Adafruit WINC1500 WiFi Shield with PCB Antenna

Connect your Arduino-compatible to the Internet with this WiFi shield featuring the FCC-certified ATWINC1500 module from Atmel. This 802.11bgn-capable module offers SSL support and reliable performance, having run our adafruit.io MQTT demo flawlessly for an entire weekend.

The shield utilizes SPI to communicate and requires only about six wires for setup. It's optimized for SAMD21-based boards like the Arduino Zero, Metro M0 Express, or Arduino Mega, but not compatible with 328P, 32u4, or attiny-based boards.

It supports network protocols 802.11b, g, or n and offers encryption options such as WEP, WPA, and WPA2. Additionally, it enables Soft AP mode for creating ad-hoc networks, with TLS 1.2 for secure client connections. A built-in PCB antenna is included, and a uFL version is available for extended range.

Featuring level shifting on input pins, the shield works with 3V or 5V logic boards. The 3.3V voltage regulator handles 300mA power spikes, operating from 3-5.5VDC. Three LEDs indicate SSID connection and data transmission, controllable via the SPI interface or Arduino library.

The shield includes a micro SD card socket for data hosting or storage, though not simultaneously usable with the WiFi module on ATmega328-based Arduinos. For increased memory capability, consider upgrading to a Metro M0 Express. Note that there are no CircuitPython/MicroPython drivers for the WINC1500.