Blog - Home Automation Raspberry Pi Python Code

#!usr/bin/python

import paho.mqtt.publish as publish #implementation

from flask import (
    Flask,
    render_template,
    request,
)

app = Flask(__name__)

OFFICE_LIGHTS = 2 #Implementation
OFFICE_RELAY = 3 #Implementation

rgbOfficeLastSet = (255 * .75, 255 * .75, 255 * .75)
rgbOfficeLightsOff = (0,0,0)
deskCurentStatus = False

officeBenchRelay1LastSet = False

TOPIC = "/house" #implementation

##############################################################################

#http://XXX.XXX.XXX.XXX:YYYY/house/office/on
@app.route('/house/office/on', methods=['GET', 'POST'])
def houseOfficeOn():
    officeLightsToState(True)
    setOfficeRelay(True)
    return "Office On"

#http://XXX.XXX.XXX.XXX:YYYY/house/office/off
@app.route('/house/office/off', methods=['GET', 'POST'])
def houseOfficeOff():
    officeLightsToState(False)
    setOfficeRelay(False)
    return "Office Off"

##############################################################################


#http://XXX.XXX.XXX.XXX:YYYY/house/office/desk/lights/on
@app.route('/house/office/desk/lights/on', methods=['GET', 'POST'])
def houseOfficeDeskLightsOn():
    officeLightsToState(True)
    return "Desk On"

#http://XXX.XXX.XXX.XXX:YYYY/house/office/desk/lights/off
@app.route('/house/office/desk/lights/off', methods=['GET', 'POST'])
def houseOfficeDeskLightsOff():
    officeLightsToState(False)
    return "Desk Off"

#http://XXX.XXX.XXX.XXX:YYYY/house/office/desk/lights/toggle
@app.route('/house/office/desk/lights/toggle', methods=['GET', 'POST'])
def houseOfficeDeskLightsToggle():
    global deskCurentStatus
    deskCurentStatus = not deskCurentStatus
    officeLightsToState(deskCurentStatus)
    if(deskCurentStatus):
        return "Desk On"
    else:
        return "Desk Off"


#http://XXX.XXX.XXX.XXX:YYYY/house/office/desk/lights/levelcolor?level= {{NumberField}}&color= {{TextField}}
@app.route('/house/office/desk/lights/levelcolor', methods=['GET', 'POST'])
def houseOfficeDeskLightsLevelColor():
    global rgbOfficeLastSet
    color = request.values['color']
    #Scales and limits request (0-100% to 0-255)
    level = clamp(int(int(request.values['level']) * 2.55), 0, 255)

    rgbOfficeLastSet = calcRGBColorLevels(color, level)
    officeLightsToState(level > 0)

    return "Kitchen Lights set to %s and %s" % (level, color)


def setHouseOfficeDeskLights(levels):
    r, g, b = levels
    publish.single(TOPIC, chr(int(r)) + chr(int(g)) + chr(int(b)) + chr(OFFICE_LIGHTS)) #implementation


###################################################################################

#http://XXX.XXX.XXX.XXX:YYYY/house/office/bench/relay1/toggle
@app.route('/house/office/bench/relay1/toggle', methods=['GET', 'POST'])
def houseOfficeBenchRelay1Toggle():
    global officeBenchRelay1LastSet

    officeBenchRelay1LastSet =  not officeBenchRelay1LastSet
    setOfficeRelay(officeBenchRelay1LastSet)

    if (officeBenchRelay1LastSet):
        return "Office Relay On"
    else:
        return "Office Relay Off"


def setHouseOfficeBenchRelay1(value):
    publish.single(TOPIC, chr(int(value)) + chr(0) + chr(0) + chr(OFFICE_RELAY)) #implementation


###################################################################################


def officeLightsToState(state):
    global rgbOfficeLastSet
    global rgbOfficeLightsOff
    global deskCurentStatus

    if(state):
        #Set Office Lights to last used setting and indicate they are currently on
        setHouseOfficeDeskLights(rgbOfficeLastSet)
        deskCurentStatus = True
    else:
        #Turn lights off and set current status variable
        setHouseOfficeDeskLights(rgbOfficeLightsOff)
        deskCurentStatus = False

def setOfficeRelay(state):
    global officeBenchRelay1LastSet
    #turn relay on and set current status variable
    officeBenchRelay1LastSet = state
    setHouseOfficeBenchRelay1(officeBenchRelay1LastSet)


def calcRGBColorLevels(color, level):
    levels = (level, level, level)

    if ("red" in color.lower()):
        levels = (level, 0, 0)
    elif ("orange" in color.lower()):
        levels = (level, level * .75,0)
    elif ("yellow" in color.lower()):
        levels = (level * .75,level,0)
    elif ("green" in color.lower()):
        levels = (0, level, 0)
    elif ("aqua" in color.lower()):
        levels = (0, level, level * .75)
    elif ("cyan" in color.lower()):
        levels = (0, level * .75, level)
    elif ("blue" in color.lower()):
        levels = (0, 0, level)
    elif ("purple" in color.lower()):
        levels = (level * .75, 0, level)
    elif ("pink" in color.lower()):
        levels = (level, 0, level * .75)
    return levels

def clamp(n, minimum, maximum):
    return max(min(maximum, n), minimum)

if __name__ == "__main__":
    app.run('0.0.0.0', 5300)