Doorlockd prototype

doord.py

#!/bin/env python3

import socket
import RPi.GPIO as gpio
import time

GPIO = 7
LISTEN_ADDRESS = '127.0.0.1'
LISTEN_PORT = 3214
OPEN_TIME = 5

gpio.setmode(gpio.BOARD)
gpio.setup(GPIO, gpio.OUT)

sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.bind((LISTEN_ADDRESS, LISTEN_PORT))

while True:
	data, addr = sock.recvfrom(1024)
	print(data)
	if data == b"open":
		gpio.output(GPIO, gpio.HIGH)
		time.sleep(OPEN_TIME)
		gpio.output(GPIO, gpio.LOW)

doord.service

[Unit]
Description=Doord

[Service]
ExecStart=/usr/local/sbin/doord.py

[Install]
WantedBy=multi-user.target

open.py

#!/bin/env python3

import socket

SERVER_ADDRESS = '127.0.0.1'
SERVER_PORT = 3214

sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.sendto(b'open', (SERVER_ADDRESS, SERVER_PORT))

passwd

.
.
.
.
door:x:1002:1003::/home/door:/usr/local/bin/open

shells

#
# /etc/shells
#

/bin/sh
/bin/bash
/usr/local/bin/open

# End of file