Adafruit AirLift Shield - ESP32 WiFi Co-Processor

Give your Arduino project a lift with the Adafruit AirLift Shield - a shield that lets you use the powerful ESP32 as a WiFi co-processor.

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 any 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 the SPI bus and 2 control pins plus a power supply that can provide up to 250mA during WiFi usage.