User Manual

Overview

Give your Feather project a

lift

with the Adafruit AirLift FeatherWing - a FeatherWing that lets you use the powerful

ESP32 as a WiFi co-processor. You probably have your favorite Feather (like the Feather M4 (https://adafru.it/Cmy)) that

comes with its own set of awesome peripherals and lots of libraries. But it doesn't have WiFi built in! So lets give that

chip a best friend, the ESP32. This chip can handle all the heavy lifting of connecting to a WiFi network and transferring

data from a site, even if its using the latest TLS/SSL encryption (it has root certificates pre-burned in).

Having WiFi managed by a separate chip means your code is simpler, you don't have to cache socket data, or compile

in & debug an SSL library. Send basic but powerful socket-based commands over 8MHz SPI for high speed data

transfer. You can use 3V or 5V Arduino, any chip from the ATmega328 or up, although the '328 will not be able to do

very complex tasks or buffer a lot of data. It also works great with CircuitPython, a SAMD51/Cortex M4 minimum

required since we need a bunch of RAM. All you need is an SPI bus and 2 control pins plus a power supply that can

provide up to 250mA during WiFi usage.

https://learn.adafruit.com/adafruit-airlift-featherwing-esp32-wifi-co-

processor-featherwing

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