The Feather M0 WiFi pairs the ATSAMD21G18 ARM Cortex M0+ processor with an ATWINC1500 Wi-Fi module for reliable 802.11b/g/n connectivity. The ATWINC1500 handles all Wi-Fi networking on a dedicated chip, freeing the main processor for your application code without the need to yield or share CPU time.

The ATWINC1500 offers low power consumption (~12 mA active, ~2 mA sleep with manual power management), SSL/TLS 1.2 support, Soft-AP mode, and WEP/WPA/WPA2 encryption. It connects and scans networks quickly and streams data reliably with up to 12 MHz SPI clock speed.

Key Features

• ATSAMD21G18 Processor – ARM Cortex M0+ running at 48 MHz, 3.3V logic
• 256 KB Flash + 32 KB RAM – No EEPROM
• ATWINC1500 Wi-Fi Module – FCC-certified 802.11b/g/n with built-in low-power management
• SSL/TLS 1.2 – Secure connections handled by the Wi-Fi module
• Soft-AP Mode – Create your own wireless access point
• Low Power Wi-Fi – ~12 mA active (WINC) + ~10 mA (ATSAMD21); Wi-Fi module sleeps at ~2 mA
• 600 mA Regulator – AP2112K-3.3 regulator supports Wi-Fi transmit peaks up to 300 mA
• Native USB – Built-in USB-to-Serial for programming and debugging
• 20 GPIO Pins – Hardware Serial, I2C, and SPI; 8× PWM, 10× analogue inputs, 1× analogue output
• 200 mA LiPo Charger – JST connector with charging status LED and battery voltage monitoring
• SWD Debug – SWDIO/SWCLK pads on the bottom for CMSIS-DAP debugging
• Slightly Larger – 53.65 mm × 23 mm × 8 mm (2.6 mm longer than standard Feathers), weighing 6.1 g

Also Available

• Feather M0 WiFi with uFL – Same board with uFL connector instead of on-board antenna
• Feather M0 Express – CircuitPython with 2 MB flash
• Feather M0 Basic Proto – Prototyping area
• Feather M0 Adalogger – MicroSD data logging
• Feather M0 Bluefruit LE – Bluetooth Low Energy
• Feather M0 RFM95 LoRa 900 MHz – Long-range LoRa radio
• Feather M0 RFM69HCW 868/915 MHz – Packet radio

Ideal For

• IoT projects requiring reliable Wi-Fi connectivity
• Battery-powered connected devices with low power requirements
• Web servers and MQTT clients
• Projects needing full processor control without Wi-Fi yielding

Package Contents

• 1× Feather M0 WiFi (ATSAMD21 + ATWINC1500) with on-board antenna
• 1× Header pin set