Displaying Temperature from DHT11 in GUI - Automatic Refresh?

Question

Newbie to Python, started off messing with a DHT11 Temp/Humidity Sensor, a Raspberry Pi 3, and Python 3.

I am using the standard Adafruit DHT11 Library for Python.

Answer 1

Create the Label once at the start of the program, and save a reference:

the_label = Label (win, text="", fg="black", bg="white", font="36")
the_label.grid(row=0, column=0)

Next, create a function that gets the value and updates the label:

def READ():
    global temp
    humidity, temperature = Adafruit_DHT.read_retry(11, 27)
    temp = temperature * 9/5.0 + 32
    the_label.configure(text=str(temp))

Next, create a new function that calls this function, and then schedules itself t be called again after a delay:

def read_every_second():
    READ()
    root.after(1000, read_every_second)

Finally, call read_every_second once at the start of your program. It will then run until your program exits.