Adafruit AirLift Shield ESP32 - External AirLift Breakout

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The lights should flash again, BOOT will disappear. Your board should re-enumerate USB and appear as a

COM or Serial port on your computer. Make a note of the serial port by checking the Device Manager

(Windows) or typing ls /dev/cu* or /dev/tty* (Mac or Linux) in a terminal.

If your board is listed in the terminal, proceed to the Uploading nina-fw with esptool section of this guide.

External AirLift Breakout

You'll be turning your Arduino board into a USB to Serial converter. To do this, you'll need a special

Arduino sketch named SerialESPPassthrough.ino and an Arduino-compatible board with Native USB

support such as the Adafruit Metro M4.

You will also need to make the following connections between the board and the AirLift Breakout:

Board Pin 12 to ESP32_ResetN

Board Pin 10 to ESP32 GPIO0

Board TX to RXI

Board RX to TX0

Click

Download: Project ZIP

to download the code below.

SerialNINAPassthrough - Use esptool to flash the ESP32 module

For use with PyPortal, Metro M4 WiFi...

This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Lesser General Public

License as published by the Free Software Foundation; either

version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public

License along with this library; if not, write to the Free Software

Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

#include <Adafruit_NeoPixel.h>

unsigned long baud = 115200;