This guide assumes you have Python3 installed. If you have not installed it, navigate to the Python
downloads page (https://www.python.org/downloads) and install the latest release.
Install esptool.py
Esptool is an application which can communicate with the ROM bootloader (https://adafru.it/LKe) in
Espressif chips.
To install esptool, run the following in your terminal :
pip3 install esptool
Burning nina-fw with esptool
Click the link below to download the latest nina-fw .bin file. Unzip it and save the .bin file to your desktop .
https://adafru.it/G3D
If you're using macOS or Linux - run the following command, replacing /dev/ttyACM0 with the serial port of
your board and NINA_W102-1.6.0 with the binary file you're flashing to the ESP32.
esptool.py --port /dev/ttyACM0 --before no_reset --baud 115200 write_flash 0 NINA_W102-1.6.0.bin
If you're using Windows - run the following command, replacing COM7 with the serial port of your board
and NINA_W102-1.6.0 with the binary file you're flashing to the ESP32
esptool.py --port COM7 --before no_reset --baud 115200 write_flash 0 NINA_W102-1.6.0.bin
The command should detect the ESP32 and will take a minute or two to upload the firmware.
If ESPTool doesn't detect the ESP32
, make sure you've uploaded the correct .UF2 file to the bootloader
and are using the correct serial port.
https://adafru.it/G3D
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