000 - ESP32 MicroPython: How to Get Started with MicroPython

Introduction

In this article you will learn how to get started with MicroPython explorations. We will begin to learn to install first a Thonny Python IDE for developing MicroPython codes for development board of your choice. I will be using an ESP32 development board.

Instruction

1. Download the Thonny Python IDE at:
   Download Thonny Python
   This is one of the best, beautiful, and beginner-friendly IDE available. We will also use Thonny Python to erase and flash new firmware to ESP32 with the help of esptool pluggins.

2. Download the MicroPython firmware from:
   Download Firmware at MicroPython.org
   Go to download section and look for your development board. Choose the stable bin file for your board.

3. Download the ESP32 USB driver at:
   Download ESP32 USB driver

4. Download some references files for your development board like pinouts and schematic diagram.

5. Install Thonny Python

6. Install the ESP32 USB driver

7. Flash a new firmware to ESP32 using the Thonny Python.

Video Demonstration

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Source Code

Example 1, Turn ON or turn OFF the onboard LED

 1
 2# Load the 'machine' module to access the hardware
 3import machine
 4
 5# Create an 'led' object in pin 2
 6# and set the pin direction to output
 7led = machine.Pin(2, machine.Pin.OUT)
 8
 9# This turns on or turns off the 'led'
10led.on()
11led.off()
12
13# This is the same as the above code
14# but now we are passing a value
15led.value(1)
16led.value(0)
17
18# This is the same as the above code
19# as you already know
20#	1 = True
21#	0 = False
22led.value(True)
23led.value(False)

Example 2, Blink the onboard LED

 1
 2# Load the 'machine' module to access the hardware
 3import machine
 4
 5# Load the 'time' module which includes the 'sleep' class
 6import time
 7
 8# Create an 'led' object in pin 2
 9# and set the pin direction to output
10led = machine.Pin(2, machine.Pin.OUT)
11
12# Create an eternal loop that blinks the LED
13# time.sleep(0.5) creates a 0.5 second delay
14# or 500 milli seconds
15while True:
16    led.on()
17    time.sleep(0.5)
18    led.off()
19    time.sleep(0.5)