import tkinter
import tkinter.font as font
import RPi.GPIO as GPIO
import dht11
import time
import datetime

root = tkinter.Tk()
root.title("温度／湿度")
root.geometry("240x120+10+50")
labelFont = font.Font(size=30, weight="bold")
var1 = tkinter.StringVar(root)
var2 = tkinter.StringVar(root)
t0 = ""
h0 = ""

# initialize GPIO
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM)

# read data using pin 14
instance = dht11.DHT11(pin=14)

# get sensor data
def mainOpe():
        count = 0
        while True:
                global t0
                global h0
                result = instance.read()
                if result.is_valid():
                        data1 = "%-3.1f 度" % result.temperature
                        if data1 != t0:
                                var1.set(data1)
                                label1 = tkinter.Label(root, textvariable=var1, font=labelFont, foreground="#000000")
                                if result.temperature >= 30.0:
                                        label1 = tkinter.Label(root, textvariable=var1, font=labelFont, foreground="#ff0000")
                                if result.temperature < 10.0:
                                        label1 = tkinter.Label(root, textvariable=var1, font=labelFont, foreground="#0000ff")
                                label1.place(x=50, y=10)
                        data2 = "%-3.1f ％" % result.humidity
                        if data2 != h0:
                                var2.set(data2)
                                label2 = tkinter.Label(root, textvariable=var2, font=labelFont, foreground="#000000")
                                if result.humidity >= 60.0:
                                        label2 = tkinter.Label(root, textvariable=var2, font=labelFont, foreground="#3399ff")
                                if result.humidity < 30.0:
                                        label2 = tkinter.Label(root, textvariable=var2, font=labelFont, foreground="#cc9900")
                                label2.place(x=50, y=60)
                        t0 = data1
                        h0 = data2
#                        print("Temperature: %-3.1f C" % result.temperature)
#                        print("Humidity: %-3.1f %%" % result.humidity)
                        break
                else:
                       count += 1
                       if count > 100:
                                print("error")
                                break
        return

# timer event
def timer():
        x = mainOpe()
        root.after(5000, timer)

try:
        root.after(1000, timer)
        root.mainloop()

except KeyboardInterrupt:
        print("Cleanup")
        GPIO.cleanup()