Adafruit AirLift Shield ESP32 User Manual

Wanna stack? This tutorial shows how to use the plain header
to connect to an Arduino. If you want to use stacking
headers (https://adafru.it/dsu), don't follow these steps!
Start by sliding the 10 pin, 2 x 8 pin and 6-pin stacking
headers into the outer rows of the shield from the top. Then
flip the board over so its resting on the four headers. Pull on
the legs if necessary to straighten them out.
Tack one pin of each header, to get them set in place before
more soldering. If the headers go crooked you can re-heat the
one pin while re-positioning to straighten them up
© Adafruit Industries https://learn.adafruit.com/adafruit-airlift-shield-esp32-wifi-co-processor Page 17 of 56

Adafruit AirLift Shield ESP32 Specifications

General

Microcontroller	ESP32
Interface	SPI
WiFi	802.11 b/g/n
Voltage Level	3.3V
Type	Shield
SD Card Socket	No
Wireless Connectivity	WiFi
Input Voltage	5V
Flash Memory	4 MB
SRAM	520 KB
Clock Speed	240 MHz
USB	No
Compatible Boards	Arduino Uno, Mega
Antenna	Ceramic
Digital I/O Pins	Not directly accessible (used for SPI communication)