python - 我的 Python 脚本在 RPI 启动后大约 5 分钟后退出

Question

我编写了一个小型 python 脚本，用于检查是否有东西从我的树莓派连接到特定 IP 地址，然后更改 3 个 GPIO 引脚之一的值，以打开已连接、未连接或连接错误的 LED 。该代码在 rpi 启动时运行，并在前 4.5-5 分钟内完美运行，然后就卡在代码中的任何点上。

#!/usr/bin/env python
# /etc/init.d/ping.py
### BEGIN INIT INFO
# Provides:     ping.py
# Required-Start:   $remote_fs $syslog
# Required-Stop:    $remote_fs $syslog
# Default-Start:    2 3 4 5
# Default-Stop:     0 1 6
# Short-Description:    Start daemon at boot time
# Descripton:       Enable service provided by daemon.
### END INIT INFO

import subprocess
import RPi.GPIO as GPIO

# Set up pins, address, GPIO
address = '10.101.60.131'
grn = 8
red = 10
yel = 12
GPIO.setmode(GPIO.BOARD)
GPIO.setup(grn, GPIO.OUT)
GPIO.setup(red, GPIO.OUT)
GPIO.setup(yel, GPIO.OUT)
GPIO.output(grn, GPIO.LOW)
GPIO.output(red, GPIO.LOW)
GPIO.output(yel, GPIO.LOW)

last = 5
# main loop, checks if network is there
while(1):
    ret = subprocess.call(['ping', '-c', '3', address])
    if (ret != last):
        # network responded correctly
        if ret == 0:
            print('ping to ' + address + ' OK')
            GPIO.output(grn, GPIO.HIGH)
            GPIO.output(red, GPIO.LOW)
            GPIO.output(yel, GPIO.LOW)
            last = 0
        # network was not located
        elif ret == 2:
            print('no response from ', address)
            GPIO.output(grn, GPIO.LOW)
            GPIO.output(red, GPIO.HIGH)
            GPIO.output(yel, GPIO.LOW)
            last = 2
        # other error in setup
        else:
            print('ping to ', address, ' failed')
            GPIO.output(grn, GPIO.LOW)
            GPIO.output(red, GPIO.LOW)
            GPIO.output(yel, GPIO.HIGH)
            last = 3

如果我在启动之外运行代码(在 python IDLE 中启动它)，它运行良好。如果需要更多信息，请告诉我。

Answer 1

我设法解决这个问题的方法是从 /etc/profile 运行 python 代码。在文件末尾的/etc/profile 中，我添加了 sudo python/home/pi/Desktop/filenamehere.py & ，然后保存并重新启动。