# ch1_3.py
from tkinter import *
root = Tk()
root.configure(bg='#00ff00') # 視窗背景顏色
root.iconbitmap("mystar.ico") # 更改圖示
root.mainloop()
# ch1_4.py
from tkinter import *
root = Tk()
root.geometry("300x160+400+200") # 距離螢幕左上角(400,200)
root.mainloop()
ESP32 and Node-RED with MQTT (Publish and Subscribe) 參考來源 https://randomnerdtutorials.com/esp8266-and-node-red-with-mqtt/ mqtt_server = ...
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