normalBody = "Help needed in room 202"
importantBody = "Request Canceled Room 202"
ledPin = 23
buttonPin = 18
importantPress = 2 #seconds
GPIO.setmode(GPIO.BCM)
GPIO.setup(buttonPin, GPIO.IN, pull_up_down=GPIO.PUD_UP) #makes the pin stay high another words it is set to about 3 volts
GPIO.setup(ledPin, GPIO.OUT) #makes the pin be an output
msg = MIMEMultipart()
msg['From'] = sender
msg['To'] = to
msg['Subject'] = subject
GPIO.output(ledPin,GPIO.LOW)
while True:
buttonPress = GPIO.input(buttonPin)
if buttonPress == False: #is the pin low?
GPIO.output(ledPin,GPIO.HIGH)#turn on the led
print('Button Pressed')#Yes it is low meaning it was shorted to ground
buttonPressStart = datetime.datetime.now() #Time the button got pressed
while GPIO.input(buttonPin) == False: # while it is still low
time.sleep(0.1)#stay here till they let go of the button
buttonPressEnd = datetime.datetime.now() # time the button was let go
diff = buttonPressEnd - buttonPressStart#the differnce of when the button got pressed and let go, duration on button press
if diff > datetime.timedelta(seconds = importantPress):
msg.attach(MIMEText(importantBody, 'plain'))
GPIO.output(ledPin,GPIO.LOW)#turn off the led if it's on
print("Canceling")
else:
msg.attach(MIMEText(normalBody, 'plain'))
server = smtplib.SMTP(stmpAddress, 587)
server.starttls()
server.login(username, password)
server.sendmail(username, to, msg.as_string())
server.quit()#email sent
time.sleep(0.01)#sleep a short time so to not eat all resources
通过在Raspberry Pi论坛上发布的答案,您可以看到按下按钮的时间如下:
while True:
GPIO.wait_for_edge(PIN, GPIO.FALLING)
print "Pressed"
start = time.time()
time.sleep(0.2)
while GPIO.input(PIN) == GPIO.LOW:
time.sleep(0.01)
length = time.time() - start
print length
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