Question

我正在使用树莓派构建自动浇水系统，遇到了一些问题，当我在IDE中运行代码无限次运行时，我想在一段时间后停止运行，如果您可以建议我如何我可以使用Web服务器自动运行它。这是我的剧本。

import RPi.GPIO as GPIO
import time
timeout = time.time() + 60*1

water_pump = 20
moisture_sensor = 21

GPIO.setmode(GPIO.BCM)

GPIO.setup(moisture_sensor, GPIO.IN)

GPIO.setup(water_pump,GPIO.OUT)
def callback(moisture_sensor):
 if GPIO.input(moisture_sensor):
    GPIO.output(water_pump, GPIO.LOW)
 else:
    GPIO.output(water_pump, GPIO.HIGH)

GPIO.add_event_detect(moisture_sensor, GPIO.BOTH, bouncetime=300)
GPIO.add_event_callback(moisture_sensor, callback)

Answer 1

我正在使用Flask框架通过WEB控制GPIO。这是个小例子：

import RPi.GPIO as GPIO
import time
from flask import Flask
timeout = time.time() + 60*1

app = Flask(__name__)

water_pump = 20
moisture_sensor = 21

GPIO.setmode(GPIO.BCM)

GPIO.setup(moisture_sensor, GPIO.IN)

GPIO.setup(water_pump,GPIO.OUT)
def callback(moisture_sensor):
 if GPIO.input(moisture_sensor):
    GPIO.output(water_pump, GPIO.LOW)
 else:
    GPIO.output(water_pump, GPIO.HIGH)

@app.route('/start')
def start():
    GPIO.output(water_pump, GPIO.HIGH)

@app.route('/stop')
def stop():
    GPIO.output(water_pump, GPIO.LOW)

GPIO.add_event_detect(moisture_sensor, GPIO.BOTH, bouncetime=300)
GPIO.add_event_callback(moisture_sensor, callback)
app.run()

想要在特定时间内停止python中的脚本

1 个答案: