describes the installation procedure for MicroPython development under Windows 10

Micropython Pre-flight (Windows 10)

by Casey Anderson

Go to the downloads section of the Anaconda website here
(On the same page) Scroll down until you see three buttons, one for each operating system supported by Anaconda. Click on Windows
(On the same page) Find the header reading Python 3.7 version and click the Download button just below it
Install Anaconda
Click on the Start menu, you should be able to find an application called Anaconda Powershell Prompt. Launch that application
Run the following in the Anaconda Powershell Prompt: conda info

In the Anaconda Powershell Prompt:

Go to the Downloads section of the micropython site here and scroll down until you see a header reading Firmware for ESP32 boards
Download the latest Standard Firmware (esp32-20190529-v1.11.bin as of this writing)
(In the Anaconda Powershell Prompt): conda activate micropython
Move the .bin file you just downloaded to the micropython folder. For example, if you downloaded the file to Downloads, navigate to that folder in Anaconda Powershell Prompt and run the following: mv esp32-20190529-v1.11.bin ..\Documents\micropython

This driver enables communication between a PC and the ESP32 via USB

Go here and find the header reading Download for Windows 10 Universal (v10.1.7 as of this writing)
Click on the link reading Download VCP for Windows 10 Universal to intiate the download
Install the driver

Connect your ESP32 to your PC
Open Device Manager
Scroll to Ports and click to expand
Find the line reading Silicon Labs CP210x USB to UART Bridge. At the end of that line you should see COM followed by a number (example: COM3). This identifies where your ESP32 is on your PC so write it down somewhere for use later.

(In Anaconda Powershell Prompt) cd Documents (or wherever you put your micropython folder)
cd micropython
pwd to confirm you are in the right folder
ls to confirm that the .bin file is the micropython folder
Erase the software that is already on the ESP32: esptool --port COM3 erase_flash
Drivers in windows are a little wonky (sorry), so one of the following steps should write the .bin file to the ESP32. Start with the first one and, if you get errors, try the second one:

v1: esptool --port COM3 --baud 460800 write_flash --flash_size=detect 0 esp8266-20171101-v1.9.3.bin
v2: esptool --port COM3 write_flash 0x1000 esp8266-20171101-v1.9.3.bin

When esptool is done activate the default conda environment to shut it down: conda activate
Quit the Anaconda Powershell Prompt

Putty is an ssh and serial connection client for Windows. We will use it to access the Micropython REPL

Go to the Putty download site here
Find the header MSI (‘Windows Installer’), underneath it you should see a link to download putty 64-bit (putty-64bit-0.71-installer.msi as of this writing).
Install Putty
Go to the Start menu, locate and launch Putty
Set Putty to a serial connection and then enter the following information:

Serial Port: COM3 (note: see Device Manager to confirm the port number for your ESP32)
Baud Rate: 115200

Click Open. You will probably see a bunch of startup text and then the micropython command prompt: >>>
Print "hello world!" with the micropython REPL: print("hello world!")
Close Putty to shut down the connection

Save this Python file to your Documents/micropython folder
(In Anaconda Powershell Prompt) conda activate micropython
cd Documents/micropython
Run blink.py on the ESP32: ampy --port COM3 run blink.py. Stop running the script by typing Ctl-C and then power cycle the ESP32
To store the file on the ESP32: ampy --port COM3 put blink.py
To see a file stored on the ESP32: ampy --port COM3 get blink.py
To remove a file from the ESP32: ampy --port COM3 rm blink.py
Or to see all of the files currently on the ESP32: ampy --port COM3 ls
To shutdown: first activate the default conda environment: conda activate, close the Anaconda Powershell Prompt