Adafruit Metro M4 Express AirLift (WiFi) - Lite

Give your next project a lift with AirLift, the ESP32 co-processor integrated into the Metro M4. Featuring the Microchip ATSAMD51 with a 120MHz Cortex M4 core and floating point support, this board offers powerful performance with plenty of FLASH and RAM for your code to run fast and roomy.

This Metro board includes a certified WiFi module capable of handling TLS and socket needs, with pre-loaded root certificates. Compatible with all Adafruit shields and equipped with analog pins, SPI, UART, and I2C hardware support, it features the ATSAMD51J19 chip and offers many capabilities including:

• Cortex M4 core at 120 MHz with DSP instructions and floating point support
• 512 KB flash and 192 KB RAM
• 32-bit, 3.3V logic and power
• Dual 1 MSPS DAC and ADC (8 analog pins)
• 6 hardware SERCOMs (I2C, SPI, UART)
• 22 PWM outputs
• Stereo I2S input/output with MCK pin
• 10-bit Parallel capture controller (camera/video)
• Built-in cryptographic engines with AES, RNG, and public key controller

Additional board features include:

• Power via 7-9V DC jack with on/off switch or micro USB connector
• 25 GPIO pins including 8 analog inputs and 2 analog outputs
• Native USB port for serial, HID and easy programming with UF2 bootloader
• AirLift WiFi co-processor with TLS/SSL support and Arduino & CircuitPython libraries
• Four indicator LEDs and one NeoPixel for easy debugging
• 2 MB QSPI Flash onboard for data storage and CircuitPython file storage
• Easy drag-and-drop programming with no special tools needed

This board is ideal for CircuitPython, running efficiently with JSON support and compatible networking libraries, making secure IoT projects quick and straightforward. The board dimensions are 72.0mm x 54.0mm x 15.0mm and it weighs 21.8g.