PythonPiZero/room_conditions.py at master · slw546/PythonPiZero · GitHub

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import os
import time
from screen import Screen

class RoomConditions(Screen):
    red = [100,0,0]
    def __init__(self, hat):
        self.hat = hat
        self.temp_history = [self.hat.get_temperature()]*8
        self.humidity_history = [self.hat.get_humidity()]*8
        self.pressure_history = [self.hat.get_pressure()]*8
        self.index = 0
        self.graph = False

    def up(self):
        return "BinaryClock"

    def press(self):
        self.graph = not self.graph

    def getTemp(self):
        temp = self.hat.get_temperature()
        cpu_temp = os.popen('/opt/vc/bin/vcgencmd measure_temp').read()
        cpu_temp = cpu_temp.replace("temp=","")
        cpu_temp = cpu_temp.replace("\'C\n","")
        calc_temp = temp - (float(cpu_temp)-temp)/1.5
        self.temp_history[self.index]=calc_temp
        return "Room Temp: " + "{0:.1f}".format(calc_temp) + "\'C"

    def getHumidity(self):
        humidity = self.hat.get_humidity()
        self.humidity_history[self.index]=humidity
        return "Humidity: " + "{0:.1f}".format(humidity)+"%rH"

    def getPressure(self):
        pressure = self.hat.get_pressure()
        self.pressure_history[self.index]=pressure
        return "Pressure: " + "{0:.1f}".format(pressure)+" Millibars"

    def incIndex(self):
        self.index = (self.index +1) % 8

    def printTemp(self):
        self.hat.show_message(self.getTemp(), scroll_speed=0.1, text_colour=self.red)
    def printHumidity(self):
        self.hat.show_message(self.getHumidity(), scroll_speed=0.1, text_colour=self.red)
    def printPressure(self):
        self.hat.show_message(self.getPressure(), scroll_speed=0.1, text_colour=self.red)

    def printAll(self, going):
        if going.isSet():
            self.printTemp()
            self.delay(2, going)
        if going.isSet():
            self.printHumidity()
            self.delay(2, going)
        if going.isSet():
            self.printPressure()
            self.delay(2, going)
        self.incIndex()

    def printTempGraph(self):
        #range 19-26
        self.hat.clear()
        x = 0
        for temp in self.temp_history:
            if temp < 19:
                temp = 19
            elif temp > 26:
                temp = 26
            y = abs(temp-19-7)
            self.hat.set_pixel(x,y,[100,0,0])
            x+=1

    def run(self, going):
        while going.isSet():
            if self.graph:
                self.printTempGraph()
                self.delay(10, going)
            else:
                self.printAll(going)