The esptool Method (for advanced users)
Once you have entered ROM bootloader mode, you can thenuse Espressif's esptool
program()to communicate with the chip! esptool is the 'official' programming tool
and is the most common/complete way to program an ESP chip.
Install ESPTool.py
You will need to use the command line / Terminal to install and run esptool .
You will also need to have pip and Python installed (any version!).
Install the latest version using pip (you may be able to run pip without the 3 depen
ding on your setup):
pip3 install --upgrade esptool
Then, you can run:
esptool.py
Test the Installation
Run esptool.py in a new terminal/command line and verify you get something like
the below:
If you used WebSerial ESPTool, you do not need to complete the steps in this
section!
Make sure you are running esptool v3.0 or higher, which adds ESP32-S2/S3
support.
©Adafruit Industries Page 255 of 263
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