Raspberry pi Sensehat auto update

[BashBedlam]

I don't have a sense hat to work with but I can tell you that after () does not work like you think it would. The first time that you call canvas.after (500) it will wait half a second but the next time you call it, it will not seem to work at all because it only waited the same half a second, not a whole second. To work with this you have to add time each time you call it.

My code below simply increments the values in orientationData instead of getting it from the sense hat but the concept is the same. I hope this helps.

from tkinter import *
 
# Create a container for everything
canvas = Tk()
 
def UpdateOrientationDate():

    #Reaquire the orientation data
    for key, value in orientationData.items () :
        orientationData [key] = value + 1 

    #Update the labels with orientation data from the trycorder
    pitchLabel.config(text=str(round(orientationData["pitch"], 0)))
    rollLabel.config(text=str(round(orientationData["roll"], 0)))
    yowLabel.config(text=str(round(orientationData["yaw"], 0)))
 
#Get intital orientation orientation data from the trycorder
orientationData = {"pitch": 7, "roll": 8, "yaw": 9}

# Pre-populate the Labels with data for orientation from the trycorder
pitchLabel = Label(canvas, width = 9, text="0")
rollLabel = Label(canvas, text="0")
yowLabel = Label(canvas, text="0")

#Place the labels on the grid
pitchLabel.grid(row=0, column=0)
rollLabel.grid(row=1, column=0)
yowLabel.grid(row=2, column=0)

wait_time = 0
for count in range (13) :
    wait_time += 500
    canvas.after (wait_time, UpdateOrientationDate)

canvas.mainloop()