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Adafruit AirLift – ESP32 WiFi Co-Processor Breakout Board
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Give any microcontroller WiFi connectivity with the Adafruit AirLift Breakout. This board uses an ESP32 as a WiFi co-processor, handling all the heavy liftin...
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Give any microcontroller WiFi connectivity with the Adafruit AirLift Breakout. This board uses an ESP32 as a WiFi co-processor, handling all the heavy lifting of network connections and TLS/SSL encryption so your main microcontroller can focus on your application logic.
The ESP32 communicates over 8 MHz SPI for high-speed data transfer, requiring just an SPI bus and 2 control pins. It comes pre-programmed with WiFi co-processor firmware (a variant of Arduino WiFiNINA) and has root certificates pre-burned in for secure HTTPS connections. On-board level shifting and a 3.3V regulator let you use it with both 3V and 5V microcontrollers.
Key Features
- ESP32 WiFi Co-Processor – Handles WiFi networking and TLS/SSL encryption
- 8 MHz SPI Interface – High-speed communication with just SPI + 2 control pins
- Pre-Programmed Firmware – Ready to use out of the box with Arduino and CircuitPython
- TLS/SSL Support – Root certificates pre-burned for secure connections
- 3V and 5V Compatible – On-board 3.3V regulator and level shifting circuitry
- Shared SPI Bus – Tri-state MOSI allows sharing with other SPI devices
- Breadboard-Friendly – Includes header strip for solderless breadboard use
Compatibility
- Arduino – Works with ATmega328 and up, though larger chips (SAMD51, etc.) recommended for complex tasks
- CircuitPython – Requires SAMD51/Cortex M4 minimum for sufficient RAM
Also Available
- AirLift Bitsy Add-On – Compact version designed to stack on ItsyBitsy boards
Ideal For
- Adding WiFi to existing microcontroller projects
- IoT data logging and cloud connectivity
- Web API integrations
- Secure HTTPS communication
Package Contents
- 1× Adafruit AirLift ESP32 WiFi Co-Processor Breakout (assembled and tested)
- 1× Header strip
Note: Enterprise WiFi is not supported. Power supply must provide up to 250 mA during WiFi usage. Some light soldering is required to attach the included header pins.
Jargon buster
Plain-language definitions for the technical terms used above.
- 3.3V regulator
- A 3.3V regulator is a power circuit that provides a steady 3.3 volts for parts that need that supply voltage. On a breakout board, it can let the sensor run safely even when the connected microcontroller or power source uses a higher voltage.
- API
- An API is a software interface that lets a program control hardware or features provided by the operating system. In this product, API support matters if you want your software to adjust display settings such as brightness or contrast automatically.
- breakout
- A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- CircuitPython
- A beginner-friendly version of Python designed to run directly on microcontroller boards. If a product supports CircuitPython, you can often program it by copying code files onto the board rather than setting up a more complex toolchain.
- ESP32
- ESP32 is a family of microcontroller modules with built-in wireless features such as Bluetooth and WiFi. Knowing this product uses an ESP32-based module helps explain how it provides wireless serial communication and firmware update features.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- RAM
- RAM is temporary memory used while a device is running, and its contents are lost when power is removed. A “Run in RAM” mode is useful for testing settings without permanently programming the module, but it may not support every feature.
- SAMD51
- A family of 32-bit microcontroller chips used to run the main program on a board. In this kit it handles the display-driving work, so it matters for performance when showing animations and graphics on an LED matrix.
- solderless breadboard
- A reusable board with connected holes for building temporary circuits without soldering. It matters in beginner kits because students can change wiring quickly and safely while learning how components connect.
- SPI
- A fast serial communication bus often used for displays, memory cards, and sensors. It matters because SPI devices need specific pins for clock and data, plus a separate chip-select line for each device.
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