smart-home/garage/garage.py

import RPi.GPIO as GPIO
import logging
import logging.handlers as handlers
import time
from threading import Thread
import cherrypy # https://docs.cherrypy.org/en/latest/tutorials.html#tutorial-1-a-basic-web-application
import requests, json 

cherrypy.config.update({
    'server.socket_host' : '192.168.178.49',
    'server.socket_port' : 8081,
})

logger = logging.getLogger('Rotating Log')
logger.setLevel(logging.INFO)
logHandler = handlers.RotatingFileHandler('garage.log', maxBytes=1000000, backupCount=2)
logHandler.setLevel(logging.INFO)
logHandler.setFormatter(logging.Formatter('%(asctime)s %(levelname)s - %(message)s', '%Y-%m-%d %H:%M:%S'))
logger.addHandler(logHandler)


PIN_GARAGE_BUTTON = 23
PIN_GATE_BUTTON = 24
PIN_GARAGE = 21
PIN_GATE = 26
PIN_LED = 11
PIN_DOOR_OPEN = 6
PIN_DOOR_CLOSED = 13
PIN_SENSOR_GATE= 19


GPIO.setmode(GPIO.BCM)
GPIO.setup(PIN_GARAGE_BUTTON, GPIO.IN, GPIO.PUD_UP)
GPIO.setup(PIN_GATE_BUTTON, GPIO.IN, GPIO.PUD_UP)
GPIO.setup(PIN_GARAGE, GPIO.OUT)
GPIO.setup(PIN_GATE, GPIO.OUT)
GPIO.setup(PIN_LED, GPIO.OUT)
GPIO.setup(PIN_DOOR_OPEN, GPIO.IN, GPIO.PUD_UP)
GPIO.setup(PIN_DOOR_CLOSED, GPIO.IN, GPIO.PUD_UP)
GPIO.setup(PIN_SENSOR_GATE, GPIO.IN, GPIO.PUD_UP)



# move robomower into safe zone
def mower_safety():
    try:
        #response = requests.get("http://192.168.178.54/json?user=lewe&pass=nFdcX3sMD115WAap&cmd=status")
        jsonstr = '{"name": "Rasi", "id": "C7697E", "status": {"status": 17, "distance": 0, "stopped": false, "duration": 4290, "mode": 2, "battery": 100, "hours": 90}, "timer": {"status": 0}, "wlan": {"signal": -86}, "health": {"temperature": 23, "humidity": 25}, "clock": {"date": "2021-05-13", "time": "14:23:27", "unix": 1620915807}, "successful": true}'
    except requests.exceptions.RequestException as e:
        #raise SystemExit(e)
        logger.warning("couldn't reach mower")
        return None
    #status = json.loads(response.text)
    status = json.loads(jsonstr)
    logger.info(status["status"]["status"])
    if (status["status"]["status"] in [2, 3, 5]):
        logger.info("mower, run for your life")
    else:
        logger.info("lock mower in garage")

# robomower back to auto mode after gate has been closed
def mower_auto():
    logger.info("set mower back to auto mode")
    try:
        response = requests.get("http://192.168.178.54/json?cmd=mode&mode=auto&user=lewe&pass=nFdcX3sMD115WAap&cmd=status")
    except requests.exceptions.RequestException as e:
        logger.warning("couldn't reach mower")
        return None
    

def garage_button(channel):
    time.sleep(0.01) # el cheapo relay module creates lots of interference, so we check again after a waiting period (see https://electronics.stackexchange.com/a/361793/253533)
    if channel == 0 or GPIO.input(PIN_GARAGE_BUTTON) == False:
        logger.info("trigger motor")
        GPIO.output(PIN_GARAGE, GPIO.LOW)
        GPIO.output(PIN_LED, GPIO.HIGH)
        time.sleep(0.4)
        GPIO.output(PIN_GARAGE, GPIO.HIGH)
        GPIO.output(PIN_LED, GPIO.LOW)
    else:
        logger.info("flare (motor button)")

def gate_button(channel):
    time.sleep(0.01)
    if channel == 0 or GPIO.input(PIN_GATE_BUTTON) == False:
        logger.info("trigger remote")
        GPIO.output(PIN_GATE, GPIO.HIGH)
        GPIO.output(PIN_LED, GPIO.HIGH)
        time.sleep(0.4)
        GPIO.output(PIN_GATE, GPIO.LOW)
        GPIO.output(PIN_LED, GPIO.LOW)
        if GPIO.input(PIN_SENSOR_GATE) == 0:
            mower_auto()
        else:
            mower_safety()
    else:
        logger.info("flare (remote button)")

GPIO.add_event_detect(PIN_GARAGE_BUTTON, GPIO.FALLING, callback=garage_button, bouncetime=250)
GPIO.add_event_detect(PIN_GATE_BUTTON, GPIO.FALLING, callback=gate_button, bouncetime=250)

GPIO.output(PIN_GARAGE, GPIO.HIGH)
GPIO.output(PIN_GATE, GPIO.LOW)
GPIO.output(PIN_LED, GPIO.LOW)


class GarageService(object):
    @cherrypy.expose
    def index(self):
        return "Hello World!"
    
    # deprecated
    @cherrypy.expose
    def motor(self):
        Thread(target=garage_button,args=[0]).start()
        return "trigger garage door"
    
    # deprecated
    @cherrypy.expose
    def remote(self):
        Thread(target=gate_button,args=[0]).start()
        return "trigger gate"
    
    @cherrypy.expose
    def garage(self, action=None):
        if (action == "open" and GPIO.input(PIN_DOOR_CLOSED) and not GPIO.input(PIN_DOOR_OPEN)):
            Thread(target=garage_button,args=[0]).start()
            return '{ "action": "open" }'
        elif (action == "close" and GPIO.input(PIN_DOOR_OPEN) and not GPIO.input(PIN_DOOR_CLOSED)):
            Thread(target=garage_button,args=[0]).start()
            return '{ "action": "close" }'
        if (GPIO.input(PIN_DOOR_OPEN) and not GPIO.input(PIN_DOOR_CLOSED)):
            status = "true"
        else:
            status = "false"
        return '{ "status": "' + status + '" }'
    
    @cherrypy.expose
    def gate(self, action=None):
        if (action == "open" and not GPIO.input(PIN_SENSOR_GATE)):
            Thread(target=gate_button,args=[0]).start()
            return '{ "action": "open" }'
        elif (action == "close" and GPIO.input(PIN_SENSOR_GATE)):
            Thread(target=gate_button,args=[0]).start()
            return '{ "action": "close" }'
        if GPIO.input(PIN_SENSOR_GATE) == 0:
            status = "false"
        else:
            status = "true"
        return '{ "status": "' + status + '" }'
    
    @cherrypy.expose
    def all(self):
        Thread(target=garage_button,args=[0]).start()
        Thread(target=gate_button,args=[0]).start()
        return "trigger all"
    
    @cherrypy.expose
    def status(self):
        return '{ "open": ' + str(GPIO.input(PIN_DOOR_OPEN)) + ', "closed": ' + str(GPIO.input(PIN_DOOR_CLOSED)) + ', "gate": ' + str(GPIO.input(PIN_SENSOR_GATE)) + ' }'




cherrypy.quickstart(GarageService())
logger.info('Shutdown')
logger.info('Reset GPIO configuration and close')
GPIO.cleanup()