{"title":"Adafruit AirLift Shield - ESP32 WiFi Co-Processor","handle":"adafruit-airlift-shield-esp32-wifi-co-processor","url":"/products/adafruit-airlift-shield-esp32-wifi-co-processor","description":"Give your Arduino project WiFi connectivity with the Adafruit AirLift Shield. This shield 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.\n\nThe 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. The shield also includes a microSD card socket for data storage or hosting content retrieved from the Internet.\n\nKey Features\n\n\nESP32 WiFi Co-Processor – Handles WiFi networking and TLS/SSL encryption\n\n8 MHz SPI Interface – High-speed communication with just SPI + 2 control pins\n\nPre-Programmed Firmware – Ready to use out of the box with Arduino and CircuitPython\n\nTLS/SSL Support – Root certificates pre-burned for secure connections\n\nMicroSD Card Socket – For data storage and hosting\n\n3V and 5V Compatible – On-board 3.3V regulator for the ESP32\n\nShared SPI Bus – Tri-state MOSI allows sharing with other shields\n\nArduino Shield Form Factor – Plugs directly into Arduino-compatible boards\n\n\nCompatibility\n\n\nArduino – Works with Metro M0, M4 and similar (recommended for best results). ATmega328-based boards can do basic connectivity but have limited RAM.\n\nCircuitPython – Requires Metro M4 or equivalent SAMD51/Cortex M4 minimum\n\nSD Card – ATmega328-based boards cannot use both WiFi and SD card simultaneously due to RAM limitations\n\n\nAlso Available\n\n\nAirLift ESP32 WiFi Breakout – Universal breakout for any microcontroller\n\nAirLift FeatherWing – Feather form factor version\n\nAirLift Bitsy Add-On – Compact version for ItsyBitsy boards\n\n\nIdeal For\n\nAdding WiFi to Arduino projects\nIoT data logging with SD card storage\nWeb API integrations\nSecure HTTPS communication\n\n\nPackage Contents\n\n1× Adafruit AirLift Shield (assembled and tested)\n1× Header strip\n\n\n\nNote: Arduino board and microSD card not included. Enterprise WiFi is not supported. Power supply must provide up to 250 mA during WiFi usage. Some light soldering required to attach the included headers.\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":5115,"title":"Default Title","sku":"AF-4285","price":29.17,"on_sale":false,"in_stock":true,"available_quantity":13,"option1":"Default Title"}]}