Welcome to the Tkinter tutorial with ESP32

Tkinter is a popular GUI toolkit for Python. It allows you to create simple and interactive graphical user interfaces. In this tutorial, we will show you how to use Tkinter with the ESP32 microcontroller.

Setting up your ESP32 with Tkinter

To get started, you will need to have the following:

• ESP32 microcontroller
• Python installed on your computer
• Tkinter library installed (usually comes with Python)
• ESP32 micropython firmware flashed onto your ESP32

Creating a simple Tkinter interface

First, let’s create a simple Tkinter interface that will allow us to control the ESP32. Here is an example code snippet:

import tkinter as tk

# Create a Tkinter window
window = tk.Tk()
window.title("ESP32 Control Panel")
window.geometry("400x300")

# Add buttons to control the ESP32
button1 = tk.Button(window, text="Turn on LED")
button1.pack()

button2 = tk.Button(window, text="Turn off LED")
button2.pack()

# Add a text box to display messages
text_box = tk.Text(window)
text_box.pack()

# Function to turn on LED
def turn_on_led():
    # Code to send command to ESP32 to turn on LED
    text_box.insert(tk.END, "LED turned onn")

# Function to turn off LED
def turn_off_led():
    # Code to send command to ESP32 to turn off LED
    text_box.insert(tk.END, "LED turned offn")

button1.config(command=turn_on_led)
button2.config(command=turn_off_led)

# Run the Tkinter main loop
window.mainloop()

This code creates a simple window with two buttons to turn on and off an LED connected to the ESP32. It also includes a text box to display messages.

Connecting Tkinter with the ESP32

Now that you have a basic Tkinter interface, you can use the pyserial library to communicate with the ESP32 over a serial connection. Here is an example code snippet:

import serial

# Connect to the ESP32 over serial
ser = serial.Serial('COM3', 115200)

# Function to send command to ESP32
def send_command(command):
    ser.write(command.encode())

# Include this function in the turn_on_led and turn_off_led functions to send commands to the ESP32

# Close the serial connection when the program ends
atexit.register(lambda: ser.close())

With this code, you can now send commands to the ESP32 from your Tkinter interface. You can customize the commands and functions to control other functionalities of the ESP32 as well.

That’s it! You now have a basic understanding of how to create a Tkinter interface to control an ESP32 microcontroller. Have fun experimenting and creating your own projects!