Adafruit AirLift – ESP32 WiFi Co-Processor Breakout Board

Give your plain ol' microcontroller project a lift with the Adafruit AirLift - a breakout board that lets you use the powerful ESP32 as a WiFi co-processor.

VIN
Power input for the AirLift ESP32 co-processor breakout. Adafruit Learn says use a 3.3V to 5VDC source capable of 250mA transmit spikes.
Type · powerVoltage · 3.3V to 5VDC input
3vo
Output from the onboard 3.3V regulator, usable for up to about 50mA for other devices.
Type · powerVoltage · 3.3V output, about 50mA available
GND
Power and logic ground.
Type · groundVoltage · 0V
SCK
SPI clock from the microcontroller to the AirLift, level shifted for 3V to 5V logic.
Type · signalVoltage · 3V to 5V logic input
MISO
SPI data from the AirLift to the microcontroller. Adafruit Learn states this is 3.3V logic out and tri-stated when not selected.
Type · signalVoltage · 3.3V logic output, readable by 3V to 5V logic

Start wiring

SPI · UART · Ethernet · 3.3 – 5 V · Breakout

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Module pins: VIN, 3vo, GND, SCK, MISO, MOSI, CS, BUSY. Schematik maps them to your board in the app.

Networking

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4 groups

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Pin	Type	Function	Voltage
VIN	power	Power input for the AirLift ESP32 co-processor breakout. Adafruit Learn says use a 3.3V to 5VDC source capable of 250mA transmit spikes.	3.3V to 5VDC input
3vo	power	Output from the onboard 3.3V regulator, usable for up to about 50mA for other devices.	3.3V output, about 50mA available
GND	ground	Power and logic ground.	0V
SCK	signal	SPI clock from the microcontroller to the AirLift, level shifted for 3V to 5V logic.	3V to 5V logic input
MISO	signal	SPI data from the AirLift to the microcontroller. Adafruit Learn states this is 3.3V logic out and tri-stated when not selected.	3.3V logic output, readable by 3V to 5V logic
MOSI	signal	SPI data from the microcontroller to the AirLift, level shifted for 3V to 5V logic.	3V to 5V logic input
CS	signal	SPI chip-select from the microcontroller; also used to choose WiFi or BLE on reset.	3V to 5V logic input
BUSY	signal	Required AirLift status output indicating readiness for more commands.	3.3V logic output, readable by 3V to 5V logic
!RESET	signal	Reset input to the AirLift. Drive low to reset the ESP32 co-processor.	3V to 5V logic input
GP0	signal	Optional ESP32 GPIO0 bootloading/data-ready signal, required for BLE mode according to Adafruit Learn.	3.3V logic
RXI	signal	Serial data input used for bootloading firmware and BLE-mode communication.	3.3V logic
TXO	signal	Serial data output used for bootloading firmware and BLE-mode communication.	3.3V logic

Pinout

Start wiring

Bluetooth

Cellular

GNSS & GPS

LoRa & RF